v4.19.13 snapshot.
diff --git a/drivers/gpu/drm/i2c/Kconfig b/drivers/gpu/drm/i2c/Kconfig
new file mode 100644
index 0000000..65d3acb
--- /dev/null
+++ b/drivers/gpu/drm/i2c/Kconfig
@@ -0,0 +1,35 @@
+menu "I2C encoder or helper chips"
+ depends on DRM && DRM_KMS_HELPER && I2C
+
+config DRM_I2C_CH7006
+ tristate "Chrontel ch7006 TV encoder"
+ default m if DRM_NOUVEAU
+ help
+ Support for Chrontel ch7006 and similar TV encoders, found
+ on some nVidia video cards.
+
+ This driver is currently only useful if you're also using
+ the nouveau driver.
+
+config DRM_I2C_SIL164
+ tristate "Silicon Image sil164 TMDS transmitter"
+ default m if DRM_NOUVEAU
+ help
+ Support for sil164 and similar single-link (or dual-link
+ when used in pairs) TMDS transmitters, used in some nVidia
+ video cards.
+
+config DRM_I2C_NXP_TDA998X
+ tristate "NXP Semiconductors TDA998X HDMI encoder"
+ default m if DRM_TILCDC
+ select CEC_CORE if CEC_NOTIFIER
+ select SND_SOC_HDMI_CODEC if SND_SOC
+ help
+ Support for NXP Semiconductors TDA998X HDMI encoders.
+
+config DRM_I2C_NXP_TDA9950
+ tristate "NXP Semiconductors TDA9950/TDA998X HDMI CEC"
+ select CEC_NOTIFIER
+ select CEC_CORE
+
+endmenu
diff --git a/drivers/gpu/drm/i2c/Makefile b/drivers/gpu/drm/i2c/Makefile
new file mode 100644
index 0000000..a962f6f
--- /dev/null
+++ b/drivers/gpu/drm/i2c/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+ch7006-y := ch7006_drv.o ch7006_mode.o
+obj-$(CONFIG_DRM_I2C_CH7006) += ch7006.o
+
+sil164-y := sil164_drv.o
+obj-$(CONFIG_DRM_I2C_SIL164) += sil164.o
+
+tda998x-y := tda998x_drv.o
+obj-$(CONFIG_DRM_I2C_NXP_TDA998X) += tda998x.o
+obj-$(CONFIG_DRM_I2C_NXP_TDA9950) += tda9950.o
diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c
new file mode 100644
index 0000000..544a8a2
--- /dev/null
+++ b/drivers/gpu/drm/i2c/ch7006_drv.c
@@ -0,0 +1,549 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+
+#include "ch7006_priv.h"
+
+/* DRM encoder functions */
+
+static void ch7006_encoder_set_config(struct drm_encoder *encoder,
+ void *params)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+
+ priv->params = *(struct ch7006_encoder_params *)params;
+}
+
+static void ch7006_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+
+ drm_property_destroy(encoder->dev, priv->scale_property);
+
+ kfree(priv);
+ to_encoder_slave(encoder)->slave_priv = NULL;
+
+ drm_i2c_encoder_destroy(encoder);
+}
+
+static void ch7006_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct ch7006_state *state = &priv->state;
+
+ ch7006_dbg(client, "\n");
+
+ if (mode == priv->last_dpms)
+ return;
+ priv->last_dpms = mode;
+
+ ch7006_setup_power_state(encoder);
+
+ ch7006_load_reg(client, state, CH7006_POWER);
+}
+
+static void ch7006_encoder_save(struct drm_encoder *encoder)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+
+ ch7006_dbg(client, "\n");
+
+ ch7006_state_save(client, &priv->saved_state);
+}
+
+static void ch7006_encoder_restore(struct drm_encoder *encoder)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+
+ ch7006_dbg(client, "\n");
+
+ ch7006_state_load(client, &priv->saved_state);
+}
+
+static bool ch7006_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+
+ /* The ch7006 is painfully picky with the input timings so no
+ * custom modes for now... */
+
+ priv->mode = ch7006_lookup_mode(encoder, mode);
+
+ return !!priv->mode;
+}
+
+static int ch7006_encoder_mode_valid(struct drm_encoder *encoder,
+ struct drm_display_mode *mode)
+{
+ if (ch7006_lookup_mode(encoder, mode))
+ return MODE_OK;
+ else
+ return MODE_BAD;
+}
+
+static void ch7006_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *drm_mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct ch7006_encoder_params *params = &priv->params;
+ struct ch7006_state *state = &priv->state;
+ uint8_t *regs = state->regs;
+ const struct ch7006_mode *mode = priv->mode;
+ const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
+ int start_active;
+
+ ch7006_dbg(client, "\n");
+
+ regs[CH7006_DISPMODE] = norm->dispmode | mode->dispmode;
+ regs[CH7006_BWIDTH] = 0;
+ regs[CH7006_INPUT_FORMAT] = bitf(CH7006_INPUT_FORMAT_FORMAT,
+ params->input_format);
+
+ regs[CH7006_CLKMODE] = CH7006_CLKMODE_SUBC_LOCK
+ | bitf(CH7006_CLKMODE_XCM, params->xcm)
+ | bitf(CH7006_CLKMODE_PCM, params->pcm);
+ if (params->clock_mode)
+ regs[CH7006_CLKMODE] |= CH7006_CLKMODE_MASTER;
+ if (params->clock_edge)
+ regs[CH7006_CLKMODE] |= CH7006_CLKMODE_POS_EDGE;
+
+ start_active = (drm_mode->htotal & ~0x7) - (drm_mode->hsync_start & ~0x7);
+ regs[CH7006_POV] = bitf(CH7006_POV_START_ACTIVE_8, start_active);
+ regs[CH7006_START_ACTIVE] = bitf(CH7006_START_ACTIVE_0, start_active);
+
+ regs[CH7006_INPUT_SYNC] = 0;
+ if (params->sync_direction)
+ regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_OUTPUT;
+ if (params->sync_encoding)
+ regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_EMBEDDED;
+ if (drm_mode->flags & DRM_MODE_FLAG_PVSYNC)
+ regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_PVSYNC;
+ if (drm_mode->flags & DRM_MODE_FLAG_PHSYNC)
+ regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_PHSYNC;
+
+ regs[CH7006_DETECT] = 0;
+ regs[CH7006_BCLKOUT] = 0;
+
+ regs[CH7006_SUBC_INC3] = 0;
+ if (params->pout_level)
+ regs[CH7006_SUBC_INC3] |= CH7006_SUBC_INC3_POUT_3_3V;
+
+ regs[CH7006_SUBC_INC4] = 0;
+ if (params->active_detect)
+ regs[CH7006_SUBC_INC4] |= CH7006_SUBC_INC4_DS_INPUT;
+
+ regs[CH7006_PLL_CONTROL] = priv->saved_state.regs[CH7006_PLL_CONTROL];
+
+ ch7006_setup_levels(encoder);
+ ch7006_setup_subcarrier(encoder);
+ ch7006_setup_pll(encoder);
+ ch7006_setup_power_state(encoder);
+ ch7006_setup_properties(encoder);
+
+ ch7006_state_load(client, state);
+}
+
+static enum drm_connector_status ch7006_encoder_detect(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct ch7006_state *state = &priv->state;
+ int det;
+
+ ch7006_dbg(client, "\n");
+
+ ch7006_save_reg(client, state, CH7006_DETECT);
+ ch7006_save_reg(client, state, CH7006_POWER);
+ ch7006_save_reg(client, state, CH7006_CLKMODE);
+
+ ch7006_write(client, CH7006_POWER, CH7006_POWER_RESET |
+ bitfs(CH7006_POWER_LEVEL, NORMAL));
+ ch7006_write(client, CH7006_CLKMODE, CH7006_CLKMODE_MASTER);
+
+ ch7006_write(client, CH7006_DETECT, CH7006_DETECT_SENSE);
+
+ ch7006_write(client, CH7006_DETECT, 0);
+
+ det = ch7006_read(client, CH7006_DETECT);
+
+ ch7006_load_reg(client, state, CH7006_CLKMODE);
+ ch7006_load_reg(client, state, CH7006_POWER);
+ ch7006_load_reg(client, state, CH7006_DETECT);
+
+ if ((det & (CH7006_DETECT_SVIDEO_Y_TEST|
+ CH7006_DETECT_SVIDEO_C_TEST|
+ CH7006_DETECT_CVBS_TEST)) == 0)
+ priv->subconnector = DRM_MODE_SUBCONNECTOR_SCART;
+ else if ((det & (CH7006_DETECT_SVIDEO_Y_TEST|
+ CH7006_DETECT_SVIDEO_C_TEST)) == 0)
+ priv->subconnector = DRM_MODE_SUBCONNECTOR_SVIDEO;
+ else if ((det & CH7006_DETECT_CVBS_TEST) == 0)
+ priv->subconnector = DRM_MODE_SUBCONNECTOR_Composite;
+ else
+ priv->subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
+
+ drm_object_property_set_value(&connector->base,
+ encoder->dev->mode_config.tv_subconnector_property,
+ priv->subconnector);
+
+ return priv->subconnector ? connector_status_connected :
+ connector_status_disconnected;
+}
+
+static int ch7006_encoder_get_modes(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ const struct ch7006_mode *mode;
+ int n = 0;
+
+ for (mode = ch7006_modes; mode->mode.clock; mode++) {
+ if (~mode->valid_scales & 1<<priv->scale ||
+ ~mode->valid_norms & 1<<priv->norm)
+ continue;
+
+ drm_mode_probed_add(connector,
+ drm_mode_duplicate(encoder->dev, &mode->mode));
+
+ n++;
+ }
+
+ return n;
+}
+
+static int ch7006_encoder_create_resources(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct drm_device *dev = encoder->dev;
+ struct drm_mode_config *conf = &dev->mode_config;
+
+ drm_mode_create_tv_properties(dev, NUM_TV_NORMS, ch7006_tv_norm_names);
+
+ priv->scale_property = drm_property_create_range(dev, 0, "scale", 0, 2);
+ if (!priv->scale_property)
+ return -ENOMEM;
+
+ drm_object_attach_property(&connector->base, conf->tv_select_subconnector_property,
+ priv->select_subconnector);
+ drm_object_attach_property(&connector->base, conf->tv_subconnector_property,
+ priv->subconnector);
+ drm_object_attach_property(&connector->base, conf->tv_left_margin_property,
+ priv->hmargin);
+ drm_object_attach_property(&connector->base, conf->tv_bottom_margin_property,
+ priv->vmargin);
+ drm_object_attach_property(&connector->base, conf->tv_mode_property,
+ priv->norm);
+ drm_object_attach_property(&connector->base, conf->tv_brightness_property,
+ priv->brightness);
+ drm_object_attach_property(&connector->base, conf->tv_contrast_property,
+ priv->contrast);
+ drm_object_attach_property(&connector->base, conf->tv_flicker_reduction_property,
+ priv->flicker);
+ drm_object_attach_property(&connector->base, priv->scale_property,
+ priv->scale);
+
+ return 0;
+}
+
+static int ch7006_encoder_set_property(struct drm_encoder *encoder,
+ struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct ch7006_state *state = &priv->state;
+ struct drm_mode_config *conf = &encoder->dev->mode_config;
+ struct drm_crtc *crtc = encoder->crtc;
+ bool modes_changed = false;
+
+ ch7006_dbg(client, "\n");
+
+ if (property == conf->tv_select_subconnector_property) {
+ priv->select_subconnector = val;
+
+ ch7006_setup_power_state(encoder);
+
+ ch7006_load_reg(client, state, CH7006_POWER);
+
+ } else if (property == conf->tv_left_margin_property) {
+ priv->hmargin = val;
+
+ ch7006_setup_properties(encoder);
+
+ ch7006_load_reg(client, state, CH7006_POV);
+ ch7006_load_reg(client, state, CH7006_HPOS);
+
+ } else if (property == conf->tv_bottom_margin_property) {
+ priv->vmargin = val;
+
+ ch7006_setup_properties(encoder);
+
+ ch7006_load_reg(client, state, CH7006_POV);
+ ch7006_load_reg(client, state, CH7006_VPOS);
+
+ } else if (property == conf->tv_mode_property) {
+ if (connector->dpms != DRM_MODE_DPMS_OFF)
+ return -EINVAL;
+
+ priv->norm = val;
+
+ modes_changed = true;
+
+ } else if (property == conf->tv_brightness_property) {
+ priv->brightness = val;
+
+ ch7006_setup_levels(encoder);
+
+ ch7006_load_reg(client, state, CH7006_BLACK_LEVEL);
+
+ } else if (property == conf->tv_contrast_property) {
+ priv->contrast = val;
+
+ ch7006_setup_properties(encoder);
+
+ ch7006_load_reg(client, state, CH7006_CONTRAST);
+
+ } else if (property == conf->tv_flicker_reduction_property) {
+ priv->flicker = val;
+
+ ch7006_setup_properties(encoder);
+
+ ch7006_load_reg(client, state, CH7006_FFILTER);
+
+ } else if (property == priv->scale_property) {
+ if (connector->dpms != DRM_MODE_DPMS_OFF)
+ return -EINVAL;
+
+ priv->scale = val;
+
+ modes_changed = true;
+
+ } else {
+ return -EINVAL;
+ }
+
+ if (modes_changed) {
+ drm_helper_probe_single_connector_modes(connector, 0, 0);
+
+ /* Disable the crtc to ensure a full modeset is
+ * performed whenever it's turned on again. */
+ if (crtc)
+ drm_crtc_force_disable(crtc);
+ }
+
+ return 0;
+}
+
+static const struct drm_encoder_slave_funcs ch7006_encoder_funcs = {
+ .set_config = ch7006_encoder_set_config,
+ .destroy = ch7006_encoder_destroy,
+ .dpms = ch7006_encoder_dpms,
+ .save = ch7006_encoder_save,
+ .restore = ch7006_encoder_restore,
+ .mode_fixup = ch7006_encoder_mode_fixup,
+ .mode_valid = ch7006_encoder_mode_valid,
+ .mode_set = ch7006_encoder_mode_set,
+ .detect = ch7006_encoder_detect,
+ .get_modes = ch7006_encoder_get_modes,
+ .create_resources = ch7006_encoder_create_resources,
+ .set_property = ch7006_encoder_set_property,
+};
+
+
+/* I2C driver functions */
+
+static int ch7006_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ uint8_t addr = CH7006_VERSION_ID;
+ uint8_t val;
+ int ret;
+
+ ch7006_dbg(client, "\n");
+
+ ret = i2c_master_send(client, &addr, sizeof(addr));
+ if (ret < 0)
+ goto fail;
+
+ ret = i2c_master_recv(client, &val, sizeof(val));
+ if (ret < 0)
+ goto fail;
+
+ ch7006_info(client, "Detected version ID: %x\n", val);
+
+ /* I don't know what this is for, but otherwise I get no
+ * signal.
+ */
+ ch7006_write(client, 0x3d, 0x0);
+
+ return 0;
+
+fail:
+ ch7006_err(client, "Error %d reading version ID\n", ret);
+
+ return -ENODEV;
+}
+
+static int ch7006_remove(struct i2c_client *client)
+{
+ ch7006_dbg(client, "\n");
+
+ return 0;
+}
+
+static int ch7006_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ ch7006_dbg(client, "\n");
+
+ ch7006_write(client, 0x3d, 0x0);
+
+ return 0;
+}
+
+static int ch7006_encoder_init(struct i2c_client *client,
+ struct drm_device *dev,
+ struct drm_encoder_slave *encoder)
+{
+ struct ch7006_priv *priv;
+ int i;
+
+ ch7006_dbg(client, "\n");
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ encoder->slave_priv = priv;
+ encoder->slave_funcs = &ch7006_encoder_funcs;
+
+ priv->norm = TV_NORM_PAL;
+ priv->select_subconnector = DRM_MODE_SUBCONNECTOR_Automatic;
+ priv->subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
+ priv->scale = 1;
+ priv->contrast = 50;
+ priv->brightness = 50;
+ priv->flicker = 50;
+ priv->hmargin = 50;
+ priv->vmargin = 50;
+ priv->last_dpms = -1;
+ priv->chip_version = ch7006_read(client, CH7006_VERSION_ID);
+
+ if (ch7006_tv_norm) {
+ for (i = 0; i < NUM_TV_NORMS; i++) {
+ if (!strcmp(ch7006_tv_norm_names[i], ch7006_tv_norm)) {
+ priv->norm = i;
+ break;
+ }
+ }
+
+ if (i == NUM_TV_NORMS)
+ ch7006_err(client, "Invalid TV norm setting \"%s\".\n",
+ ch7006_tv_norm);
+ }
+
+ if (ch7006_scale >= 0 && ch7006_scale <= 2)
+ priv->scale = ch7006_scale;
+ else
+ ch7006_err(client, "Invalid scale setting \"%d\".\n",
+ ch7006_scale);
+
+ return 0;
+}
+
+static const struct i2c_device_id ch7006_ids[] = {
+ { "ch7006", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ch7006_ids);
+
+static const struct dev_pm_ops ch7006_pm_ops = {
+ .resume = ch7006_resume,
+};
+
+static struct drm_i2c_encoder_driver ch7006_driver = {
+ .i2c_driver = {
+ .probe = ch7006_probe,
+ .remove = ch7006_remove,
+
+ .driver = {
+ .name = "ch7006",
+ .pm = &ch7006_pm_ops,
+ },
+
+ .id_table = ch7006_ids,
+ },
+
+ .encoder_init = ch7006_encoder_init,
+};
+
+
+/* Module initialization */
+
+static int __init ch7006_init(void)
+{
+ return drm_i2c_encoder_register(THIS_MODULE, &ch7006_driver);
+}
+
+static void __exit ch7006_exit(void)
+{
+ drm_i2c_encoder_unregister(&ch7006_driver);
+}
+
+int ch7006_debug;
+module_param_named(debug, ch7006_debug, int, 0600);
+MODULE_PARM_DESC(debug, "Enable debug output.");
+
+char *ch7006_tv_norm;
+module_param_named(tv_norm, ch7006_tv_norm, charp, 0600);
+MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
+ "\t\tSupported: PAL, PAL-M, PAL-N, PAL-Nc, PAL-60, NTSC-M, NTSC-J.\n"
+ "\t\tDefault: PAL");
+
+int ch7006_scale = 1;
+module_param_named(scale, ch7006_scale, int, 0600);
+MODULE_PARM_DESC(scale, "Default scale.\n"
+ "\t\tSupported: 0 -> Select video modes with a higher blanking ratio.\n"
+ "\t\t\t1 -> Select default video modes.\n"
+ "\t\t\t2 -> Select video modes with a lower blanking ratio.");
+
+MODULE_AUTHOR("Francisco Jerez <currojerez@riseup.net>");
+MODULE_DESCRIPTION("Chrontel ch7006 TV encoder driver");
+MODULE_LICENSE("GPL and additional rights");
+
+module_init(ch7006_init);
+module_exit(ch7006_exit);
diff --git a/drivers/gpu/drm/i2c/ch7006_mode.c b/drivers/gpu/drm/i2c/ch7006_mode.c
new file mode 100644
index 0000000..bb5f67f
--- /dev/null
+++ b/drivers/gpu/drm/i2c/ch7006_mode.c
@@ -0,0 +1,471 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "ch7006_priv.h"
+
+const char * const ch7006_tv_norm_names[] = {
+ [TV_NORM_PAL] = "PAL",
+ [TV_NORM_PAL_M] = "PAL-M",
+ [TV_NORM_PAL_N] = "PAL-N",
+ [TV_NORM_PAL_NC] = "PAL-Nc",
+ [TV_NORM_PAL_60] = "PAL-60",
+ [TV_NORM_NTSC_M] = "NTSC-M",
+ [TV_NORM_NTSC_J] = "NTSC-J",
+};
+
+#define NTSC_LIKE_TIMINGS .vrefresh = 60 * fixed1/1.001, \
+ .vdisplay = 480, \
+ .vtotal = 525, \
+ .hvirtual = 660
+
+#define PAL_LIKE_TIMINGS .vrefresh = 50 * fixed1, \
+ .vdisplay = 576, \
+ .vtotal = 625, \
+ .hvirtual = 810
+
+const struct ch7006_tv_norm_info ch7006_tv_norms[] = {
+ [TV_NORM_NTSC_M] = {
+ NTSC_LIKE_TIMINGS,
+ .black_level = 0.339 * fixed1,
+ .subc_freq = 3579545 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, NTSC),
+ .voffset = 0,
+ },
+ [TV_NORM_NTSC_J] = {
+ NTSC_LIKE_TIMINGS,
+ .black_level = 0.286 * fixed1,
+ .subc_freq = 3579545 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, NTSC_J),
+ .voffset = 0,
+ },
+ [TV_NORM_PAL] = {
+ PAL_LIKE_TIMINGS,
+ .black_level = 0.3 * fixed1,
+ .subc_freq = 4433618.75 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL),
+ .voffset = 0,
+ },
+ [TV_NORM_PAL_M] = {
+ NTSC_LIKE_TIMINGS,
+ .black_level = 0.339 * fixed1,
+ .subc_freq = 3575611.433 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL_M),
+ .voffset = 16,
+ },
+
+ /* The following modes seem to work right but they're
+ * undocumented */
+
+ [TV_NORM_PAL_N] = {
+ PAL_LIKE_TIMINGS,
+ .black_level = 0.339 * fixed1,
+ .subc_freq = 4433618.75 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL),
+ .voffset = 0,
+ },
+ [TV_NORM_PAL_NC] = {
+ PAL_LIKE_TIMINGS,
+ .black_level = 0.3 * fixed1,
+ .subc_freq = 3582056.25 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL),
+ .voffset = 0,
+ },
+ [TV_NORM_PAL_60] = {
+ NTSC_LIKE_TIMINGS,
+ .black_level = 0.3 * fixed1,
+ .subc_freq = 4433618.75 * fixed1,
+ .dispmode = bitfs(CH7006_DISPMODE_OUTPUT_STD, PAL_M),
+ .voffset = 16,
+ },
+};
+
+#define __MODE(f, hd, vd, ht, vt, hsynp, vsynp, \
+ subc, scale, scale_mask, norm_mask, e_hd, e_vd) { \
+ .mode = { \
+ .name = #hd "x" #vd, \
+ .status = 0, \
+ .type = DRM_MODE_TYPE_DRIVER, \
+ .clock = f, \
+ .hdisplay = hd, \
+ .hsync_start = e_hd + 16, \
+ .hsync_end = e_hd + 80, \
+ .htotal = ht, \
+ .hskew = 0, \
+ .vdisplay = vd, \
+ .vsync_start = vd + 10, \
+ .vsync_end = vd + 26, \
+ .vtotal = vt, \
+ .vscan = 0, \
+ .flags = DRM_MODE_FLAG_##hsynp##HSYNC | \
+ DRM_MODE_FLAG_##vsynp##VSYNC, \
+ .vrefresh = 0, \
+ }, \
+ .enc_hdisp = e_hd, \
+ .enc_vdisp = e_vd, \
+ .subc_coeff = subc * fixed1, \
+ .dispmode = bitfs(CH7006_DISPMODE_SCALING_RATIO, scale) | \
+ bitfs(CH7006_DISPMODE_INPUT_RES, e_hd##x##e_vd), \
+ .valid_scales = scale_mask, \
+ .valid_norms = norm_mask \
+ }
+
+#define MODE(f, hd, vd, ht, vt, hsynp, vsynp, \
+ subc, scale, scale_mask, norm_mask) \
+ __MODE(f, hd, vd, ht, vt, hsynp, vsynp, subc, scale, \
+ scale_mask, norm_mask, hd, vd)
+
+#define NTSC_LIKE (1 << TV_NORM_NTSC_M | 1 << TV_NORM_NTSC_J | \
+ 1 << TV_NORM_PAL_M | 1 << TV_NORM_PAL_60)
+
+#define PAL_LIKE (1 << TV_NORM_PAL | 1 << TV_NORM_PAL_N | 1 << TV_NORM_PAL_NC)
+
+const struct ch7006_mode ch7006_modes[] = {
+ MODE(21000, 512, 384, 840, 500, N, N, 181.797557582, 5_4, 0x6, PAL_LIKE),
+ MODE(26250, 512, 384, 840, 625, N, N, 145.438046066, 1_1, 0x1, PAL_LIKE),
+ MODE(20140, 512, 384, 800, 420, N, N, 213.257083791, 5_4, 0x4, NTSC_LIKE),
+ MODE(24671, 512, 384, 784, 525, N, N, 174.0874153, 1_1, 0x3, NTSC_LIKE),
+ MODE(28125, 720, 400, 1125, 500, N, N, 135.742176298, 5_4, 0x6, PAL_LIKE),
+ MODE(34875, 720, 400, 1116, 625, N, N, 109.469496898, 1_1, 0x1, PAL_LIKE),
+ MODE(23790, 720, 400, 945, 420, N, N, 160.475642016, 5_4, 0x4, NTSC_LIKE),
+ MODE(29455, 720, 400, 936, 525, N, N, 129.614941843, 1_1, 0x3, NTSC_LIKE),
+ MODE(25000, 640, 400, 1000, 500, N, N, 152.709948279, 5_4, 0x6, PAL_LIKE),
+ MODE(31500, 640, 400, 1008, 625, N, N, 121.198371646, 1_1, 0x1, PAL_LIKE),
+ MODE(21147, 640, 400, 840, 420, N, N, 180.535097338, 5_4, 0x4, NTSC_LIKE),
+ MODE(26434, 640, 400, 840, 525, N, N, 144.42807787, 1_1, 0x2, NTSC_LIKE),
+ MODE(30210, 640, 400, 840, 600, N, N, 126.374568276, 7_8, 0x1, NTSC_LIKE),
+ MODE(21000, 640, 480, 840, 500, N, N, 181.797557582, 5_4, 0x4, PAL_LIKE),
+ MODE(26250, 640, 480, 840, 625, N, N, 145.438046066, 1_1, 0x2, PAL_LIKE),
+ MODE(31500, 640, 480, 840, 750, N, N, 121.198371646, 5_6, 0x1, PAL_LIKE),
+ MODE(24671, 640, 480, 784, 525, N, N, 174.0874153, 1_1, 0x4, NTSC_LIKE),
+ MODE(28196, 640, 480, 784, 600, N, N, 152.326488422, 7_8, 0x2, NTSC_LIKE),
+ MODE(30210, 640, 480, 800, 630, N, N, 142.171389101, 5_6, 0x1, NTSC_LIKE),
+ __MODE(29500, 720, 576, 944, 625, P, P, 145.592111636, 1_1, 0x7, PAL_LIKE, 800, 600),
+ MODE(36000, 800, 600, 960, 750, P, P, 119.304647022, 5_6, 0x6, PAL_LIKE),
+ MODE(39000, 800, 600, 936, 836, P, P, 110.127366499, 3_4, 0x1, PAL_LIKE),
+ MODE(39273, 800, 600, 1040, 630, P, P, 145.816809399, 5_6, 0x4, NTSC_LIKE),
+ MODE(43636, 800, 600, 1040, 700, P, P, 131.235128487, 3_4, 0x2, NTSC_LIKE),
+ MODE(47832, 800, 600, 1064, 750, P, P, 119.723275165, 7_10, 0x1, NTSC_LIKE),
+ {}
+};
+
+const struct ch7006_mode *ch7006_lookup_mode(struct drm_encoder *encoder,
+ const struct drm_display_mode *drm_mode)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ const struct ch7006_mode *mode;
+
+ for (mode = ch7006_modes; mode->mode.clock; mode++) {
+
+ if (~mode->valid_norms & 1<<priv->norm)
+ continue;
+
+ if (mode->mode.hdisplay != drm_mode->hdisplay ||
+ mode->mode.vdisplay != drm_mode->vdisplay ||
+ mode->mode.vtotal != drm_mode->vtotal ||
+ mode->mode.htotal != drm_mode->htotal ||
+ mode->mode.clock != drm_mode->clock)
+ continue;
+
+ return mode;
+ }
+
+ return NULL;
+}
+
+/* Some common HW state calculation code */
+
+void ch7006_setup_levels(struct drm_encoder *encoder)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ uint8_t *regs = priv->state.regs;
+ const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
+ int gain;
+ int black_level;
+
+ /* Set DAC_GAIN if the voltage drop between white and black is
+ * high enough. */
+ if (norm->black_level < 339*fixed1/1000) {
+ gain = 76;
+
+ regs[CH7006_INPUT_FORMAT] |= CH7006_INPUT_FORMAT_DAC_GAIN;
+ } else {
+ gain = 71;
+
+ regs[CH7006_INPUT_FORMAT] &= ~CH7006_INPUT_FORMAT_DAC_GAIN;
+ }
+
+ black_level = round_fixed(norm->black_level*26625)/gain;
+
+ /* Correct it with the specified brightness. */
+ black_level = interpolate(90, black_level, 208, priv->brightness);
+
+ regs[CH7006_BLACK_LEVEL] = bitf(CH7006_BLACK_LEVEL_0, black_level);
+
+ ch7006_dbg(client, "black level: %d\n", black_level);
+}
+
+void ch7006_setup_subcarrier(struct drm_encoder *encoder)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct ch7006_state *state = &priv->state;
+ const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
+ const struct ch7006_mode *mode = priv->mode;
+ uint32_t subc_inc;
+
+ subc_inc = round_fixed((mode->subc_coeff >> 8)
+ * (norm->subc_freq >> 24));
+
+ setbitf(state, CH7006_SUBC_INC0, 28, subc_inc);
+ setbitf(state, CH7006_SUBC_INC1, 24, subc_inc);
+ setbitf(state, CH7006_SUBC_INC2, 20, subc_inc);
+ setbitf(state, CH7006_SUBC_INC3, 16, subc_inc);
+ setbitf(state, CH7006_SUBC_INC4, 12, subc_inc);
+ setbitf(state, CH7006_SUBC_INC5, 8, subc_inc);
+ setbitf(state, CH7006_SUBC_INC6, 4, subc_inc);
+ setbitf(state, CH7006_SUBC_INC7, 0, subc_inc);
+
+ ch7006_dbg(client, "subcarrier inc: %u\n", subc_inc);
+}
+
+void ch7006_setup_pll(struct drm_encoder *encoder)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ uint8_t *regs = priv->state.regs;
+ const struct ch7006_mode *mode = priv->mode;
+ int n, best_n = 0;
+ int m, best_m = 0;
+ int freq, best_freq = 0;
+
+ for (n = 0; n < CH7006_MAXN; n++) {
+ for (m = 0; m < CH7006_MAXM; m++) {
+ freq = CH7006_FREQ0*(n+2)/(m+2);
+
+ if (abs(freq - mode->mode.clock) <
+ abs(best_freq - mode->mode.clock)) {
+ best_freq = freq;
+ best_n = n;
+ best_m = m;
+ }
+ }
+ }
+
+ regs[CH7006_PLLOV] = bitf(CH7006_PLLOV_N_8, best_n) |
+ bitf(CH7006_PLLOV_M_8, best_m);
+
+ regs[CH7006_PLLM] = bitf(CH7006_PLLM_0, best_m);
+ regs[CH7006_PLLN] = bitf(CH7006_PLLN_0, best_n);
+
+ if (best_n < 108)
+ regs[CH7006_PLL_CONTROL] |= CH7006_PLL_CONTROL_CAPACITOR;
+ else
+ regs[CH7006_PLL_CONTROL] &= ~CH7006_PLL_CONTROL_CAPACITOR;
+
+ ch7006_dbg(client, "n=%d m=%d f=%d c=%d\n",
+ best_n, best_m, best_freq, best_n < 108);
+}
+
+void ch7006_setup_power_state(struct drm_encoder *encoder)
+{
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ uint8_t *power = &priv->state.regs[CH7006_POWER];
+ int subconnector;
+
+ subconnector = priv->select_subconnector ? priv->select_subconnector :
+ priv->subconnector;
+
+ *power = CH7006_POWER_RESET;
+
+ if (priv->last_dpms == DRM_MODE_DPMS_ON) {
+ switch (subconnector) {
+ case DRM_MODE_SUBCONNECTOR_SVIDEO:
+ *power |= bitfs(CH7006_POWER_LEVEL, CVBS_OFF);
+ break;
+ case DRM_MODE_SUBCONNECTOR_Composite:
+ *power |= bitfs(CH7006_POWER_LEVEL, SVIDEO_OFF);
+ break;
+ case DRM_MODE_SUBCONNECTOR_SCART:
+ *power |= bitfs(CH7006_POWER_LEVEL, NORMAL) |
+ CH7006_POWER_SCART;
+ break;
+ }
+
+ } else {
+ if (priv->chip_version >= 0x20)
+ *power |= bitfs(CH7006_POWER_LEVEL, FULL_POWER_OFF);
+ else
+ *power |= bitfs(CH7006_POWER_LEVEL, POWER_OFF);
+ }
+}
+
+void ch7006_setup_properties(struct drm_encoder *encoder)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+ struct ch7006_priv *priv = to_ch7006_priv(encoder);
+ struct ch7006_state *state = &priv->state;
+ const struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
+ const struct ch7006_mode *ch_mode = priv->mode;
+ const struct drm_display_mode *mode = &ch_mode->mode;
+ uint8_t *regs = state->regs;
+ int flicker, contrast, hpos, vpos;
+ uint64_t scale, aspect;
+
+ flicker = interpolate(0, 2, 3, priv->flicker);
+ regs[CH7006_FFILTER] = bitf(CH7006_FFILTER_TEXT, flicker) |
+ bitf(CH7006_FFILTER_LUMA, flicker) |
+ bitf(CH7006_FFILTER_CHROMA, 1);
+
+ contrast = interpolate(0, 5, 7, priv->contrast);
+ regs[CH7006_CONTRAST] = bitf(CH7006_CONTRAST_0, contrast);
+
+ scale = norm->vtotal*fixed1;
+ do_div(scale, mode->vtotal);
+
+ aspect = ch_mode->enc_hdisp*fixed1;
+ do_div(aspect, ch_mode->enc_vdisp);
+
+ hpos = round_fixed((norm->hvirtual * aspect - mode->hdisplay * scale)
+ * priv->hmargin * mode->vtotal) / norm->vtotal / 100 / 4;
+
+ setbitf(state, CH7006_POV, HPOS_8, hpos);
+ setbitf(state, CH7006_HPOS, 0, hpos);
+
+ vpos = max(0, norm->vdisplay - round_fixed(mode->vdisplay*scale)
+ + norm->voffset) * priv->vmargin / 100 / 2;
+
+ setbitf(state, CH7006_POV, VPOS_8, vpos);
+ setbitf(state, CH7006_VPOS, 0, vpos);
+
+ ch7006_dbg(client, "hpos: %d, vpos: %d\n", hpos, vpos);
+}
+
+/* HW access functions */
+
+void ch7006_write(struct i2c_client *client, uint8_t addr, uint8_t val)
+{
+ uint8_t buf[] = {addr, val};
+ int ret;
+
+ ret = i2c_master_send(client, buf, ARRAY_SIZE(buf));
+ if (ret < 0)
+ ch7006_err(client, "Error %d writing to subaddress 0x%x\n",
+ ret, addr);
+}
+
+uint8_t ch7006_read(struct i2c_client *client, uint8_t addr)
+{
+ uint8_t val;
+ int ret;
+
+ ret = i2c_master_send(client, &addr, sizeof(addr));
+ if (ret < 0)
+ goto fail;
+
+ ret = i2c_master_recv(client, &val, sizeof(val));
+ if (ret < 0)
+ goto fail;
+
+ return val;
+
+fail:
+ ch7006_err(client, "Error %d reading from subaddress 0x%x\n",
+ ret, addr);
+ return 0;
+}
+
+void ch7006_state_load(struct i2c_client *client,
+ struct ch7006_state *state)
+{
+ ch7006_load_reg(client, state, CH7006_POWER);
+
+ ch7006_load_reg(client, state, CH7006_DISPMODE);
+ ch7006_load_reg(client, state, CH7006_FFILTER);
+ ch7006_load_reg(client, state, CH7006_BWIDTH);
+ ch7006_load_reg(client, state, CH7006_INPUT_FORMAT);
+ ch7006_load_reg(client, state, CH7006_CLKMODE);
+ ch7006_load_reg(client, state, CH7006_START_ACTIVE);
+ ch7006_load_reg(client, state, CH7006_POV);
+ ch7006_load_reg(client, state, CH7006_BLACK_LEVEL);
+ ch7006_load_reg(client, state, CH7006_HPOS);
+ ch7006_load_reg(client, state, CH7006_VPOS);
+ ch7006_load_reg(client, state, CH7006_INPUT_SYNC);
+ ch7006_load_reg(client, state, CH7006_DETECT);
+ ch7006_load_reg(client, state, CH7006_CONTRAST);
+ ch7006_load_reg(client, state, CH7006_PLLOV);
+ ch7006_load_reg(client, state, CH7006_PLLM);
+ ch7006_load_reg(client, state, CH7006_PLLN);
+ ch7006_load_reg(client, state, CH7006_BCLKOUT);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC0);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC1);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC2);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC3);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC4);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC5);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC6);
+ ch7006_load_reg(client, state, CH7006_SUBC_INC7);
+ ch7006_load_reg(client, state, CH7006_PLL_CONTROL);
+ ch7006_load_reg(client, state, CH7006_CALC_SUBC_INC0);
+}
+
+void ch7006_state_save(struct i2c_client *client,
+ struct ch7006_state *state)
+{
+ ch7006_save_reg(client, state, CH7006_POWER);
+
+ ch7006_save_reg(client, state, CH7006_DISPMODE);
+ ch7006_save_reg(client, state, CH7006_FFILTER);
+ ch7006_save_reg(client, state, CH7006_BWIDTH);
+ ch7006_save_reg(client, state, CH7006_INPUT_FORMAT);
+ ch7006_save_reg(client, state, CH7006_CLKMODE);
+ ch7006_save_reg(client, state, CH7006_START_ACTIVE);
+ ch7006_save_reg(client, state, CH7006_POV);
+ ch7006_save_reg(client, state, CH7006_BLACK_LEVEL);
+ ch7006_save_reg(client, state, CH7006_HPOS);
+ ch7006_save_reg(client, state, CH7006_VPOS);
+ ch7006_save_reg(client, state, CH7006_INPUT_SYNC);
+ ch7006_save_reg(client, state, CH7006_DETECT);
+ ch7006_save_reg(client, state, CH7006_CONTRAST);
+ ch7006_save_reg(client, state, CH7006_PLLOV);
+ ch7006_save_reg(client, state, CH7006_PLLM);
+ ch7006_save_reg(client, state, CH7006_PLLN);
+ ch7006_save_reg(client, state, CH7006_BCLKOUT);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC0);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC1);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC2);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC3);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC4);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC5);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC6);
+ ch7006_save_reg(client, state, CH7006_SUBC_INC7);
+ ch7006_save_reg(client, state, CH7006_PLL_CONTROL);
+ ch7006_save_reg(client, state, CH7006_CALC_SUBC_INC0);
+
+ state->regs[CH7006_FFILTER] = (state->regs[CH7006_FFILTER] & 0xf0) |
+ (state->regs[CH7006_FFILTER] & 0x0c) >> 2 |
+ (state->regs[CH7006_FFILTER] & 0x03) << 2;
+}
diff --git a/drivers/gpu/drm/i2c/ch7006_priv.h b/drivers/gpu/drm/i2c/ch7006_priv.h
new file mode 100644
index 0000000..dc6414a
--- /dev/null
+++ b/drivers/gpu/drm/i2c/ch7006_priv.h
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __DRM_I2C_CH7006_PRIV_H__
+#define __DRM_I2C_CH7006_PRIV_H__
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder_slave.h>
+#include <drm/i2c/ch7006.h>
+
+typedef int64_t fixed;
+#define fixed1 (1LL << 32)
+
+enum ch7006_tv_norm {
+ TV_NORM_PAL,
+ TV_NORM_PAL_M,
+ TV_NORM_PAL_N,
+ TV_NORM_PAL_NC,
+ TV_NORM_PAL_60,
+ TV_NORM_NTSC_M,
+ TV_NORM_NTSC_J,
+ NUM_TV_NORMS
+};
+
+struct ch7006_tv_norm_info {
+ fixed vrefresh;
+ int vdisplay;
+ int vtotal;
+ int hvirtual;
+
+ fixed subc_freq;
+ fixed black_level;
+
+ uint32_t dispmode;
+ int voffset;
+};
+
+struct ch7006_mode {
+ struct drm_display_mode mode;
+
+ int enc_hdisp;
+ int enc_vdisp;
+
+ fixed subc_coeff;
+ uint32_t dispmode;
+
+ uint32_t valid_scales;
+ uint32_t valid_norms;
+};
+
+struct ch7006_state {
+ uint8_t regs[0x26];
+};
+
+struct ch7006_priv {
+ struct ch7006_encoder_params params;
+ const struct ch7006_mode *mode;
+
+ struct ch7006_state state;
+ struct ch7006_state saved_state;
+
+ struct drm_property *scale_property;
+
+ int select_subconnector;
+ int subconnector;
+ int hmargin;
+ int vmargin;
+ enum ch7006_tv_norm norm;
+ int brightness;
+ int contrast;
+ int flicker;
+ int scale;
+
+ int chip_version;
+ int last_dpms;
+};
+
+#define to_ch7006_priv(x) \
+ ((struct ch7006_priv *)to_encoder_slave(x)->slave_priv)
+
+extern int ch7006_debug;
+extern char *ch7006_tv_norm;
+extern int ch7006_scale;
+
+extern const char * const ch7006_tv_norm_names[];
+extern const struct ch7006_tv_norm_info ch7006_tv_norms[];
+extern const struct ch7006_mode ch7006_modes[];
+
+const struct ch7006_mode *ch7006_lookup_mode(struct drm_encoder *encoder,
+ const struct drm_display_mode *drm_mode);
+
+void ch7006_setup_levels(struct drm_encoder *encoder);
+void ch7006_setup_subcarrier(struct drm_encoder *encoder);
+void ch7006_setup_pll(struct drm_encoder *encoder);
+void ch7006_setup_power_state(struct drm_encoder *encoder);
+void ch7006_setup_properties(struct drm_encoder *encoder);
+
+void ch7006_write(struct i2c_client *client, uint8_t addr, uint8_t val);
+uint8_t ch7006_read(struct i2c_client *client, uint8_t addr);
+
+void ch7006_state_load(struct i2c_client *client,
+ struct ch7006_state *state);
+void ch7006_state_save(struct i2c_client *client,
+ struct ch7006_state *state);
+
+/* Some helper macros */
+
+#define ch7006_dbg(client, format, ...) do { \
+ if (ch7006_debug) \
+ dev_printk(KERN_DEBUG, &client->dev, \
+ "%s: " format, __func__, ## __VA_ARGS__); \
+ } while (0)
+#define ch7006_info(client, format, ...) \
+ dev_info(&client->dev, format, __VA_ARGS__)
+#define ch7006_err(client, format, ...) \
+ dev_err(&client->dev, format, __VA_ARGS__)
+
+#define __mask(src, bitfield) \
+ (((2 << (1 ? bitfield)) - 1) & ~((1 << (0 ? bitfield)) - 1))
+#define mask(bitfield) __mask(bitfield)
+
+#define __bitf(src, bitfield, x) \
+ (((x) >> (src) << (0 ? bitfield)) & __mask(src, bitfield))
+#define bitf(bitfield, x) __bitf(bitfield, x)
+#define bitfs(bitfield, s) __bitf(bitfield, bitfield##_##s)
+#define setbitf(state, reg, bitfield, x) \
+ state->regs[reg] = (state->regs[reg] & ~mask(reg##_##bitfield)) \
+ | bitf(reg##_##bitfield, x)
+
+#define __unbitf(src, bitfield, x) \
+ ((x & __mask(src, bitfield)) >> (0 ? bitfield) << (src))
+#define unbitf(bitfield, x) __unbitf(bitfield, x)
+
+static inline int interpolate(int y0, int y1, int y2, int x)
+{
+ return y1 + (x < 50 ? y1 - y0 : y2 - y1) * (x - 50) / 50;
+}
+
+static inline int32_t round_fixed(fixed x)
+{
+ return (x + fixed1/2) >> 32;
+}
+
+#define ch7006_load_reg(client, state, reg) ch7006_write(client, reg, state->regs[reg])
+#define ch7006_save_reg(client, state, reg) state->regs[reg] = ch7006_read(client, reg)
+
+/* Fixed hardware specs */
+
+#define CH7006_FREQ0 14318
+#define CH7006_MAXN 650
+#define CH7006_MAXM 315
+
+/* Register definitions */
+
+#define CH7006_DISPMODE 0x00
+#define CH7006_DISPMODE_INPUT_RES 0, 7:5
+#define CH7006_DISPMODE_INPUT_RES_512x384 0x0
+#define CH7006_DISPMODE_INPUT_RES_720x400 0x1
+#define CH7006_DISPMODE_INPUT_RES_640x400 0x2
+#define CH7006_DISPMODE_INPUT_RES_640x480 0x3
+#define CH7006_DISPMODE_INPUT_RES_800x600 0x4
+#define CH7006_DISPMODE_INPUT_RES_NATIVE 0x5
+#define CH7006_DISPMODE_OUTPUT_STD 0, 4:3
+#define CH7006_DISPMODE_OUTPUT_STD_PAL 0x0
+#define CH7006_DISPMODE_OUTPUT_STD_NTSC 0x1
+#define CH7006_DISPMODE_OUTPUT_STD_PAL_M 0x2
+#define CH7006_DISPMODE_OUTPUT_STD_NTSC_J 0x3
+#define CH7006_DISPMODE_SCALING_RATIO 0, 2:0
+#define CH7006_DISPMODE_SCALING_RATIO_5_4 0x0
+#define CH7006_DISPMODE_SCALING_RATIO_1_1 0x1
+#define CH7006_DISPMODE_SCALING_RATIO_7_8 0x2
+#define CH7006_DISPMODE_SCALING_RATIO_5_6 0x3
+#define CH7006_DISPMODE_SCALING_RATIO_3_4 0x4
+#define CH7006_DISPMODE_SCALING_RATIO_7_10 0x5
+
+#define CH7006_FFILTER 0x01
+#define CH7006_FFILTER_TEXT 0, 5:4
+#define CH7006_FFILTER_LUMA 0, 3:2
+#define CH7006_FFILTER_CHROMA 0, 1:0
+#define CH7006_FFILTER_CHROMA_NO_DCRAWL 0x3
+
+#define CH7006_BWIDTH 0x03
+#define CH7006_BWIDTH_5L_FFILER (1 << 7)
+#define CH7006_BWIDTH_CVBS_NO_CHROMA (1 << 6)
+#define CH7006_BWIDTH_CHROMA 0, 5:4
+#define CH7006_BWIDTH_SVIDEO_YPEAK (1 << 3)
+#define CH7006_BWIDTH_SVIDEO_LUMA 0, 2:1
+#define CH7006_BWIDTH_CVBS_LUMA 0, 0:0
+
+#define CH7006_INPUT_FORMAT 0x04
+#define CH7006_INPUT_FORMAT_DAC_GAIN (1 << 6)
+#define CH7006_INPUT_FORMAT_RGB_PASS_THROUGH (1 << 5)
+#define CH7006_INPUT_FORMAT_FORMAT 0, 3:0
+#define CH7006_INPUT_FORMAT_FORMAT_RGB16 0x0
+#define CH7006_INPUT_FORMAT_FORMAT_YCrCb24m16 0x1
+#define CH7006_INPUT_FORMAT_FORMAT_RGB24m16 0x2
+#define CH7006_INPUT_FORMAT_FORMAT_RGB15 0x3
+#define CH7006_INPUT_FORMAT_FORMAT_RGB24m12C 0x4
+#define CH7006_INPUT_FORMAT_FORMAT_RGB24m12I 0x5
+#define CH7006_INPUT_FORMAT_FORMAT_RGB24m8 0x6
+#define CH7006_INPUT_FORMAT_FORMAT_RGB16m8 0x7
+#define CH7006_INPUT_FORMAT_FORMAT_RGB15m8 0x8
+#define CH7006_INPUT_FORMAT_FORMAT_YCrCb24m8 0x9
+
+#define CH7006_CLKMODE 0x06
+#define CH7006_CLKMODE_SUBC_LOCK (1 << 7)
+#define CH7006_CLKMODE_MASTER (1 << 6)
+#define CH7006_CLKMODE_POS_EDGE (1 << 4)
+#define CH7006_CLKMODE_XCM 0, 3:2
+#define CH7006_CLKMODE_PCM 0, 1:0
+
+#define CH7006_START_ACTIVE 0x07
+#define CH7006_START_ACTIVE_0 0, 7:0
+
+#define CH7006_POV 0x08
+#define CH7006_POV_START_ACTIVE_8 8, 2:2
+#define CH7006_POV_HPOS_8 8, 1:1
+#define CH7006_POV_VPOS_8 8, 0:0
+
+#define CH7006_BLACK_LEVEL 0x09
+#define CH7006_BLACK_LEVEL_0 0, 7:0
+
+#define CH7006_HPOS 0x0a
+#define CH7006_HPOS_0 0, 7:0
+
+#define CH7006_VPOS 0x0b
+#define CH7006_VPOS_0 0, 7:0
+
+#define CH7006_INPUT_SYNC 0x0d
+#define CH7006_INPUT_SYNC_EMBEDDED (1 << 3)
+#define CH7006_INPUT_SYNC_OUTPUT (1 << 2)
+#define CH7006_INPUT_SYNC_PVSYNC (1 << 1)
+#define CH7006_INPUT_SYNC_PHSYNC (1 << 0)
+
+#define CH7006_POWER 0x0e
+#define CH7006_POWER_SCART (1 << 4)
+#define CH7006_POWER_RESET (1 << 3)
+#define CH7006_POWER_LEVEL 0, 2:0
+#define CH7006_POWER_LEVEL_CVBS_OFF 0x0
+#define CH7006_POWER_LEVEL_POWER_OFF 0x1
+#define CH7006_POWER_LEVEL_SVIDEO_OFF 0x2
+#define CH7006_POWER_LEVEL_NORMAL 0x3
+#define CH7006_POWER_LEVEL_FULL_POWER_OFF 0x4
+
+#define CH7006_DETECT 0x10
+#define CH7006_DETECT_SVIDEO_Y_TEST (1 << 3)
+#define CH7006_DETECT_SVIDEO_C_TEST (1 << 2)
+#define CH7006_DETECT_CVBS_TEST (1 << 1)
+#define CH7006_DETECT_SENSE (1 << 0)
+
+#define CH7006_CONTRAST 0x11
+#define CH7006_CONTRAST_0 0, 2:0
+
+#define CH7006_PLLOV 0x13
+#define CH7006_PLLOV_N_8 8, 2:1
+#define CH7006_PLLOV_M_8 8, 0:0
+
+#define CH7006_PLLM 0x14
+#define CH7006_PLLM_0 0, 7:0
+
+#define CH7006_PLLN 0x15
+#define CH7006_PLLN_0 0, 7:0
+
+#define CH7006_BCLKOUT 0x17
+
+#define CH7006_SUBC_INC0 0x18
+#define CH7006_SUBC_INC0_28 28, 3:0
+
+#define CH7006_SUBC_INC1 0x19
+#define CH7006_SUBC_INC1_24 24, 3:0
+
+#define CH7006_SUBC_INC2 0x1a
+#define CH7006_SUBC_INC2_20 20, 3:0
+
+#define CH7006_SUBC_INC3 0x1b
+#define CH7006_SUBC_INC3_GPIO1_VAL (1 << 7)
+#define CH7006_SUBC_INC3_GPIO0_VAL (1 << 6)
+#define CH7006_SUBC_INC3_POUT_3_3V (1 << 5)
+#define CH7006_SUBC_INC3_POUT_INV (1 << 4)
+#define CH7006_SUBC_INC3_16 16, 3:0
+
+#define CH7006_SUBC_INC4 0x1c
+#define CH7006_SUBC_INC4_GPIO1_IN (1 << 7)
+#define CH7006_SUBC_INC4_GPIO0_IN (1 << 6)
+#define CH7006_SUBC_INC4_DS_INPUT (1 << 4)
+#define CH7006_SUBC_INC4_12 12, 3:0
+
+#define CH7006_SUBC_INC5 0x1d
+#define CH7006_SUBC_INC5_8 8, 3:0
+
+#define CH7006_SUBC_INC6 0x1e
+#define CH7006_SUBC_INC6_4 4, 3:0
+
+#define CH7006_SUBC_INC7 0x1f
+#define CH7006_SUBC_INC7_0 0, 3:0
+
+#define CH7006_PLL_CONTROL 0x20
+#define CH7006_PLL_CONTROL_CPI (1 << 5)
+#define CH7006_PLL_CONTROL_CAPACITOR (1 << 4)
+#define CH7006_PLL_CONTROL_7STAGES (1 << 3)
+#define CH7006_PLL_CONTROL_DIGITAL_5V (1 << 2)
+#define CH7006_PLL_CONTROL_ANALOG_5V (1 << 1)
+#define CH7006_PLL_CONTROL_MEMORY_5V (1 << 0)
+
+#define CH7006_CALC_SUBC_INC0 0x21
+#define CH7006_CALC_SUBC_INC0_24 24, 4:3
+#define CH7006_CALC_SUBC_INC0_HYST 0, 2:1
+#define CH7006_CALC_SUBC_INC0_AUTO (1 << 0)
+
+#define CH7006_CALC_SUBC_INC1 0x22
+#define CH7006_CALC_SUBC_INC1_16 16, 7:0
+
+#define CH7006_CALC_SUBC_INC2 0x23
+#define CH7006_CALC_SUBC_INC2_8 8, 7:0
+
+#define CH7006_CALC_SUBC_INC3 0x24
+#define CH7006_CALC_SUBC_INC3_0 0, 7:0
+
+#define CH7006_VERSION_ID 0x25
+
+#endif
diff --git a/drivers/gpu/drm/i2c/sil164_drv.c b/drivers/gpu/drm/i2c/sil164_drv.c
new file mode 100644
index 0000000..c52d7a3
--- /dev/null
+++ b/drivers/gpu/drm/i2c/sil164_drv.c
@@ -0,0 +1,454 @@
+/*
+ * Copyright (C) 2010 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_encoder_slave.h>
+#include <drm/i2c/sil164.h>
+
+struct sil164_priv {
+ struct sil164_encoder_params config;
+ struct i2c_client *duallink_slave;
+
+ uint8_t saved_state[0x10];
+ uint8_t saved_slave_state[0x10];
+};
+
+#define to_sil164_priv(x) \
+ ((struct sil164_priv *)to_encoder_slave(x)->slave_priv)
+
+#define sil164_dbg(client, format, ...) do { \
+ if (drm_debug & DRM_UT_KMS) \
+ dev_printk(KERN_DEBUG, &client->dev, \
+ "%s: " format, __func__, ## __VA_ARGS__); \
+ } while (0)
+#define sil164_info(client, format, ...) \
+ dev_info(&client->dev, format, __VA_ARGS__)
+#define sil164_err(client, format, ...) \
+ dev_err(&client->dev, format, __VA_ARGS__)
+
+#define SIL164_I2C_ADDR_MASTER 0x38
+#define SIL164_I2C_ADDR_SLAVE 0x39
+
+/* HW register definitions */
+
+#define SIL164_VENDOR_LO 0x0
+#define SIL164_VENDOR_HI 0x1
+#define SIL164_DEVICE_LO 0x2
+#define SIL164_DEVICE_HI 0x3
+#define SIL164_REVISION 0x4
+#define SIL164_FREQ_MIN 0x6
+#define SIL164_FREQ_MAX 0x7
+#define SIL164_CONTROL0 0x8
+# define SIL164_CONTROL0_POWER_ON 0x01
+# define SIL164_CONTROL0_EDGE_RISING 0x02
+# define SIL164_CONTROL0_INPUT_24BIT 0x04
+# define SIL164_CONTROL0_DUAL_EDGE 0x08
+# define SIL164_CONTROL0_HSYNC_ON 0x10
+# define SIL164_CONTROL0_VSYNC_ON 0x20
+#define SIL164_DETECT 0x9
+# define SIL164_DETECT_INTR_STAT 0x01
+# define SIL164_DETECT_HOTPLUG_STAT 0x02
+# define SIL164_DETECT_RECEIVER_STAT 0x04
+# define SIL164_DETECT_INTR_MODE_RECEIVER 0x00
+# define SIL164_DETECT_INTR_MODE_HOTPLUG 0x08
+# define SIL164_DETECT_OUT_MODE_HIGH 0x00
+# define SIL164_DETECT_OUT_MODE_INTR 0x10
+# define SIL164_DETECT_OUT_MODE_RECEIVER 0x20
+# define SIL164_DETECT_OUT_MODE_HOTPLUG 0x30
+# define SIL164_DETECT_VSWING_STAT 0x80
+#define SIL164_CONTROL1 0xa
+# define SIL164_CONTROL1_DESKEW_ENABLE 0x10
+# define SIL164_CONTROL1_DESKEW_INCR_SHIFT 5
+#define SIL164_GPIO 0xb
+#define SIL164_CONTROL2 0xc
+# define SIL164_CONTROL2_FILTER_ENABLE 0x01
+# define SIL164_CONTROL2_FILTER_SETTING_SHIFT 1
+# define SIL164_CONTROL2_DUALLINK_MASTER 0x40
+# define SIL164_CONTROL2_SYNC_CONT 0x80
+#define SIL164_DUALLINK 0xd
+# define SIL164_DUALLINK_ENABLE 0x10
+# define SIL164_DUALLINK_SKEW_SHIFT 5
+#define SIL164_PLLZONE 0xe
+# define SIL164_PLLZONE_STAT 0x08
+# define SIL164_PLLZONE_FORCE_ON 0x10
+# define SIL164_PLLZONE_FORCE_HIGH 0x20
+
+/* HW access functions */
+
+static void
+sil164_write(struct i2c_client *client, uint8_t addr, uint8_t val)
+{
+ uint8_t buf[] = {addr, val};
+ int ret;
+
+ ret = i2c_master_send(client, buf, ARRAY_SIZE(buf));
+ if (ret < 0)
+ sil164_err(client, "Error %d writing to subaddress 0x%x\n",
+ ret, addr);
+}
+
+static uint8_t
+sil164_read(struct i2c_client *client, uint8_t addr)
+{
+ uint8_t val;
+ int ret;
+
+ ret = i2c_master_send(client, &addr, sizeof(addr));
+ if (ret < 0)
+ goto fail;
+
+ ret = i2c_master_recv(client, &val, sizeof(val));
+ if (ret < 0)
+ goto fail;
+
+ return val;
+
+fail:
+ sil164_err(client, "Error %d reading from subaddress 0x%x\n",
+ ret, addr);
+ return 0;
+}
+
+static void
+sil164_save_state(struct i2c_client *client, uint8_t *state)
+{
+ int i;
+
+ for (i = 0x8; i <= 0xe; i++)
+ state[i] = sil164_read(client, i);
+}
+
+static void
+sil164_restore_state(struct i2c_client *client, uint8_t *state)
+{
+ int i;
+
+ for (i = 0x8; i <= 0xe; i++)
+ sil164_write(client, i, state[i]);
+}
+
+static void
+sil164_set_power_state(struct i2c_client *client, bool on)
+{
+ uint8_t control0 = sil164_read(client, SIL164_CONTROL0);
+
+ if (on)
+ control0 |= SIL164_CONTROL0_POWER_ON;
+ else
+ control0 &= ~SIL164_CONTROL0_POWER_ON;
+
+ sil164_write(client, SIL164_CONTROL0, control0);
+}
+
+static void
+sil164_init_state(struct i2c_client *client,
+ struct sil164_encoder_params *config,
+ bool duallink)
+{
+ sil164_write(client, SIL164_CONTROL0,
+ SIL164_CONTROL0_HSYNC_ON |
+ SIL164_CONTROL0_VSYNC_ON |
+ (config->input_edge ? SIL164_CONTROL0_EDGE_RISING : 0) |
+ (config->input_width ? SIL164_CONTROL0_INPUT_24BIT : 0) |
+ (config->input_dual ? SIL164_CONTROL0_DUAL_EDGE : 0));
+
+ sil164_write(client, SIL164_DETECT,
+ SIL164_DETECT_INTR_STAT |
+ SIL164_DETECT_OUT_MODE_RECEIVER);
+
+ sil164_write(client, SIL164_CONTROL1,
+ (config->input_skew ? SIL164_CONTROL1_DESKEW_ENABLE : 0) |
+ (((config->input_skew + 4) & 0x7)
+ << SIL164_CONTROL1_DESKEW_INCR_SHIFT));
+
+ sil164_write(client, SIL164_CONTROL2,
+ SIL164_CONTROL2_SYNC_CONT |
+ (config->pll_filter ? 0 : SIL164_CONTROL2_FILTER_ENABLE) |
+ (4 << SIL164_CONTROL2_FILTER_SETTING_SHIFT));
+
+ sil164_write(client, SIL164_PLLZONE, 0);
+
+ if (duallink)
+ sil164_write(client, SIL164_DUALLINK,
+ SIL164_DUALLINK_ENABLE |
+ (((config->duallink_skew + 4) & 0x7)
+ << SIL164_DUALLINK_SKEW_SHIFT));
+ else
+ sil164_write(client, SIL164_DUALLINK, 0);
+}
+
+/* DRM encoder functions */
+
+static void
+sil164_encoder_set_config(struct drm_encoder *encoder, void *params)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+
+ priv->config = *(struct sil164_encoder_params *)params;
+}
+
+static void
+sil164_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+ bool on = (mode == DRM_MODE_DPMS_ON);
+ bool duallink = (on && encoder->crtc->mode.clock > 165000);
+
+ sil164_set_power_state(drm_i2c_encoder_get_client(encoder), on);
+
+ if (priv->duallink_slave)
+ sil164_set_power_state(priv->duallink_slave, duallink);
+}
+
+static void
+sil164_encoder_save(struct drm_encoder *encoder)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+
+ sil164_save_state(drm_i2c_encoder_get_client(encoder),
+ priv->saved_state);
+
+ if (priv->duallink_slave)
+ sil164_save_state(priv->duallink_slave,
+ priv->saved_slave_state);
+}
+
+static void
+sil164_encoder_restore(struct drm_encoder *encoder)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+
+ sil164_restore_state(drm_i2c_encoder_get_client(encoder),
+ priv->saved_state);
+
+ if (priv->duallink_slave)
+ sil164_restore_state(priv->duallink_slave,
+ priv->saved_slave_state);
+}
+
+static int
+sil164_encoder_mode_valid(struct drm_encoder *encoder,
+ struct drm_display_mode *mode)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+
+ if (mode->clock < 32000)
+ return MODE_CLOCK_LOW;
+
+ if (mode->clock > 330000 ||
+ (mode->clock > 165000 && !priv->duallink_slave))
+ return MODE_CLOCK_HIGH;
+
+ return MODE_OK;
+}
+
+static void
+sil164_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+ bool duallink = adjusted_mode->clock > 165000;
+
+ sil164_init_state(drm_i2c_encoder_get_client(encoder),
+ &priv->config, duallink);
+
+ if (priv->duallink_slave)
+ sil164_init_state(priv->duallink_slave,
+ &priv->config, duallink);
+
+ sil164_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static enum drm_connector_status
+sil164_encoder_detect(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
+
+ if (sil164_read(client, SIL164_DETECT) & SIL164_DETECT_HOTPLUG_STAT)
+ return connector_status_connected;
+ else
+ return connector_status_disconnected;
+}
+
+static int
+sil164_encoder_get_modes(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ return 0;
+}
+
+static int
+sil164_encoder_create_resources(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ return 0;
+}
+
+static int
+sil164_encoder_set_property(struct drm_encoder *encoder,
+ struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t val)
+{
+ return 0;
+}
+
+static void
+sil164_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct sil164_priv *priv = to_sil164_priv(encoder);
+
+ i2c_unregister_device(priv->duallink_slave);
+
+ kfree(priv);
+ drm_i2c_encoder_destroy(encoder);
+}
+
+static const struct drm_encoder_slave_funcs sil164_encoder_funcs = {
+ .set_config = sil164_encoder_set_config,
+ .destroy = sil164_encoder_destroy,
+ .dpms = sil164_encoder_dpms,
+ .save = sil164_encoder_save,
+ .restore = sil164_encoder_restore,
+ .mode_valid = sil164_encoder_mode_valid,
+ .mode_set = sil164_encoder_mode_set,
+ .detect = sil164_encoder_detect,
+ .get_modes = sil164_encoder_get_modes,
+ .create_resources = sil164_encoder_create_resources,
+ .set_property = sil164_encoder_set_property,
+};
+
+/* I2C driver functions */
+
+static int
+sil164_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ int vendor = sil164_read(client, SIL164_VENDOR_HI) << 8 |
+ sil164_read(client, SIL164_VENDOR_LO);
+ int device = sil164_read(client, SIL164_DEVICE_HI) << 8 |
+ sil164_read(client, SIL164_DEVICE_LO);
+ int rev = sil164_read(client, SIL164_REVISION);
+
+ if (vendor != 0x1 || device != 0x6) {
+ sil164_dbg(client, "Unknown device %x:%x.%x\n",
+ vendor, device, rev);
+ return -ENODEV;
+ }
+
+ sil164_info(client, "Detected device %x:%x.%x\n",
+ vendor, device, rev);
+
+ return 0;
+}
+
+static int
+sil164_remove(struct i2c_client *client)
+{
+ return 0;
+}
+
+static struct i2c_client *
+sil164_detect_slave(struct i2c_client *client)
+{
+ struct i2c_adapter *adap = client->adapter;
+ struct i2c_msg msg = {
+ .addr = SIL164_I2C_ADDR_SLAVE,
+ .len = 0,
+ };
+ const struct i2c_board_info info = {
+ I2C_BOARD_INFO("sil164", SIL164_I2C_ADDR_SLAVE)
+ };
+
+ if (i2c_transfer(adap, &msg, 1) != 1) {
+ sil164_dbg(adap, "No dual-link slave found.");
+ return NULL;
+ }
+
+ return i2c_new_device(adap, &info);
+}
+
+static int
+sil164_encoder_init(struct i2c_client *client,
+ struct drm_device *dev,
+ struct drm_encoder_slave *encoder)
+{
+ struct sil164_priv *priv;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ encoder->slave_priv = priv;
+ encoder->slave_funcs = &sil164_encoder_funcs;
+
+ priv->duallink_slave = sil164_detect_slave(client);
+
+ return 0;
+}
+
+static const struct i2c_device_id sil164_ids[] = {
+ { "sil164", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, sil164_ids);
+
+static struct drm_i2c_encoder_driver sil164_driver = {
+ .i2c_driver = {
+ .probe = sil164_probe,
+ .remove = sil164_remove,
+ .driver = {
+ .name = "sil164",
+ },
+ .id_table = sil164_ids,
+ },
+ .encoder_init = sil164_encoder_init,
+};
+
+/* Module initialization */
+
+static int __init
+sil164_init(void)
+{
+ return drm_i2c_encoder_register(THIS_MODULE, &sil164_driver);
+}
+
+static void __exit
+sil164_exit(void)
+{
+ drm_i2c_encoder_unregister(&sil164_driver);
+}
+
+MODULE_AUTHOR("Francisco Jerez <currojerez@riseup.net>");
+MODULE_DESCRIPTION("Silicon Image sil164 TMDS transmitter driver");
+MODULE_LICENSE("GPL and additional rights");
+
+module_init(sil164_init);
+module_exit(sil164_exit);
diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
new file mode 100644
index 0000000..250b5e0
--- /dev/null
+++ b/drivers/gpu/drm/i2c/tda9950.c
@@ -0,0 +1,513 @@
+/*
+ * TDA9950 Consumer Electronics Control driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * The NXP TDA9950 implements the HDMI Consumer Electronics Control
+ * interface. The host interface is similar to a mailbox: the data
+ * registers starting at REG_CDR0 are written to send a command to the
+ * internal CPU, and replies are read from these registers.
+ *
+ * As the data registers represent a mailbox, they must be accessed
+ * as a single I2C transaction. See the TDA9950 data sheet for details.
+ */
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_data/tda9950.h>
+#include <linux/slab.h>
+#include <drm/drm_edid.h>
+#include <media/cec.h>
+#include <media/cec-notifier.h>
+
+enum {
+ REG_CSR = 0x00,
+ CSR_BUSY = BIT(7),
+ CSR_INT = BIT(6),
+ CSR_ERR = BIT(5),
+
+ REG_CER = 0x01,
+
+ REG_CVR = 0x02,
+
+ REG_CCR = 0x03,
+ CCR_RESET = BIT(7),
+ CCR_ON = BIT(6),
+
+ REG_ACKH = 0x04,
+ REG_ACKL = 0x05,
+
+ REG_CCONR = 0x06,
+ CCONR_ENABLE_ERROR = BIT(4),
+ CCONR_RETRY_MASK = 7,
+
+ REG_CDR0 = 0x07,
+
+ CDR1_REQ = 0x00,
+ CDR1_CNF = 0x01,
+ CDR1_IND = 0x81,
+ CDR1_ERR = 0x82,
+ CDR1_IER = 0x83,
+
+ CDR2_CNF_SUCCESS = 0x00,
+ CDR2_CNF_OFF_STATE = 0x80,
+ CDR2_CNF_BAD_REQ = 0x81,
+ CDR2_CNF_CEC_ACCESS = 0x82,
+ CDR2_CNF_ARB_ERROR = 0x83,
+ CDR2_CNF_BAD_TIMING = 0x84,
+ CDR2_CNF_NACK_ADDR = 0x85,
+ CDR2_CNF_NACK_DATA = 0x86,
+};
+
+struct tda9950_priv {
+ struct i2c_client *client;
+ struct device *hdmi;
+ struct cec_adapter *adap;
+ struct tda9950_glue *glue;
+ u16 addresses;
+ struct cec_msg rx_msg;
+ struct cec_notifier *notify;
+ bool open;
+};
+
+static int tda9950_write_range(struct i2c_client *client, u8 addr, u8 *p, int cnt)
+{
+ struct i2c_msg msg;
+ u8 buf[CEC_MAX_MSG_SIZE + 3];
+ int ret;
+
+ if (WARN_ON(cnt > sizeof(buf) - 1))
+ return -EINVAL;
+
+ buf[0] = addr;
+ memcpy(buf + 1, p, cnt);
+
+ msg.addr = client->addr;
+ msg.flags = 0;
+ msg.len = cnt + 1;
+ msg.buf = buf;
+
+ dev_dbg(&client->dev, "wr 0x%02x: %*ph\n", addr, cnt, p);
+
+ ret = i2c_transfer(client->adapter, &msg, 1);
+ if (ret < 0)
+ dev_err(&client->dev, "Error %d writing to cec:0x%x\n", ret, addr);
+ return ret < 0 ? ret : 0;
+}
+
+static void tda9950_write(struct i2c_client *client, u8 addr, u8 val)
+{
+ tda9950_write_range(client, addr, &val, 1);
+}
+
+static int tda9950_read_range(struct i2c_client *client, u8 addr, u8 *p, int cnt)
+{
+ struct i2c_msg msg[2];
+ int ret;
+
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].len = 1;
+ msg[0].buf = &addr;
+ msg[1].addr = client->addr;
+ msg[1].flags = I2C_M_RD;
+ msg[1].len = cnt;
+ msg[1].buf = p;
+
+ ret = i2c_transfer(client->adapter, msg, 2);
+ if (ret < 0)
+ dev_err(&client->dev, "Error %d reading from cec:0x%x\n", ret, addr);
+
+ dev_dbg(&client->dev, "rd 0x%02x: %*ph\n", addr, cnt, p);
+
+ return ret;
+}
+
+static u8 tda9950_read(struct i2c_client *client, u8 addr)
+{
+ int ret;
+ u8 val;
+
+ ret = tda9950_read_range(client, addr, &val, 1);
+ if (ret < 0)
+ val = 0;
+
+ return val;
+}
+
+static irqreturn_t tda9950_irq(int irq, void *data)
+{
+ struct tda9950_priv *priv = data;
+ unsigned int tx_status;
+ u8 csr, cconr, buf[19];
+ u8 arb_lost_cnt, nack_cnt, err_cnt;
+
+ if (!priv->open)
+ return IRQ_NONE;
+
+ csr = tda9950_read(priv->client, REG_CSR);
+ if (!(csr & CSR_INT))
+ return IRQ_NONE;
+
+ cconr = tda9950_read(priv->client, REG_CCONR) & CCONR_RETRY_MASK;
+
+ tda9950_read_range(priv->client, REG_CDR0, buf, sizeof(buf));
+
+ /*
+ * This should never happen: the data sheet says that there will
+ * always be a valid message if the interrupt line is asserted.
+ */
+ if (buf[0] == 0) {
+ dev_warn(&priv->client->dev, "interrupt pending, but no message?\n");
+ return IRQ_NONE;
+ }
+
+ switch (buf[1]) {
+ case CDR1_CNF: /* transmit result */
+ arb_lost_cnt = nack_cnt = err_cnt = 0;
+ switch (buf[2]) {
+ case CDR2_CNF_SUCCESS:
+ tx_status = CEC_TX_STATUS_OK;
+ break;
+
+ case CDR2_CNF_ARB_ERROR:
+ tx_status = CEC_TX_STATUS_ARB_LOST;
+ arb_lost_cnt = cconr;
+ break;
+
+ case CDR2_CNF_NACK_ADDR:
+ tx_status = CEC_TX_STATUS_NACK;
+ nack_cnt = cconr;
+ break;
+
+ default: /* some other error, refer to TDA9950 docs */
+ dev_err(&priv->client->dev, "CNF reply error 0x%02x\n",
+ buf[2]);
+ tx_status = CEC_TX_STATUS_ERROR;
+ err_cnt = cconr;
+ break;
+ }
+ /* TDA9950 executes all retries for us */
+ if (tx_status != CEC_TX_STATUS_OK)
+ tx_status |= CEC_TX_STATUS_MAX_RETRIES;
+ cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
+ nack_cnt, 0, err_cnt);
+ break;
+
+ case CDR1_IND:
+ priv->rx_msg.len = buf[0] - 2;
+ if (priv->rx_msg.len > CEC_MAX_MSG_SIZE)
+ priv->rx_msg.len = CEC_MAX_MSG_SIZE;
+
+ memcpy(priv->rx_msg.msg, buf + 2, priv->rx_msg.len);
+ cec_received_msg(priv->adap, &priv->rx_msg);
+ break;
+
+ default: /* unknown */
+ dev_err(&priv->client->dev, "unknown service id 0x%02x\n",
+ buf[1]);
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int tda9950_cec_transmit(struct cec_adapter *adap, u8 attempts,
+ u32 signal_free_time, struct cec_msg *msg)
+{
+ struct tda9950_priv *priv = adap->priv;
+ u8 buf[CEC_MAX_MSG_SIZE + 2];
+
+ buf[0] = 2 + msg->len;
+ buf[1] = CDR1_REQ;
+ memcpy(buf + 2, msg->msg, msg->len);
+
+ if (attempts > 5)
+ attempts = 5;
+
+ tda9950_write(priv->client, REG_CCONR, attempts);
+
+ return tda9950_write_range(priv->client, REG_CDR0, buf, 2 + msg->len);
+}
+
+static int tda9950_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
+{
+ struct tda9950_priv *priv = adap->priv;
+ u16 addresses;
+ u8 buf[2];
+
+ if (addr == CEC_LOG_ADDR_INVALID)
+ addresses = priv->addresses = 0;
+ else
+ addresses = priv->addresses |= BIT(addr);
+
+ /* TDA9950 doesn't want address 15 set */
+ addresses &= 0x7fff;
+ buf[0] = addresses >> 8;
+ buf[1] = addresses;
+
+ return tda9950_write_range(priv->client, REG_ACKH, buf, 2);
+}
+
+/*
+ * When operating as part of the TDA998x, we need additional handling
+ * to initialise and shut down the TDA9950 part of the device. These
+ * two hooks are provided to allow the TDA998x code to perform those
+ * activities.
+ */
+static int tda9950_glue_open(struct tda9950_priv *priv)
+{
+ int ret = 0;
+
+ if (priv->glue && priv->glue->open)
+ ret = priv->glue->open(priv->glue->data);
+
+ priv->open = true;
+
+ return ret;
+}
+
+static void tda9950_glue_release(struct tda9950_priv *priv)
+{
+ priv->open = false;
+
+ if (priv->glue && priv->glue->release)
+ priv->glue->release(priv->glue->data);
+}
+
+static int tda9950_open(struct tda9950_priv *priv)
+{
+ struct i2c_client *client = priv->client;
+ int ret;
+
+ ret = tda9950_glue_open(priv);
+ if (ret)
+ return ret;
+
+ /* Reset the TDA9950, and wait 250ms for it to recover */
+ tda9950_write(client, REG_CCR, CCR_RESET);
+ msleep(250);
+
+ tda9950_cec_adap_log_addr(priv->adap, CEC_LOG_ADDR_INVALID);
+
+ /* Start the command processor */
+ tda9950_write(client, REG_CCR, CCR_ON);
+
+ return 0;
+}
+
+static void tda9950_release(struct tda9950_priv *priv)
+{
+ struct i2c_client *client = priv->client;
+ int timeout = 50;
+ u8 csr;
+
+ /* Stop the command processor */
+ tda9950_write(client, REG_CCR, 0);
+
+ /* Wait up to .5s for it to signal non-busy */
+ do {
+ csr = tda9950_read(client, REG_CSR);
+ if (!(csr & CSR_BUSY) || !--timeout)
+ break;
+ msleep(10);
+ } while (1);
+
+ /* Warn the user that their IRQ may die if it's shared. */
+ if (csr & CSR_BUSY)
+ dev_warn(&client->dev, "command processor failed to stop, irq%d may die (csr=0x%02x)\n",
+ client->irq, csr);
+
+ tda9950_glue_release(priv);
+}
+
+static int tda9950_cec_adap_enable(struct cec_adapter *adap, bool enable)
+{
+ struct tda9950_priv *priv = adap->priv;
+
+ if (!enable) {
+ tda9950_release(priv);
+ return 0;
+ } else {
+ return tda9950_open(priv);
+ }
+}
+
+static const struct cec_adap_ops tda9950_cec_ops = {
+ .adap_enable = tda9950_cec_adap_enable,
+ .adap_log_addr = tda9950_cec_adap_log_addr,
+ .adap_transmit = tda9950_cec_transmit,
+};
+
+/*
+ * When operating as part of the TDA998x, we need to claim additional
+ * resources. These two hooks permit the management of those resources.
+ */
+static void tda9950_devm_glue_exit(void *data)
+{
+ struct tda9950_glue *glue = data;
+
+ if (glue && glue->exit)
+ glue->exit(glue->data);
+}
+
+static int tda9950_devm_glue_init(struct device *dev, struct tda9950_glue *glue)
+{
+ int ret;
+
+ if (glue && glue->init) {
+ ret = glue->init(glue->data);
+ if (ret)
+ return ret;
+ }
+
+ ret = devm_add_action(dev, tda9950_devm_glue_exit, glue);
+ if (ret)
+ tda9950_devm_glue_exit(glue);
+
+ return ret;
+}
+
+static void tda9950_cec_del(void *data)
+{
+ struct tda9950_priv *priv = data;
+
+ cec_delete_adapter(priv->adap);
+}
+
+static int tda9950_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tda9950_glue *glue = client->dev.platform_data;
+ struct device *dev = &client->dev;
+ struct tda9950_priv *priv;
+ unsigned long irqflags;
+ int ret;
+ u8 cvr;
+
+ /*
+ * We must have I2C functionality: our multi-byte accesses
+ * must be performed as a single contiguous transaction.
+ */
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev,
+ "adapter does not support I2C functionality\n");
+ return -ENXIO;
+ }
+
+ /* We must have an interrupt to be functional. */
+ if (client->irq <= 0) {
+ dev_err(&client->dev, "driver requires an interrupt\n");
+ return -ENXIO;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->client = client;
+ priv->glue = glue;
+
+ i2c_set_clientdata(client, priv);
+
+ /*
+ * If we're part of a TDA998x, we want the class devices to be
+ * associated with the HDMI Tx so we have a tight relationship
+ * between the HDMI interface and the CEC interface.
+ */
+ priv->hdmi = dev;
+ if (glue && glue->parent)
+ priv->hdmi = glue->parent;
+
+ priv->adap = cec_allocate_adapter(&tda9950_cec_ops, priv, "tda9950",
+ CEC_CAP_DEFAULTS,
+ CEC_MAX_LOG_ADDRS);
+ if (IS_ERR(priv->adap))
+ return PTR_ERR(priv->adap);
+
+ ret = devm_add_action(dev, tda9950_cec_del, priv);
+ if (ret) {
+ cec_delete_adapter(priv->adap);
+ return ret;
+ }
+
+ ret = tda9950_devm_glue_init(dev, glue);
+ if (ret)
+ return ret;
+
+ ret = tda9950_glue_open(priv);
+ if (ret)
+ return ret;
+
+ cvr = tda9950_read(client, REG_CVR);
+
+ dev_info(&client->dev,
+ "TDA9950 CEC interface, hardware version %u.%u\n",
+ cvr >> 4, cvr & 15);
+
+ tda9950_glue_release(priv);
+
+ irqflags = IRQF_TRIGGER_FALLING;
+ if (glue)
+ irqflags = glue->irq_flags;
+
+ ret = devm_request_threaded_irq(dev, client->irq, NULL, tda9950_irq,
+ irqflags | IRQF_SHARED | IRQF_ONESHOT,
+ dev_name(&client->dev), priv);
+ if (ret < 0)
+ return ret;
+
+ priv->notify = cec_notifier_get(priv->hdmi);
+ if (!priv->notify)
+ return -ENOMEM;
+
+ ret = cec_register_adapter(priv->adap, priv->hdmi);
+ if (ret < 0) {
+ cec_notifier_put(priv->notify);
+ return ret;
+ }
+
+ /*
+ * CEC documentation says we must not call cec_delete_adapter
+ * after a successful call to cec_register_adapter().
+ */
+ devm_remove_action(dev, tda9950_cec_del, priv);
+
+ cec_register_cec_notifier(priv->adap, priv->notify);
+
+ return 0;
+}
+
+static int tda9950_remove(struct i2c_client *client)
+{
+ struct tda9950_priv *priv = i2c_get_clientdata(client);
+
+ cec_unregister_adapter(priv->adap);
+ cec_notifier_put(priv->notify);
+
+ return 0;
+}
+
+static struct i2c_device_id tda9950_ids[] = {
+ { "tda9950", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, tda9950_ids);
+
+static struct i2c_driver tda9950_driver = {
+ .probe = tda9950_probe,
+ .remove = tda9950_remove,
+ .driver = {
+ .name = "tda9950",
+ },
+ .id_table = tda9950_ids,
+};
+
+module_i2c_driver(tda9950_driver);
+
+MODULE_AUTHOR("Russell King <rmk+kernel@armlinux.org.uk>");
+MODULE_DESCRIPTION("TDA9950/TDA998x Consumer Electronics Control Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
new file mode 100644
index 0000000..a7c39f3
--- /dev/null
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -0,0 +1,1969 @@
+/*
+ * Copyright (C) 2012 Texas Instruments
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/component.h>
+#include <linux/gpio/consumer.h>
+#include <linux/hdmi.h>
+#include <linux/module.h>
+#include <linux/platform_data/tda9950.h>
+#include <linux/irq.h>
+#include <sound/asoundef.h>
+#include <sound/hdmi-codec.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_of.h>
+#include <drm/i2c/tda998x.h>
+
+#include <media/cec-notifier.h>
+
+#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
+
+struct tda998x_audio_port {
+ u8 format; /* AFMT_xxx */
+ u8 config; /* AP value */
+};
+
+struct tda998x_priv {
+ struct i2c_client *cec;
+ struct i2c_client *hdmi;
+ struct mutex mutex;
+ u16 rev;
+ u8 cec_addr;
+ u8 current_page;
+ bool is_on;
+ bool supports_infoframes;
+ bool sink_has_audio;
+ u8 vip_cntrl_0;
+ u8 vip_cntrl_1;
+ u8 vip_cntrl_2;
+ unsigned long tmds_clock;
+ struct tda998x_audio_params audio_params;
+
+ struct platform_device *audio_pdev;
+ struct mutex audio_mutex;
+
+ struct mutex edid_mutex;
+ wait_queue_head_t wq_edid;
+ volatile int wq_edid_wait;
+
+ struct work_struct detect_work;
+ struct timer_list edid_delay_timer;
+ wait_queue_head_t edid_delay_waitq;
+ bool edid_delay_active;
+
+ struct drm_encoder encoder;
+ struct drm_bridge bridge;
+ struct drm_connector connector;
+
+ struct tda998x_audio_port audio_port[2];
+ struct tda9950_glue cec_glue;
+ struct gpio_desc *calib;
+ struct cec_notifier *cec_notify;
+};
+
+#define conn_to_tda998x_priv(x) \
+ container_of(x, struct tda998x_priv, connector)
+#define enc_to_tda998x_priv(x) \
+ container_of(x, struct tda998x_priv, encoder)
+#define bridge_to_tda998x_priv(x) \
+ container_of(x, struct tda998x_priv, bridge)
+
+/* The TDA9988 series of devices use a paged register scheme.. to simplify
+ * things we encode the page # in upper bits of the register #. To read/
+ * write a given register, we need to make sure CURPAGE register is set
+ * appropriately. Which implies reads/writes are not atomic. Fun!
+ */
+
+#define REG(page, addr) (((page) << 8) | (addr))
+#define REG2ADDR(reg) ((reg) & 0xff)
+#define REG2PAGE(reg) (((reg) >> 8) & 0xff)
+
+#define REG_CURPAGE 0xff /* write */
+
+
+/* Page 00h: General Control */
+#define REG_VERSION_LSB REG(0x00, 0x00) /* read */
+#define REG_MAIN_CNTRL0 REG(0x00, 0x01) /* read/write */
+# define MAIN_CNTRL0_SR (1 << 0)
+# define MAIN_CNTRL0_DECS (1 << 1)
+# define MAIN_CNTRL0_DEHS (1 << 2)
+# define MAIN_CNTRL0_CECS (1 << 3)
+# define MAIN_CNTRL0_CEHS (1 << 4)
+# define MAIN_CNTRL0_SCALER (1 << 7)
+#define REG_VERSION_MSB REG(0x00, 0x02) /* read */
+#define REG_SOFTRESET REG(0x00, 0x0a) /* write */
+# define SOFTRESET_AUDIO (1 << 0)
+# define SOFTRESET_I2C_MASTER (1 << 1)
+#define REG_DDC_DISABLE REG(0x00, 0x0b) /* read/write */
+#define REG_CCLK_ON REG(0x00, 0x0c) /* read/write */
+#define REG_I2C_MASTER REG(0x00, 0x0d) /* read/write */
+# define I2C_MASTER_DIS_MM (1 << 0)
+# define I2C_MASTER_DIS_FILT (1 << 1)
+# define I2C_MASTER_APP_STRT_LAT (1 << 2)
+#define REG_FEAT_POWERDOWN REG(0x00, 0x0e) /* read/write */
+# define FEAT_POWERDOWN_PREFILT BIT(0)
+# define FEAT_POWERDOWN_CSC BIT(1)
+# define FEAT_POWERDOWN_SPDIF (1 << 3)
+#define REG_INT_FLAGS_0 REG(0x00, 0x0f) /* read/write */
+#define REG_INT_FLAGS_1 REG(0x00, 0x10) /* read/write */
+#define REG_INT_FLAGS_2 REG(0x00, 0x11) /* read/write */
+# define INT_FLAGS_2_EDID_BLK_RD (1 << 1)
+#define REG_ENA_ACLK REG(0x00, 0x16) /* read/write */
+#define REG_ENA_VP_0 REG(0x00, 0x18) /* read/write */
+#define REG_ENA_VP_1 REG(0x00, 0x19) /* read/write */
+#define REG_ENA_VP_2 REG(0x00, 0x1a) /* read/write */
+#define REG_ENA_AP REG(0x00, 0x1e) /* read/write */
+#define REG_VIP_CNTRL_0 REG(0x00, 0x20) /* write */
+# define VIP_CNTRL_0_MIRR_A (1 << 7)
+# define VIP_CNTRL_0_SWAP_A(x) (((x) & 7) << 4)
+# define VIP_CNTRL_0_MIRR_B (1 << 3)
+# define VIP_CNTRL_0_SWAP_B(x) (((x) & 7) << 0)
+#define REG_VIP_CNTRL_1 REG(0x00, 0x21) /* write */
+# define VIP_CNTRL_1_MIRR_C (1 << 7)
+# define VIP_CNTRL_1_SWAP_C(x) (((x) & 7) << 4)
+# define VIP_CNTRL_1_MIRR_D (1 << 3)
+# define VIP_CNTRL_1_SWAP_D(x) (((x) & 7) << 0)
+#define REG_VIP_CNTRL_2 REG(0x00, 0x22) /* write */
+# define VIP_CNTRL_2_MIRR_E (1 << 7)
+# define VIP_CNTRL_2_SWAP_E(x) (((x) & 7) << 4)
+# define VIP_CNTRL_2_MIRR_F (1 << 3)
+# define VIP_CNTRL_2_SWAP_F(x) (((x) & 7) << 0)
+#define REG_VIP_CNTRL_3 REG(0x00, 0x23) /* write */
+# define VIP_CNTRL_3_X_TGL (1 << 0)
+# define VIP_CNTRL_3_H_TGL (1 << 1)
+# define VIP_CNTRL_3_V_TGL (1 << 2)
+# define VIP_CNTRL_3_EMB (1 << 3)
+# define VIP_CNTRL_3_SYNC_DE (1 << 4)
+# define VIP_CNTRL_3_SYNC_HS (1 << 5)
+# define VIP_CNTRL_3_DE_INT (1 << 6)
+# define VIP_CNTRL_3_EDGE (1 << 7)
+#define REG_VIP_CNTRL_4 REG(0x00, 0x24) /* write */
+# define VIP_CNTRL_4_BLC(x) (((x) & 3) << 0)
+# define VIP_CNTRL_4_BLANKIT(x) (((x) & 3) << 2)
+# define VIP_CNTRL_4_CCIR656 (1 << 4)
+# define VIP_CNTRL_4_656_ALT (1 << 5)
+# define VIP_CNTRL_4_TST_656 (1 << 6)
+# define VIP_CNTRL_4_TST_PAT (1 << 7)
+#define REG_VIP_CNTRL_5 REG(0x00, 0x25) /* write */
+# define VIP_CNTRL_5_CKCASE (1 << 0)
+# define VIP_CNTRL_5_SP_CNT(x) (((x) & 3) << 1)
+#define REG_MUX_AP REG(0x00, 0x26) /* read/write */
+# define MUX_AP_SELECT_I2S 0x64
+# define MUX_AP_SELECT_SPDIF 0x40
+#define REG_MUX_VP_VIP_OUT REG(0x00, 0x27) /* read/write */
+#define REG_MAT_CONTRL REG(0x00, 0x80) /* write */
+# define MAT_CONTRL_MAT_SC(x) (((x) & 3) << 0)
+# define MAT_CONTRL_MAT_BP (1 << 2)
+#define REG_VIDFORMAT REG(0x00, 0xa0) /* write */
+#define REG_REFPIX_MSB REG(0x00, 0xa1) /* write */
+#define REG_REFPIX_LSB REG(0x00, 0xa2) /* write */
+#define REG_REFLINE_MSB REG(0x00, 0xa3) /* write */
+#define REG_REFLINE_LSB REG(0x00, 0xa4) /* write */
+#define REG_NPIX_MSB REG(0x00, 0xa5) /* write */
+#define REG_NPIX_LSB REG(0x00, 0xa6) /* write */
+#define REG_NLINE_MSB REG(0x00, 0xa7) /* write */
+#define REG_NLINE_LSB REG(0x00, 0xa8) /* write */
+#define REG_VS_LINE_STRT_1_MSB REG(0x00, 0xa9) /* write */
+#define REG_VS_LINE_STRT_1_LSB REG(0x00, 0xaa) /* write */
+#define REG_VS_PIX_STRT_1_MSB REG(0x00, 0xab) /* write */
+#define REG_VS_PIX_STRT_1_LSB REG(0x00, 0xac) /* write */
+#define REG_VS_LINE_END_1_MSB REG(0x00, 0xad) /* write */
+#define REG_VS_LINE_END_1_LSB REG(0x00, 0xae) /* write */
+#define REG_VS_PIX_END_1_MSB REG(0x00, 0xaf) /* write */
+#define REG_VS_PIX_END_1_LSB REG(0x00, 0xb0) /* write */
+#define REG_VS_LINE_STRT_2_MSB REG(0x00, 0xb1) /* write */
+#define REG_VS_LINE_STRT_2_LSB REG(0x00, 0xb2) /* write */
+#define REG_VS_PIX_STRT_2_MSB REG(0x00, 0xb3) /* write */
+#define REG_VS_PIX_STRT_2_LSB REG(0x00, 0xb4) /* write */
+#define REG_VS_LINE_END_2_MSB REG(0x00, 0xb5) /* write */
+#define REG_VS_LINE_END_2_LSB REG(0x00, 0xb6) /* write */
+#define REG_VS_PIX_END_2_MSB REG(0x00, 0xb7) /* write */
+#define REG_VS_PIX_END_2_LSB REG(0x00, 0xb8) /* write */
+#define REG_HS_PIX_START_MSB REG(0x00, 0xb9) /* write */
+#define REG_HS_PIX_START_LSB REG(0x00, 0xba) /* write */
+#define REG_HS_PIX_STOP_MSB REG(0x00, 0xbb) /* write */
+#define REG_HS_PIX_STOP_LSB REG(0x00, 0xbc) /* write */
+#define REG_VWIN_START_1_MSB REG(0x00, 0xbd) /* write */
+#define REG_VWIN_START_1_LSB REG(0x00, 0xbe) /* write */
+#define REG_VWIN_END_1_MSB REG(0x00, 0xbf) /* write */
+#define REG_VWIN_END_1_LSB REG(0x00, 0xc0) /* write */
+#define REG_VWIN_START_2_MSB REG(0x00, 0xc1) /* write */
+#define REG_VWIN_START_2_LSB REG(0x00, 0xc2) /* write */
+#define REG_VWIN_END_2_MSB REG(0x00, 0xc3) /* write */
+#define REG_VWIN_END_2_LSB REG(0x00, 0xc4) /* write */
+#define REG_DE_START_MSB REG(0x00, 0xc5) /* write */
+#define REG_DE_START_LSB REG(0x00, 0xc6) /* write */
+#define REG_DE_STOP_MSB REG(0x00, 0xc7) /* write */
+#define REG_DE_STOP_LSB REG(0x00, 0xc8) /* write */
+#define REG_TBG_CNTRL_0 REG(0x00, 0xca) /* write */
+# define TBG_CNTRL_0_TOP_TGL (1 << 0)
+# define TBG_CNTRL_0_TOP_SEL (1 << 1)
+# define TBG_CNTRL_0_DE_EXT (1 << 2)
+# define TBG_CNTRL_0_TOP_EXT (1 << 3)
+# define TBG_CNTRL_0_FRAME_DIS (1 << 5)
+# define TBG_CNTRL_0_SYNC_MTHD (1 << 6)
+# define TBG_CNTRL_0_SYNC_ONCE (1 << 7)
+#define REG_TBG_CNTRL_1 REG(0x00, 0xcb) /* write */
+# define TBG_CNTRL_1_H_TGL (1 << 0)
+# define TBG_CNTRL_1_V_TGL (1 << 1)
+# define TBG_CNTRL_1_TGL_EN (1 << 2)
+# define TBG_CNTRL_1_X_EXT (1 << 3)
+# define TBG_CNTRL_1_H_EXT (1 << 4)
+# define TBG_CNTRL_1_V_EXT (1 << 5)
+# define TBG_CNTRL_1_DWIN_DIS (1 << 6)
+#define REG_ENABLE_SPACE REG(0x00, 0xd6) /* write */
+#define REG_HVF_CNTRL_0 REG(0x00, 0xe4) /* write */
+# define HVF_CNTRL_0_SM (1 << 7)
+# define HVF_CNTRL_0_RWB (1 << 6)
+# define HVF_CNTRL_0_PREFIL(x) (((x) & 3) << 2)
+# define HVF_CNTRL_0_INTPOL(x) (((x) & 3) << 0)
+#define REG_HVF_CNTRL_1 REG(0x00, 0xe5) /* write */
+# define HVF_CNTRL_1_FOR (1 << 0)
+# define HVF_CNTRL_1_YUVBLK (1 << 1)
+# define HVF_CNTRL_1_VQR(x) (((x) & 3) << 2)
+# define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
+# define HVF_CNTRL_1_SEMI_PLANAR (1 << 6)
+#define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
+#define REG_I2S_FORMAT REG(0x00, 0xfc) /* read/write */
+# define I2S_FORMAT(x) (((x) & 3) << 0)
+#define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
+# define AIP_CLKSEL_AIP_SPDIF (0 << 3)
+# define AIP_CLKSEL_AIP_I2S (1 << 3)
+# define AIP_CLKSEL_FS_ACLK (0 << 0)
+# define AIP_CLKSEL_FS_MCLK (1 << 0)
+# define AIP_CLKSEL_FS_FS64SPDIF (2 << 0)
+
+/* Page 02h: PLL settings */
+#define REG_PLL_SERIAL_1 REG(0x02, 0x00) /* read/write */
+# define PLL_SERIAL_1_SRL_FDN (1 << 0)
+# define PLL_SERIAL_1_SRL_IZ(x) (((x) & 3) << 1)
+# define PLL_SERIAL_1_SRL_MAN_IZ (1 << 6)
+#define REG_PLL_SERIAL_2 REG(0x02, 0x01) /* read/write */
+# define PLL_SERIAL_2_SRL_NOSC(x) ((x) << 0)
+# define PLL_SERIAL_2_SRL_PR(x) (((x) & 0xf) << 4)
+#define REG_PLL_SERIAL_3 REG(0x02, 0x02) /* read/write */
+# define PLL_SERIAL_3_SRL_CCIR (1 << 0)
+# define PLL_SERIAL_3_SRL_DE (1 << 2)
+# define PLL_SERIAL_3_SRL_PXIN_SEL (1 << 4)
+#define REG_SERIALIZER REG(0x02, 0x03) /* read/write */
+#define REG_BUFFER_OUT REG(0x02, 0x04) /* read/write */
+#define REG_PLL_SCG1 REG(0x02, 0x05) /* read/write */
+#define REG_PLL_SCG2 REG(0x02, 0x06) /* read/write */
+#define REG_PLL_SCGN1 REG(0x02, 0x07) /* read/write */
+#define REG_PLL_SCGN2 REG(0x02, 0x08) /* read/write */
+#define REG_PLL_SCGR1 REG(0x02, 0x09) /* read/write */
+#define REG_PLL_SCGR2 REG(0x02, 0x0a) /* read/write */
+#define REG_AUDIO_DIV REG(0x02, 0x0e) /* read/write */
+# define AUDIO_DIV_SERCLK_1 0
+# define AUDIO_DIV_SERCLK_2 1
+# define AUDIO_DIV_SERCLK_4 2
+# define AUDIO_DIV_SERCLK_8 3
+# define AUDIO_DIV_SERCLK_16 4
+# define AUDIO_DIV_SERCLK_32 5
+#define REG_SEL_CLK REG(0x02, 0x11) /* read/write */
+# define SEL_CLK_SEL_CLK1 (1 << 0)
+# define SEL_CLK_SEL_VRF_CLK(x) (((x) & 3) << 1)
+# define SEL_CLK_ENA_SC_CLK (1 << 3)
+#define REG_ANA_GENERAL REG(0x02, 0x12) /* read/write */
+
+
+/* Page 09h: EDID Control */
+#define REG_EDID_DATA_0 REG(0x09, 0x00) /* read */
+/* next 127 successive registers are the EDID block */
+#define REG_EDID_CTRL REG(0x09, 0xfa) /* read/write */
+#define REG_DDC_ADDR REG(0x09, 0xfb) /* read/write */
+#define REG_DDC_OFFS REG(0x09, 0xfc) /* read/write */
+#define REG_DDC_SEGM_ADDR REG(0x09, 0xfd) /* read/write */
+#define REG_DDC_SEGM REG(0x09, 0xfe) /* read/write */
+
+
+/* Page 10h: information frames and packets */
+#define REG_IF1_HB0 REG(0x10, 0x20) /* read/write */
+#define REG_IF2_HB0 REG(0x10, 0x40) /* read/write */
+#define REG_IF3_HB0 REG(0x10, 0x60) /* read/write */
+#define REG_IF4_HB0 REG(0x10, 0x80) /* read/write */
+#define REG_IF5_HB0 REG(0x10, 0xa0) /* read/write */
+
+
+/* Page 11h: audio settings and content info packets */
+#define REG_AIP_CNTRL_0 REG(0x11, 0x00) /* read/write */
+# define AIP_CNTRL_0_RST_FIFO (1 << 0)
+# define AIP_CNTRL_0_SWAP (1 << 1)
+# define AIP_CNTRL_0_LAYOUT (1 << 2)
+# define AIP_CNTRL_0_ACR_MAN (1 << 5)
+# define AIP_CNTRL_0_RST_CTS (1 << 6)
+#define REG_CA_I2S REG(0x11, 0x01) /* read/write */
+# define CA_I2S_CA_I2S(x) (((x) & 31) << 0)
+# define CA_I2S_HBR_CHSTAT (1 << 6)
+#define REG_LATENCY_RD REG(0x11, 0x04) /* read/write */
+#define REG_ACR_CTS_0 REG(0x11, 0x05) /* read/write */
+#define REG_ACR_CTS_1 REG(0x11, 0x06) /* read/write */
+#define REG_ACR_CTS_2 REG(0x11, 0x07) /* read/write */
+#define REG_ACR_N_0 REG(0x11, 0x08) /* read/write */
+#define REG_ACR_N_1 REG(0x11, 0x09) /* read/write */
+#define REG_ACR_N_2 REG(0x11, 0x0a) /* read/write */
+#define REG_CTS_N REG(0x11, 0x0c) /* read/write */
+# define CTS_N_K(x) (((x) & 7) << 0)
+# define CTS_N_M(x) (((x) & 3) << 4)
+#define REG_ENC_CNTRL REG(0x11, 0x0d) /* read/write */
+# define ENC_CNTRL_RST_ENC (1 << 0)
+# define ENC_CNTRL_RST_SEL (1 << 1)
+# define ENC_CNTRL_CTL_CODE(x) (((x) & 3) << 2)
+#define REG_DIP_FLAGS REG(0x11, 0x0e) /* read/write */
+# define DIP_FLAGS_ACR (1 << 0)
+# define DIP_FLAGS_GC (1 << 1)
+#define REG_DIP_IF_FLAGS REG(0x11, 0x0f) /* read/write */
+# define DIP_IF_FLAGS_IF1 (1 << 1)
+# define DIP_IF_FLAGS_IF2 (1 << 2)
+# define DIP_IF_FLAGS_IF3 (1 << 3)
+# define DIP_IF_FLAGS_IF4 (1 << 4)
+# define DIP_IF_FLAGS_IF5 (1 << 5)
+#define REG_CH_STAT_B(x) REG(0x11, 0x14 + (x)) /* read/write */
+
+
+/* Page 12h: HDCP and OTP */
+#define REG_TX3 REG(0x12, 0x9a) /* read/write */
+#define REG_TX4 REG(0x12, 0x9b) /* read/write */
+# define TX4_PD_RAM (1 << 1)
+#define REG_TX33 REG(0x12, 0xb8) /* read/write */
+# define TX33_HDMI (1 << 1)
+
+
+/* Page 13h: Gamut related metadata packets */
+
+
+
+/* CEC registers: (not paged)
+ */
+#define REG_CEC_INTSTATUS 0xee /* read */
+# define CEC_INTSTATUS_CEC (1 << 0)
+# define CEC_INTSTATUS_HDMI (1 << 1)
+#define REG_CEC_CAL_XOSC_CTRL1 0xf2
+# define CEC_CAL_XOSC_CTRL1_ENA_CAL BIT(0)
+#define REG_CEC_DES_FREQ2 0xf5
+# define CEC_DES_FREQ2_DIS_AUTOCAL BIT(7)
+#define REG_CEC_CLK 0xf6
+# define CEC_CLK_FRO 0x11
+#define REG_CEC_FRO_IM_CLK_CTRL 0xfb /* read/write */
+# define CEC_FRO_IM_CLK_CTRL_GHOST_DIS (1 << 7)
+# define CEC_FRO_IM_CLK_CTRL_ENA_OTP (1 << 6)
+# define CEC_FRO_IM_CLK_CTRL_IMCLK_SEL (1 << 1)
+# define CEC_FRO_IM_CLK_CTRL_FRO_DIV (1 << 0)
+#define REG_CEC_RXSHPDINTENA 0xfc /* read/write */
+#define REG_CEC_RXSHPDINT 0xfd /* read */
+# define CEC_RXSHPDINT_RXSENS BIT(0)
+# define CEC_RXSHPDINT_HPD BIT(1)
+#define REG_CEC_RXSHPDLEV 0xfe /* read */
+# define CEC_RXSHPDLEV_RXSENS (1 << 0)
+# define CEC_RXSHPDLEV_HPD (1 << 1)
+
+#define REG_CEC_ENAMODS 0xff /* read/write */
+# define CEC_ENAMODS_EN_CEC_CLK (1 << 7)
+# define CEC_ENAMODS_DIS_FRO (1 << 6)
+# define CEC_ENAMODS_DIS_CCLK (1 << 5)
+# define CEC_ENAMODS_EN_RXSENS (1 << 2)
+# define CEC_ENAMODS_EN_HDMI (1 << 1)
+# define CEC_ENAMODS_EN_CEC (1 << 0)
+
+
+/* Device versions: */
+#define TDA9989N2 0x0101
+#define TDA19989 0x0201
+#define TDA19989N2 0x0202
+#define TDA19988 0x0301
+
+static void
+cec_write(struct tda998x_priv *priv, u16 addr, u8 val)
+{
+ u8 buf[] = {addr, val};
+ struct i2c_msg msg = {
+ .addr = priv->cec_addr,
+ .len = 2,
+ .buf = buf,
+ };
+ int ret;
+
+ ret = i2c_transfer(priv->hdmi->adapter, &msg, 1);
+ if (ret < 0)
+ dev_err(&priv->hdmi->dev, "Error %d writing to cec:0x%x\n",
+ ret, addr);
+}
+
+static u8
+cec_read(struct tda998x_priv *priv, u8 addr)
+{
+ u8 val;
+ struct i2c_msg msg[2] = {
+ {
+ .addr = priv->cec_addr,
+ .len = 1,
+ .buf = &addr,
+ }, {
+ .addr = priv->cec_addr,
+ .flags = I2C_M_RD,
+ .len = 1,
+ .buf = &val,
+ },
+ };
+ int ret;
+
+ ret = i2c_transfer(priv->hdmi->adapter, msg, ARRAY_SIZE(msg));
+ if (ret < 0) {
+ dev_err(&priv->hdmi->dev, "Error %d reading from cec:0x%x\n",
+ ret, addr);
+ val = 0;
+ }
+
+ return val;
+}
+
+static void cec_enamods(struct tda998x_priv *priv, u8 mods, bool enable)
+{
+ int val = cec_read(priv, REG_CEC_ENAMODS);
+
+ if (val < 0)
+ return;
+
+ if (enable)
+ val |= mods;
+ else
+ val &= ~mods;
+
+ cec_write(priv, REG_CEC_ENAMODS, val);
+}
+
+static void tda998x_cec_set_calibration(struct tda998x_priv *priv, bool enable)
+{
+ if (enable) {
+ u8 val;
+
+ cec_write(priv, 0xf3, 0xc0);
+ cec_write(priv, 0xf4, 0xd4);
+
+ /* Enable automatic calibration mode */
+ val = cec_read(priv, REG_CEC_DES_FREQ2);
+ val &= ~CEC_DES_FREQ2_DIS_AUTOCAL;
+ cec_write(priv, REG_CEC_DES_FREQ2, val);
+
+ /* Enable free running oscillator */
+ cec_write(priv, REG_CEC_CLK, CEC_CLK_FRO);
+ cec_enamods(priv, CEC_ENAMODS_DIS_FRO, false);
+
+ cec_write(priv, REG_CEC_CAL_XOSC_CTRL1,
+ CEC_CAL_XOSC_CTRL1_ENA_CAL);
+ } else {
+ cec_write(priv, REG_CEC_CAL_XOSC_CTRL1, 0);
+ }
+}
+
+/*
+ * Calibration for the internal oscillator: we need to set calibration mode,
+ * and then pulse the IRQ line low for a 10ms ± 1% period.
+ */
+static void tda998x_cec_calibration(struct tda998x_priv *priv)
+{
+ struct gpio_desc *calib = priv->calib;
+
+ mutex_lock(&priv->edid_mutex);
+ if (priv->hdmi->irq > 0)
+ disable_irq(priv->hdmi->irq);
+ gpiod_direction_output(calib, 1);
+ tda998x_cec_set_calibration(priv, true);
+
+ local_irq_disable();
+ gpiod_set_value(calib, 0);
+ mdelay(10);
+ gpiod_set_value(calib, 1);
+ local_irq_enable();
+
+ tda998x_cec_set_calibration(priv, false);
+ gpiod_direction_input(calib);
+ if (priv->hdmi->irq > 0)
+ enable_irq(priv->hdmi->irq);
+ mutex_unlock(&priv->edid_mutex);
+}
+
+static int tda998x_cec_hook_init(void *data)
+{
+ struct tda998x_priv *priv = data;
+ struct gpio_desc *calib;
+
+ calib = gpiod_get(&priv->hdmi->dev, "nxp,calib", GPIOD_ASIS);
+ if (IS_ERR(calib)) {
+ dev_warn(&priv->hdmi->dev, "failed to get calibration gpio: %ld\n",
+ PTR_ERR(calib));
+ return PTR_ERR(calib);
+ }
+
+ priv->calib = calib;
+
+ return 0;
+}
+
+static void tda998x_cec_hook_exit(void *data)
+{
+ struct tda998x_priv *priv = data;
+
+ gpiod_put(priv->calib);
+ priv->calib = NULL;
+}
+
+static int tda998x_cec_hook_open(void *data)
+{
+ struct tda998x_priv *priv = data;
+
+ cec_enamods(priv, CEC_ENAMODS_EN_CEC_CLK | CEC_ENAMODS_EN_CEC, true);
+ tda998x_cec_calibration(priv);
+
+ return 0;
+}
+
+static void tda998x_cec_hook_release(void *data)
+{
+ struct tda998x_priv *priv = data;
+
+ cec_enamods(priv, CEC_ENAMODS_EN_CEC_CLK | CEC_ENAMODS_EN_CEC, false);
+}
+
+static int
+set_page(struct tda998x_priv *priv, u16 reg)
+{
+ if (REG2PAGE(reg) != priv->current_page) {
+ struct i2c_client *client = priv->hdmi;
+ u8 buf[] = {
+ REG_CURPAGE, REG2PAGE(reg)
+ };
+ int ret = i2c_master_send(client, buf, sizeof(buf));
+ if (ret < 0) {
+ dev_err(&client->dev, "%s %04x err %d\n", __func__,
+ reg, ret);
+ return ret;
+ }
+
+ priv->current_page = REG2PAGE(reg);
+ }
+ return 0;
+}
+
+static int
+reg_read_range(struct tda998x_priv *priv, u16 reg, char *buf, int cnt)
+{
+ struct i2c_client *client = priv->hdmi;
+ u8 addr = REG2ADDR(reg);
+ int ret;
+
+ mutex_lock(&priv->mutex);
+ ret = set_page(priv, reg);
+ if (ret < 0)
+ goto out;
+
+ ret = i2c_master_send(client, &addr, sizeof(addr));
+ if (ret < 0)
+ goto fail;
+
+ ret = i2c_master_recv(client, buf, cnt);
+ if (ret < 0)
+ goto fail;
+
+ goto out;
+
+fail:
+ dev_err(&client->dev, "Error %d reading from 0x%x\n", ret, reg);
+out:
+ mutex_unlock(&priv->mutex);
+ return ret;
+}
+
+#define MAX_WRITE_RANGE_BUF 32
+
+static void
+reg_write_range(struct tda998x_priv *priv, u16 reg, u8 *p, int cnt)
+{
+ struct i2c_client *client = priv->hdmi;
+ /* This is the maximum size of the buffer passed in */
+ u8 buf[MAX_WRITE_RANGE_BUF + 1];
+ int ret;
+
+ if (cnt > MAX_WRITE_RANGE_BUF) {
+ dev_err(&client->dev, "Fixed write buffer too small (%d)\n",
+ MAX_WRITE_RANGE_BUF);
+ return;
+ }
+
+ buf[0] = REG2ADDR(reg);
+ memcpy(&buf[1], p, cnt);
+
+ mutex_lock(&priv->mutex);
+ ret = set_page(priv, reg);
+ if (ret < 0)
+ goto out;
+
+ ret = i2c_master_send(client, buf, cnt + 1);
+ if (ret < 0)
+ dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
+out:
+ mutex_unlock(&priv->mutex);
+}
+
+static int
+reg_read(struct tda998x_priv *priv, u16 reg)
+{
+ u8 val = 0;
+ int ret;
+
+ ret = reg_read_range(priv, reg, &val, sizeof(val));
+ if (ret < 0)
+ return ret;
+ return val;
+}
+
+static void
+reg_write(struct tda998x_priv *priv, u16 reg, u8 val)
+{
+ struct i2c_client *client = priv->hdmi;
+ u8 buf[] = {REG2ADDR(reg), val};
+ int ret;
+
+ mutex_lock(&priv->mutex);
+ ret = set_page(priv, reg);
+ if (ret < 0)
+ goto out;
+
+ ret = i2c_master_send(client, buf, sizeof(buf));
+ if (ret < 0)
+ dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
+out:
+ mutex_unlock(&priv->mutex);
+}
+
+static void
+reg_write16(struct tda998x_priv *priv, u16 reg, u16 val)
+{
+ struct i2c_client *client = priv->hdmi;
+ u8 buf[] = {REG2ADDR(reg), val >> 8, val};
+ int ret;
+
+ mutex_lock(&priv->mutex);
+ ret = set_page(priv, reg);
+ if (ret < 0)
+ goto out;
+
+ ret = i2c_master_send(client, buf, sizeof(buf));
+ if (ret < 0)
+ dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
+out:
+ mutex_unlock(&priv->mutex);
+}
+
+static void
+reg_set(struct tda998x_priv *priv, u16 reg, u8 val)
+{
+ int old_val;
+
+ old_val = reg_read(priv, reg);
+ if (old_val >= 0)
+ reg_write(priv, reg, old_val | val);
+}
+
+static void
+reg_clear(struct tda998x_priv *priv, u16 reg, u8 val)
+{
+ int old_val;
+
+ old_val = reg_read(priv, reg);
+ if (old_val >= 0)
+ reg_write(priv, reg, old_val & ~val);
+}
+
+static void
+tda998x_reset(struct tda998x_priv *priv)
+{
+ /* reset audio and i2c master: */
+ reg_write(priv, REG_SOFTRESET, SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
+ msleep(50);
+ reg_write(priv, REG_SOFTRESET, 0);
+ msleep(50);
+
+ /* reset transmitter: */
+ reg_set(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
+ reg_clear(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
+
+ /* PLL registers common configuration */
+ reg_write(priv, REG_PLL_SERIAL_1, 0x00);
+ reg_write(priv, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(1));
+ reg_write(priv, REG_PLL_SERIAL_3, 0x00);
+ reg_write(priv, REG_SERIALIZER, 0x00);
+ reg_write(priv, REG_BUFFER_OUT, 0x00);
+ reg_write(priv, REG_PLL_SCG1, 0x00);
+ reg_write(priv, REG_AUDIO_DIV, AUDIO_DIV_SERCLK_8);
+ reg_write(priv, REG_SEL_CLK, SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
+ reg_write(priv, REG_PLL_SCGN1, 0xfa);
+ reg_write(priv, REG_PLL_SCGN2, 0x00);
+ reg_write(priv, REG_PLL_SCGR1, 0x5b);
+ reg_write(priv, REG_PLL_SCGR2, 0x00);
+ reg_write(priv, REG_PLL_SCG2, 0x10);
+
+ /* Write the default value MUX register */
+ reg_write(priv, REG_MUX_VP_VIP_OUT, 0x24);
+}
+
+/*
+ * The TDA998x has a problem when trying to read the EDID close to a
+ * HPD assertion: it needs a delay of 100ms to avoid timing out while
+ * trying to read EDID data.
+ *
+ * However, tda998x_connector_get_modes() may be called at any moment
+ * after tda998x_connector_detect() indicates that we are connected, so
+ * we need to delay probing modes in tda998x_connector_get_modes() after
+ * we have seen a HPD inactive->active transition. This code implements
+ * that delay.
+ */
+static void tda998x_edid_delay_done(struct timer_list *t)
+{
+ struct tda998x_priv *priv = from_timer(priv, t, edid_delay_timer);
+
+ priv->edid_delay_active = false;
+ wake_up(&priv->edid_delay_waitq);
+ schedule_work(&priv->detect_work);
+}
+
+static void tda998x_edid_delay_start(struct tda998x_priv *priv)
+{
+ priv->edid_delay_active = true;
+ mod_timer(&priv->edid_delay_timer, jiffies + HZ/10);
+}
+
+static int tda998x_edid_delay_wait(struct tda998x_priv *priv)
+{
+ return wait_event_killable(priv->edid_delay_waitq, !priv->edid_delay_active);
+}
+
+/*
+ * We need to run the KMS hotplug event helper outside of our threaded
+ * interrupt routine as this can call back into our get_modes method,
+ * which will want to make use of interrupts.
+ */
+static void tda998x_detect_work(struct work_struct *work)
+{
+ struct tda998x_priv *priv =
+ container_of(work, struct tda998x_priv, detect_work);
+ struct drm_device *dev = priv->connector.dev;
+
+ if (dev)
+ drm_kms_helper_hotplug_event(dev);
+}
+
+/*
+ * only 2 interrupts may occur: screen plug/unplug and EDID read
+ */
+static irqreturn_t tda998x_irq_thread(int irq, void *data)
+{
+ struct tda998x_priv *priv = data;
+ u8 sta, cec, lvl, flag0, flag1, flag2;
+ bool handled = false;
+
+ sta = cec_read(priv, REG_CEC_INTSTATUS);
+ if (sta & CEC_INTSTATUS_HDMI) {
+ cec = cec_read(priv, REG_CEC_RXSHPDINT);
+ lvl = cec_read(priv, REG_CEC_RXSHPDLEV);
+ flag0 = reg_read(priv, REG_INT_FLAGS_0);
+ flag1 = reg_read(priv, REG_INT_FLAGS_1);
+ flag2 = reg_read(priv, REG_INT_FLAGS_2);
+ DRM_DEBUG_DRIVER(
+ "tda irq sta %02x cec %02x lvl %02x f0 %02x f1 %02x f2 %02x\n",
+ sta, cec, lvl, flag0, flag1, flag2);
+
+ if (cec & CEC_RXSHPDINT_HPD) {
+ if (lvl & CEC_RXSHPDLEV_HPD) {
+ tda998x_edid_delay_start(priv);
+ } else {
+ schedule_work(&priv->detect_work);
+ cec_notifier_set_phys_addr(priv->cec_notify,
+ CEC_PHYS_ADDR_INVALID);
+ }
+
+ handled = true;
+ }
+
+ if ((flag2 & INT_FLAGS_2_EDID_BLK_RD) && priv->wq_edid_wait) {
+ priv->wq_edid_wait = 0;
+ wake_up(&priv->wq_edid);
+ handled = true;
+ }
+ }
+
+ return IRQ_RETVAL(handled);
+}
+
+static void
+tda998x_write_if(struct tda998x_priv *priv, u8 bit, u16 addr,
+ union hdmi_infoframe *frame)
+{
+ u8 buf[MAX_WRITE_RANGE_BUF];
+ ssize_t len;
+
+ len = hdmi_infoframe_pack(frame, buf, sizeof(buf));
+ if (len < 0) {
+ dev_err(&priv->hdmi->dev,
+ "hdmi_infoframe_pack() type=0x%02x failed: %zd\n",
+ frame->any.type, len);
+ return;
+ }
+
+ reg_clear(priv, REG_DIP_IF_FLAGS, bit);
+ reg_write_range(priv, addr, buf, len);
+ reg_set(priv, REG_DIP_IF_FLAGS, bit);
+}
+
+static int tda998x_write_aif(struct tda998x_priv *priv,
+ struct hdmi_audio_infoframe *cea)
+{
+ union hdmi_infoframe frame;
+
+ frame.audio = *cea;
+
+ tda998x_write_if(priv, DIP_IF_FLAGS_IF4, REG_IF4_HB0, &frame);
+
+ return 0;
+}
+
+static void
+tda998x_write_avi(struct tda998x_priv *priv, struct drm_display_mode *mode)
+{
+ union hdmi_infoframe frame;
+
+ drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
+ frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_FULL;
+
+ tda998x_write_if(priv, DIP_IF_FLAGS_IF2, REG_IF2_HB0, &frame);
+}
+
+/* Audio support */
+
+static void tda998x_audio_mute(struct tda998x_priv *priv, bool on)
+{
+ if (on) {
+ reg_set(priv, REG_SOFTRESET, SOFTRESET_AUDIO);
+ reg_clear(priv, REG_SOFTRESET, SOFTRESET_AUDIO);
+ reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
+ } else {
+ reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
+ }
+}
+
+static int
+tda998x_configure_audio(struct tda998x_priv *priv,
+ struct tda998x_audio_params *params)
+{
+ u8 buf[6], clksel_aip, clksel_fs, cts_n, adiv;
+ u32 n;
+
+ /* Enable audio ports */
+ reg_write(priv, REG_ENA_AP, params->config);
+
+ /* Set audio input source */
+ switch (params->format) {
+ case AFMT_SPDIF:
+ reg_write(priv, REG_ENA_ACLK, 0);
+ reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_SPDIF);
+ clksel_aip = AIP_CLKSEL_AIP_SPDIF;
+ clksel_fs = AIP_CLKSEL_FS_FS64SPDIF;
+ cts_n = CTS_N_M(3) | CTS_N_K(3);
+ break;
+
+ case AFMT_I2S:
+ reg_write(priv, REG_ENA_ACLK, 1);
+ reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_I2S);
+ clksel_aip = AIP_CLKSEL_AIP_I2S;
+ clksel_fs = AIP_CLKSEL_FS_ACLK;
+ switch (params->sample_width) {
+ case 16:
+ cts_n = CTS_N_M(3) | CTS_N_K(1);
+ break;
+ case 18:
+ case 20:
+ case 24:
+ cts_n = CTS_N_M(3) | CTS_N_K(2);
+ break;
+ default:
+ case 32:
+ cts_n = CTS_N_M(3) | CTS_N_K(3);
+ break;
+ }
+ break;
+
+ default:
+ dev_err(&priv->hdmi->dev, "Unsupported I2S format\n");
+ return -EINVAL;
+ }
+
+ reg_write(priv, REG_AIP_CLKSEL, clksel_aip);
+ reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_LAYOUT |
+ AIP_CNTRL_0_ACR_MAN); /* auto CTS */
+ reg_write(priv, REG_CTS_N, cts_n);
+
+ /*
+ * Audio input somehow depends on HDMI line rate which is
+ * related to pixclk. Testing showed that modes with pixclk
+ * >100MHz need a larger divider while <40MHz need the default.
+ * There is no detailed info in the datasheet, so we just
+ * assume 100MHz requires larger divider.
+ */
+ adiv = AUDIO_DIV_SERCLK_8;
+ if (priv->tmds_clock > 100000)
+ adiv++; /* AUDIO_DIV_SERCLK_16 */
+
+ /* S/PDIF asks for a larger divider */
+ if (params->format == AFMT_SPDIF)
+ adiv++; /* AUDIO_DIV_SERCLK_16 or _32 */
+
+ reg_write(priv, REG_AUDIO_DIV, adiv);
+
+ /*
+ * This is the approximate value of N, which happens to be
+ * the recommended values for non-coherent clocks.
+ */
+ n = 128 * params->sample_rate / 1000;
+
+ /* Write the CTS and N values */
+ buf[0] = 0x44;
+ buf[1] = 0x42;
+ buf[2] = 0x01;
+ buf[3] = n;
+ buf[4] = n >> 8;
+ buf[5] = n >> 16;
+ reg_write_range(priv, REG_ACR_CTS_0, buf, 6);
+
+ /* Set CTS clock reference */
+ reg_write(priv, REG_AIP_CLKSEL, clksel_aip | clksel_fs);
+
+ /* Reset CTS generator */
+ reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
+ reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
+
+ /* Write the channel status
+ * The REG_CH_STAT_B-registers skip IEC958 AES2 byte, because
+ * there is a separate register for each I2S wire.
+ */
+ buf[0] = params->status[0];
+ buf[1] = params->status[1];
+ buf[2] = params->status[3];
+ buf[3] = params->status[4];
+ reg_write_range(priv, REG_CH_STAT_B(0), buf, 4);
+
+ tda998x_audio_mute(priv, true);
+ msleep(20);
+ tda998x_audio_mute(priv, false);
+
+ return tda998x_write_aif(priv, ¶ms->cea);
+}
+
+static int tda998x_audio_hw_params(struct device *dev, void *data,
+ struct hdmi_codec_daifmt *daifmt,
+ struct hdmi_codec_params *params)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+ int i, ret;
+ struct tda998x_audio_params audio = {
+ .sample_width = params->sample_width,
+ .sample_rate = params->sample_rate,
+ .cea = params->cea,
+ };
+
+ memcpy(audio.status, params->iec.status,
+ min(sizeof(audio.status), sizeof(params->iec.status)));
+
+ switch (daifmt->fmt) {
+ case HDMI_I2S:
+ if (daifmt->bit_clk_inv || daifmt->frame_clk_inv ||
+ daifmt->bit_clk_master || daifmt->frame_clk_master) {
+ dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__,
+ daifmt->bit_clk_inv, daifmt->frame_clk_inv,
+ daifmt->bit_clk_master,
+ daifmt->frame_clk_master);
+ return -EINVAL;
+ }
+ for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++)
+ if (priv->audio_port[i].format == AFMT_I2S)
+ audio.config = priv->audio_port[i].config;
+ audio.format = AFMT_I2S;
+ break;
+ case HDMI_SPDIF:
+ for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++)
+ if (priv->audio_port[i].format == AFMT_SPDIF)
+ audio.config = priv->audio_port[i].config;
+ audio.format = AFMT_SPDIF;
+ break;
+ default:
+ dev_err(dev, "%s: Invalid format %d\n", __func__, daifmt->fmt);
+ return -EINVAL;
+ }
+
+ if (audio.config == 0) {
+ dev_err(dev, "%s: No audio configuration found\n", __func__);
+ return -EINVAL;
+ }
+
+ mutex_lock(&priv->audio_mutex);
+ if (priv->supports_infoframes && priv->sink_has_audio)
+ ret = tda998x_configure_audio(priv, &audio);
+ else
+ ret = 0;
+
+ if (ret == 0)
+ priv->audio_params = audio;
+ mutex_unlock(&priv->audio_mutex);
+
+ return ret;
+}
+
+static void tda998x_audio_shutdown(struct device *dev, void *data)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+
+ mutex_lock(&priv->audio_mutex);
+
+ reg_write(priv, REG_ENA_AP, 0);
+
+ priv->audio_params.format = AFMT_UNUSED;
+
+ mutex_unlock(&priv->audio_mutex);
+}
+
+int tda998x_audio_digital_mute(struct device *dev, void *data, bool enable)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+
+ mutex_lock(&priv->audio_mutex);
+
+ tda998x_audio_mute(priv, enable);
+
+ mutex_unlock(&priv->audio_mutex);
+ return 0;
+}
+
+static int tda998x_audio_get_eld(struct device *dev, void *data,
+ uint8_t *buf, size_t len)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+
+ mutex_lock(&priv->audio_mutex);
+ memcpy(buf, priv->connector.eld,
+ min(sizeof(priv->connector.eld), len));
+ mutex_unlock(&priv->audio_mutex);
+
+ return 0;
+}
+
+static const struct hdmi_codec_ops audio_codec_ops = {
+ .hw_params = tda998x_audio_hw_params,
+ .audio_shutdown = tda998x_audio_shutdown,
+ .digital_mute = tda998x_audio_digital_mute,
+ .get_eld = tda998x_audio_get_eld,
+};
+
+static int tda998x_audio_codec_init(struct tda998x_priv *priv,
+ struct device *dev)
+{
+ struct hdmi_codec_pdata codec_data = {
+ .ops = &audio_codec_ops,
+ .max_i2s_channels = 2,
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++) {
+ if (priv->audio_port[i].format == AFMT_I2S &&
+ priv->audio_port[i].config != 0)
+ codec_data.i2s = 1;
+ if (priv->audio_port[i].format == AFMT_SPDIF &&
+ priv->audio_port[i].config != 0)
+ codec_data.spdif = 1;
+ }
+
+ priv->audio_pdev = platform_device_register_data(
+ dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO,
+ &codec_data, sizeof(codec_data));
+
+ return PTR_ERR_OR_ZERO(priv->audio_pdev);
+}
+
+/* DRM connector functions */
+
+static enum drm_connector_status
+tda998x_connector_detect(struct drm_connector *connector, bool force)
+{
+ struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
+ u8 val = cec_read(priv, REG_CEC_RXSHPDLEV);
+
+ return (val & CEC_RXSHPDLEV_HPD) ? connector_status_connected :
+ connector_status_disconnected;
+}
+
+static void tda998x_connector_destroy(struct drm_connector *connector)
+{
+ drm_connector_cleanup(connector);
+}
+
+static const struct drm_connector_funcs tda998x_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .reset = drm_atomic_helper_connector_reset,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .detect = tda998x_connector_detect,
+ .destroy = tda998x_connector_destroy,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static int read_edid_block(void *data, u8 *buf, unsigned int blk, size_t length)
+{
+ struct tda998x_priv *priv = data;
+ u8 offset, segptr;
+ int ret, i;
+
+ offset = (blk & 1) ? 128 : 0;
+ segptr = blk / 2;
+
+ mutex_lock(&priv->edid_mutex);
+
+ reg_write(priv, REG_DDC_ADDR, 0xa0);
+ reg_write(priv, REG_DDC_OFFS, offset);
+ reg_write(priv, REG_DDC_SEGM_ADDR, 0x60);
+ reg_write(priv, REG_DDC_SEGM, segptr);
+
+ /* enable reading EDID: */
+ priv->wq_edid_wait = 1;
+ reg_write(priv, REG_EDID_CTRL, 0x1);
+
+ /* flag must be cleared by sw: */
+ reg_write(priv, REG_EDID_CTRL, 0x0);
+
+ /* wait for block read to complete: */
+ if (priv->hdmi->irq) {
+ i = wait_event_timeout(priv->wq_edid,
+ !priv->wq_edid_wait,
+ msecs_to_jiffies(100));
+ if (i < 0) {
+ dev_err(&priv->hdmi->dev, "read edid wait err %d\n", i);
+ ret = i;
+ goto failed;
+ }
+ } else {
+ for (i = 100; i > 0; i--) {
+ msleep(1);
+ ret = reg_read(priv, REG_INT_FLAGS_2);
+ if (ret < 0)
+ goto failed;
+ if (ret & INT_FLAGS_2_EDID_BLK_RD)
+ break;
+ }
+ }
+
+ if (i == 0) {
+ dev_err(&priv->hdmi->dev, "read edid timeout\n");
+ ret = -ETIMEDOUT;
+ goto failed;
+ }
+
+ ret = reg_read_range(priv, REG_EDID_DATA_0, buf, length);
+ if (ret != length) {
+ dev_err(&priv->hdmi->dev, "failed to read edid block %d: %d\n",
+ blk, ret);
+ goto failed;
+ }
+
+ ret = 0;
+
+ failed:
+ mutex_unlock(&priv->edid_mutex);
+ return ret;
+}
+
+static int tda998x_connector_get_modes(struct drm_connector *connector)
+{
+ struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
+ struct edid *edid;
+ int n;
+
+ /*
+ * If we get killed while waiting for the HPD timeout, return
+ * no modes found: we are not in a restartable path, so we
+ * can't handle signals gracefully.
+ */
+ if (tda998x_edid_delay_wait(priv))
+ return 0;
+
+ if (priv->rev == TDA19988)
+ reg_clear(priv, REG_TX4, TX4_PD_RAM);
+
+ edid = drm_do_get_edid(connector, read_edid_block, priv);
+
+ if (priv->rev == TDA19988)
+ reg_set(priv, REG_TX4, TX4_PD_RAM);
+
+ if (!edid) {
+ dev_warn(&priv->hdmi->dev, "failed to read EDID\n");
+ return 0;
+ }
+
+ drm_connector_update_edid_property(connector, edid);
+ cec_notifier_set_phys_addr_from_edid(priv->cec_notify, edid);
+
+ mutex_lock(&priv->audio_mutex);
+ n = drm_add_edid_modes(connector, edid);
+ priv->sink_has_audio = drm_detect_monitor_audio(edid);
+ mutex_unlock(&priv->audio_mutex);
+
+ kfree(edid);
+
+ return n;
+}
+
+static struct drm_encoder *
+tda998x_connector_best_encoder(struct drm_connector *connector)
+{
+ struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
+
+ return priv->bridge.encoder;
+}
+
+static
+const struct drm_connector_helper_funcs tda998x_connector_helper_funcs = {
+ .get_modes = tda998x_connector_get_modes,
+ .best_encoder = tda998x_connector_best_encoder,
+};
+
+static int tda998x_connector_init(struct tda998x_priv *priv,
+ struct drm_device *drm)
+{
+ struct drm_connector *connector = &priv->connector;
+ int ret;
+
+ connector->interlace_allowed = 1;
+
+ if (priv->hdmi->irq)
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
+ else
+ connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+ DRM_CONNECTOR_POLL_DISCONNECT;
+
+ drm_connector_helper_add(connector, &tda998x_connector_helper_funcs);
+ ret = drm_connector_init(drm, connector, &tda998x_connector_funcs,
+ DRM_MODE_CONNECTOR_HDMIA);
+ if (ret)
+ return ret;
+
+ drm_connector_attach_encoder(&priv->connector,
+ priv->bridge.encoder);
+
+ return 0;
+}
+
+/* DRM bridge functions */
+
+static int tda998x_bridge_attach(struct drm_bridge *bridge)
+{
+ struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+
+ return tda998x_connector_init(priv, bridge->dev);
+}
+
+static void tda998x_bridge_detach(struct drm_bridge *bridge)
+{
+ struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+
+ drm_connector_cleanup(&priv->connector);
+}
+
+static enum drm_mode_status tda998x_bridge_mode_valid(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode)
+{
+ /* TDA19988 dotclock can go up to 165MHz */
+ struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+
+ if (mode->clock > ((priv->rev == TDA19988) ? 165000 : 150000))
+ return MODE_CLOCK_HIGH;
+ if (mode->htotal >= BIT(13))
+ return MODE_BAD_HVALUE;
+ if (mode->vtotal >= BIT(11))
+ return MODE_BAD_VVALUE;
+ return MODE_OK;
+}
+
+static void tda998x_bridge_enable(struct drm_bridge *bridge)
+{
+ struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+
+ if (!priv->is_on) {
+ /* enable video ports, audio will be enabled later */
+ reg_write(priv, REG_ENA_VP_0, 0xff);
+ reg_write(priv, REG_ENA_VP_1, 0xff);
+ reg_write(priv, REG_ENA_VP_2, 0xff);
+ /* set muxing after enabling ports: */
+ reg_write(priv, REG_VIP_CNTRL_0, priv->vip_cntrl_0);
+ reg_write(priv, REG_VIP_CNTRL_1, priv->vip_cntrl_1);
+ reg_write(priv, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
+
+ priv->is_on = true;
+ }
+}
+
+static void tda998x_bridge_disable(struct drm_bridge *bridge)
+{
+ struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+
+ if (priv->is_on) {
+ /* disable video ports */
+ reg_write(priv, REG_ENA_VP_0, 0x00);
+ reg_write(priv, REG_ENA_VP_1, 0x00);
+ reg_write(priv, REG_ENA_VP_2, 0x00);
+
+ priv->is_on = false;
+ }
+}
+
+static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
+ unsigned long tmds_clock;
+ u16 ref_pix, ref_line, n_pix, n_line;
+ u16 hs_pix_s, hs_pix_e;
+ u16 vs1_pix_s, vs1_pix_e, vs1_line_s, vs1_line_e;
+ u16 vs2_pix_s, vs2_pix_e, vs2_line_s, vs2_line_e;
+ u16 vwin1_line_s, vwin1_line_e;
+ u16 vwin2_line_s, vwin2_line_e;
+ u16 de_pix_s, de_pix_e;
+ u8 reg, div, rep;
+
+ /*
+ * Internally TDA998x is using ITU-R BT.656 style sync but
+ * we get VESA style sync. TDA998x is using a reference pixel
+ * relative to ITU to sync to the input frame and for output
+ * sync generation. Currently, we are using reference detection
+ * from HS/VS, i.e. REFPIX/REFLINE denote frame start sync point
+ * which is position of rising VS with coincident rising HS.
+ *
+ * Now there is some issues to take care of:
+ * - HDMI data islands require sync-before-active
+ * - TDA998x register values must be > 0 to be enabled
+ * - REFLINE needs an additional offset of +1
+ * - REFPIX needs an addtional offset of +1 for UYUV and +3 for RGB
+ *
+ * So we add +1 to all horizontal and vertical register values,
+ * plus an additional +3 for REFPIX as we are using RGB input only.
+ */
+ n_pix = mode->htotal;
+ n_line = mode->vtotal;
+
+ hs_pix_e = mode->hsync_end - mode->hdisplay;
+ hs_pix_s = mode->hsync_start - mode->hdisplay;
+ de_pix_e = mode->htotal;
+ de_pix_s = mode->htotal - mode->hdisplay;
+ ref_pix = 3 + hs_pix_s;
+
+ /*
+ * Attached LCD controllers may generate broken sync. Allow
+ * those to adjust the position of the rising VS edge by adding
+ * HSKEW to ref_pix.
+ */
+ if (adjusted_mode->flags & DRM_MODE_FLAG_HSKEW)
+ ref_pix += adjusted_mode->hskew;
+
+ if ((mode->flags & DRM_MODE_FLAG_INTERLACE) == 0) {
+ ref_line = 1 + mode->vsync_start - mode->vdisplay;
+ vwin1_line_s = mode->vtotal - mode->vdisplay - 1;
+ vwin1_line_e = vwin1_line_s + mode->vdisplay;
+ vs1_pix_s = vs1_pix_e = hs_pix_s;
+ vs1_line_s = mode->vsync_start - mode->vdisplay;
+ vs1_line_e = vs1_line_s +
+ mode->vsync_end - mode->vsync_start;
+ vwin2_line_s = vwin2_line_e = 0;
+ vs2_pix_s = vs2_pix_e = 0;
+ vs2_line_s = vs2_line_e = 0;
+ } else {
+ ref_line = 1 + (mode->vsync_start - mode->vdisplay)/2;
+ vwin1_line_s = (mode->vtotal - mode->vdisplay)/2;
+ vwin1_line_e = vwin1_line_s + mode->vdisplay/2;
+ vs1_pix_s = vs1_pix_e = hs_pix_s;
+ vs1_line_s = (mode->vsync_start - mode->vdisplay)/2;
+ vs1_line_e = vs1_line_s +
+ (mode->vsync_end - mode->vsync_start)/2;
+ vwin2_line_s = vwin1_line_s + mode->vtotal/2;
+ vwin2_line_e = vwin2_line_s + mode->vdisplay/2;
+ vs2_pix_s = vs2_pix_e = hs_pix_s + mode->htotal/2;
+ vs2_line_s = vs1_line_s + mode->vtotal/2 ;
+ vs2_line_e = vs2_line_s +
+ (mode->vsync_end - mode->vsync_start)/2;
+ }
+
+ tmds_clock = mode->clock;
+
+ /*
+ * The divisor is power-of-2. The TDA9983B datasheet gives
+ * this as ranges of Msample/s, which is 10x the TMDS clock:
+ * 0 - 800 to 1500 Msample/s
+ * 1 - 400 to 800 Msample/s
+ * 2 - 200 to 400 Msample/s
+ * 3 - as 2 above
+ */
+ for (div = 0; div < 3; div++)
+ if (80000 >> div <= tmds_clock)
+ break;
+
+ mutex_lock(&priv->audio_mutex);
+
+ /* mute the audio FIFO: */
+ reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
+
+ /* set HDMI HDCP mode off: */
+ reg_write(priv, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
+ reg_clear(priv, REG_TX33, TX33_HDMI);
+ reg_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(0));
+
+ /* no pre-filter or interpolator: */
+ reg_write(priv, REG_HVF_CNTRL_0, HVF_CNTRL_0_PREFIL(0) |
+ HVF_CNTRL_0_INTPOL(0));
+ reg_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_PREFILT);
+ reg_write(priv, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
+ reg_write(priv, REG_VIP_CNTRL_4, VIP_CNTRL_4_BLANKIT(0) |
+ VIP_CNTRL_4_BLC(0));
+
+ reg_clear(priv, REG_PLL_SERIAL_1, PLL_SERIAL_1_SRL_MAN_IZ);
+ reg_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR |
+ PLL_SERIAL_3_SRL_DE);
+ reg_write(priv, REG_SERIALIZER, 0);
+ reg_write(priv, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
+
+ /* TODO enable pixel repeat for pixel rates less than 25Msamp/s */
+ rep = 0;
+ reg_write(priv, REG_RPT_CNTRL, 0);
+ reg_write(priv, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
+ SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
+
+ reg_write(priv, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(div) |
+ PLL_SERIAL_2_SRL_PR(rep));
+
+ /* set color matrix bypass flag: */
+ reg_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
+ MAT_CONTRL_MAT_SC(1));
+ reg_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
+
+ /* set BIAS tmds value: */
+ reg_write(priv, REG_ANA_GENERAL, 0x09);
+
+ /*
+ * Sync on rising HSYNC/VSYNC
+ */
+ reg = VIP_CNTRL_3_SYNC_HS;
+
+ /*
+ * TDA19988 requires high-active sync at input stage,
+ * so invert low-active sync provided by master encoder here
+ */
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+ reg |= VIP_CNTRL_3_H_TGL;
+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+ reg |= VIP_CNTRL_3_V_TGL;
+ reg_write(priv, REG_VIP_CNTRL_3, reg);
+
+ reg_write(priv, REG_VIDFORMAT, 0x00);
+ reg_write16(priv, REG_REFPIX_MSB, ref_pix);
+ reg_write16(priv, REG_REFLINE_MSB, ref_line);
+ reg_write16(priv, REG_NPIX_MSB, n_pix);
+ reg_write16(priv, REG_NLINE_MSB, n_line);
+ reg_write16(priv, REG_VS_LINE_STRT_1_MSB, vs1_line_s);
+ reg_write16(priv, REG_VS_PIX_STRT_1_MSB, vs1_pix_s);
+ reg_write16(priv, REG_VS_LINE_END_1_MSB, vs1_line_e);
+ reg_write16(priv, REG_VS_PIX_END_1_MSB, vs1_pix_e);
+ reg_write16(priv, REG_VS_LINE_STRT_2_MSB, vs2_line_s);
+ reg_write16(priv, REG_VS_PIX_STRT_2_MSB, vs2_pix_s);
+ reg_write16(priv, REG_VS_LINE_END_2_MSB, vs2_line_e);
+ reg_write16(priv, REG_VS_PIX_END_2_MSB, vs2_pix_e);
+ reg_write16(priv, REG_HS_PIX_START_MSB, hs_pix_s);
+ reg_write16(priv, REG_HS_PIX_STOP_MSB, hs_pix_e);
+ reg_write16(priv, REG_VWIN_START_1_MSB, vwin1_line_s);
+ reg_write16(priv, REG_VWIN_END_1_MSB, vwin1_line_e);
+ reg_write16(priv, REG_VWIN_START_2_MSB, vwin2_line_s);
+ reg_write16(priv, REG_VWIN_END_2_MSB, vwin2_line_e);
+ reg_write16(priv, REG_DE_START_MSB, de_pix_s);
+ reg_write16(priv, REG_DE_STOP_MSB, de_pix_e);
+
+ if (priv->rev == TDA19988) {
+ /* let incoming pixels fill the active space (if any) */
+ reg_write(priv, REG_ENABLE_SPACE, 0x00);
+ }
+
+ /*
+ * Always generate sync polarity relative to input sync and
+ * revert input stage toggled sync at output stage
+ */
+ reg = TBG_CNTRL_1_DWIN_DIS | TBG_CNTRL_1_TGL_EN;
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+ reg |= TBG_CNTRL_1_H_TGL;
+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+ reg |= TBG_CNTRL_1_V_TGL;
+ reg_write(priv, REG_TBG_CNTRL_1, reg);
+
+ /* must be last register set: */
+ reg_write(priv, REG_TBG_CNTRL_0, 0);
+
+ priv->tmds_clock = adjusted_mode->clock;
+
+ /* CEA-861B section 6 says that:
+ * CEA version 1 (CEA-861) has no support for infoframes.
+ * CEA version 2 (CEA-861A) supports version 1 AVI infoframes,
+ * and optional basic audio.
+ * CEA version 3 (CEA-861B) supports version 1 and 2 AVI infoframes,
+ * and optional digital audio, with audio infoframes.
+ *
+ * Since we only support generation of version 2 AVI infoframes,
+ * ignore CEA version 2 and below (iow, behave as if we're a
+ * CEA-861 source.)
+ */
+ priv->supports_infoframes = priv->connector.display_info.cea_rev >= 3;
+
+ if (priv->supports_infoframes) {
+ /* We need to turn HDMI HDCP stuff on to get audio through */
+ reg &= ~TBG_CNTRL_1_DWIN_DIS;
+ reg_write(priv, REG_TBG_CNTRL_1, reg);
+ reg_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
+ reg_set(priv, REG_TX33, TX33_HDMI);
+
+ tda998x_write_avi(priv, adjusted_mode);
+
+ if (priv->audio_params.format != AFMT_UNUSED &&
+ priv->sink_has_audio)
+ tda998x_configure_audio(priv, &priv->audio_params);
+ }
+
+ mutex_unlock(&priv->audio_mutex);
+}
+
+static const struct drm_bridge_funcs tda998x_bridge_funcs = {
+ .attach = tda998x_bridge_attach,
+ .detach = tda998x_bridge_detach,
+ .mode_valid = tda998x_bridge_mode_valid,
+ .disable = tda998x_bridge_disable,
+ .mode_set = tda998x_bridge_mode_set,
+ .enable = tda998x_bridge_enable,
+};
+
+/* I2C driver functions */
+
+static int tda998x_get_audio_ports(struct tda998x_priv *priv,
+ struct device_node *np)
+{
+ const u32 *port_data;
+ u32 size;
+ int i;
+
+ port_data = of_get_property(np, "audio-ports", &size);
+ if (!port_data)
+ return 0;
+
+ size /= sizeof(u32);
+ if (size > 2 * ARRAY_SIZE(priv->audio_port) || size % 2 != 0) {
+ dev_err(&priv->hdmi->dev,
+ "Bad number of elements in audio-ports dt-property\n");
+ return -EINVAL;
+ }
+
+ size /= 2;
+
+ for (i = 0; i < size; i++) {
+ u8 afmt = be32_to_cpup(&port_data[2*i]);
+ u8 ena_ap = be32_to_cpup(&port_data[2*i+1]);
+
+ if (afmt != AFMT_SPDIF && afmt != AFMT_I2S) {
+ dev_err(&priv->hdmi->dev,
+ "Bad audio format %u\n", afmt);
+ return -EINVAL;
+ }
+
+ priv->audio_port[i].format = afmt;
+ priv->audio_port[i].config = ena_ap;
+ }
+
+ if (priv->audio_port[0].format == priv->audio_port[1].format) {
+ dev_err(&priv->hdmi->dev,
+ "There can only be on I2S port and one SPDIF port\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void tda998x_set_config(struct tda998x_priv *priv,
+ const struct tda998x_encoder_params *p)
+{
+ priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(p->swap_a) |
+ (p->mirr_a ? VIP_CNTRL_0_MIRR_A : 0) |
+ VIP_CNTRL_0_SWAP_B(p->swap_b) |
+ (p->mirr_b ? VIP_CNTRL_0_MIRR_B : 0);
+ priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(p->swap_c) |
+ (p->mirr_c ? VIP_CNTRL_1_MIRR_C : 0) |
+ VIP_CNTRL_1_SWAP_D(p->swap_d) |
+ (p->mirr_d ? VIP_CNTRL_1_MIRR_D : 0);
+ priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(p->swap_e) |
+ (p->mirr_e ? VIP_CNTRL_2_MIRR_E : 0) |
+ VIP_CNTRL_2_SWAP_F(p->swap_f) |
+ (p->mirr_f ? VIP_CNTRL_2_MIRR_F : 0);
+
+ priv->audio_params = p->audio_params;
+}
+
+static void tda998x_destroy(struct device *dev)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+
+ drm_bridge_remove(&priv->bridge);
+
+ /* disable all IRQs and free the IRQ handler */
+ cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
+ reg_clear(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
+
+ if (priv->audio_pdev)
+ platform_device_unregister(priv->audio_pdev);
+
+ if (priv->hdmi->irq)
+ free_irq(priv->hdmi->irq, priv);
+
+ del_timer_sync(&priv->edid_delay_timer);
+ cancel_work_sync(&priv->detect_work);
+
+ i2c_unregister_device(priv->cec);
+
+ if (priv->cec_notify)
+ cec_notifier_put(priv->cec_notify);
+}
+
+static int tda998x_create(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct device_node *np = client->dev.of_node;
+ struct i2c_board_info cec_info;
+ struct tda998x_priv *priv;
+ u32 video;
+ int rev_lo, rev_hi, ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, priv);
+
+ mutex_init(&priv->mutex); /* protect the page access */
+ mutex_init(&priv->audio_mutex); /* protect access from audio thread */
+ mutex_init(&priv->edid_mutex);
+ INIT_LIST_HEAD(&priv->bridge.list);
+ init_waitqueue_head(&priv->edid_delay_waitq);
+ timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
+ INIT_WORK(&priv->detect_work, tda998x_detect_work);
+
+ priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
+ priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
+ priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
+
+ /* CEC I2C address bound to TDA998x I2C addr by configuration pins */
+ priv->cec_addr = 0x34 + (client->addr & 0x03);
+ priv->current_page = 0xff;
+ priv->hdmi = client;
+
+ /* wake up the device: */
+ cec_write(priv, REG_CEC_ENAMODS,
+ CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
+
+ tda998x_reset(priv);
+
+ /* read version: */
+ rev_lo = reg_read(priv, REG_VERSION_LSB);
+ if (rev_lo < 0) {
+ dev_err(dev, "failed to read version: %d\n", rev_lo);
+ return rev_lo;
+ }
+
+ rev_hi = reg_read(priv, REG_VERSION_MSB);
+ if (rev_hi < 0) {
+ dev_err(dev, "failed to read version: %d\n", rev_hi);
+ return rev_hi;
+ }
+
+ priv->rev = rev_lo | rev_hi << 8;
+
+ /* mask off feature bits: */
+ priv->rev &= ~0x30; /* not-hdcp and not-scalar bit */
+
+ switch (priv->rev) {
+ case TDA9989N2:
+ dev_info(dev, "found TDA9989 n2");
+ break;
+ case TDA19989:
+ dev_info(dev, "found TDA19989");
+ break;
+ case TDA19989N2:
+ dev_info(dev, "found TDA19989 n2");
+ break;
+ case TDA19988:
+ dev_info(dev, "found TDA19988");
+ break;
+ default:
+ dev_err(dev, "found unsupported device: %04x\n", priv->rev);
+ return -ENXIO;
+ }
+
+ /* after reset, enable DDC: */
+ reg_write(priv, REG_DDC_DISABLE, 0x00);
+
+ /* set clock on DDC channel: */
+ reg_write(priv, REG_TX3, 39);
+
+ /* if necessary, disable multi-master: */
+ if (priv->rev == TDA19989)
+ reg_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
+
+ cec_write(priv, REG_CEC_FRO_IM_CLK_CTRL,
+ CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
+
+ /* ensure interrupts are disabled */
+ cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
+
+ /* clear pending interrupts */
+ cec_read(priv, REG_CEC_RXSHPDINT);
+ reg_read(priv, REG_INT_FLAGS_0);
+ reg_read(priv, REG_INT_FLAGS_1);
+ reg_read(priv, REG_INT_FLAGS_2);
+
+ /* initialize the optional IRQ */
+ if (client->irq) {
+ unsigned long irq_flags;
+
+ /* init read EDID waitqueue and HDP work */
+ init_waitqueue_head(&priv->wq_edid);
+
+ irq_flags =
+ irqd_get_trigger_type(irq_get_irq_data(client->irq));
+
+ priv->cec_glue.irq_flags = irq_flags;
+
+ irq_flags |= IRQF_SHARED | IRQF_ONESHOT;
+ ret = request_threaded_irq(client->irq, NULL,
+ tda998x_irq_thread, irq_flags,
+ "tda998x", priv);
+ if (ret) {
+ dev_err(dev, "failed to request IRQ#%u: %d\n",
+ client->irq, ret);
+ goto err_irq;
+ }
+
+ /* enable HPD irq */
+ cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
+ }
+
+ priv->cec_notify = cec_notifier_get(dev);
+ if (!priv->cec_notify) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ priv->cec_glue.parent = dev;
+ priv->cec_glue.data = priv;
+ priv->cec_glue.init = tda998x_cec_hook_init;
+ priv->cec_glue.exit = tda998x_cec_hook_exit;
+ priv->cec_glue.open = tda998x_cec_hook_open;
+ priv->cec_glue.release = tda998x_cec_hook_release;
+
+ /*
+ * Some TDA998x are actually two I2C devices merged onto one piece
+ * of silicon: TDA9989 and TDA19989 combine the HDMI transmitter
+ * with a slightly modified TDA9950 CEC device. The CEC device
+ * is at the TDA9950 address, with the address pins strapped across
+ * to the TDA998x address pins. Hence, it always has the same
+ * offset.
+ */
+ memset(&cec_info, 0, sizeof(cec_info));
+ strlcpy(cec_info.type, "tda9950", sizeof(cec_info.type));
+ cec_info.addr = priv->cec_addr;
+ cec_info.platform_data = &priv->cec_glue;
+ cec_info.irq = client->irq;
+
+ priv->cec = i2c_new_device(client->adapter, &cec_info);
+ if (!priv->cec) {
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ /* enable EDID read irq: */
+ reg_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
+
+ if (np) {
+ /* get the device tree parameters */
+ ret = of_property_read_u32(np, "video-ports", &video);
+ if (ret == 0) {
+ priv->vip_cntrl_0 = video >> 16;
+ priv->vip_cntrl_1 = video >> 8;
+ priv->vip_cntrl_2 = video;
+ }
+
+ ret = tda998x_get_audio_ports(priv, np);
+ if (ret)
+ goto fail;
+
+ if (priv->audio_port[0].format != AFMT_UNUSED)
+ tda998x_audio_codec_init(priv, &client->dev);
+ } else if (dev->platform_data) {
+ tda998x_set_config(priv, dev->platform_data);
+ }
+
+ priv->bridge.funcs = &tda998x_bridge_funcs;
+#ifdef CONFIG_OF
+ priv->bridge.of_node = dev->of_node;
+#endif
+
+ drm_bridge_add(&priv->bridge);
+
+ return 0;
+
+fail:
+ tda998x_destroy(dev);
+err_irq:
+ return ret;
+}
+
+/* DRM encoder functions */
+
+static void tda998x_encoder_destroy(struct drm_encoder *encoder)
+{
+ drm_encoder_cleanup(encoder);
+}
+
+static const struct drm_encoder_funcs tda998x_encoder_funcs = {
+ .destroy = tda998x_encoder_destroy,
+};
+
+static int tda998x_encoder_init(struct device *dev, struct drm_device *drm)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+ u32 crtcs = 0;
+ int ret;
+
+ if (dev->of_node)
+ crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
+
+ /* If no CRTCs were found, fall back to our old behaviour */
+ if (crtcs == 0) {
+ dev_warn(dev, "Falling back to first CRTC\n");
+ crtcs = 1 << 0;
+ }
+
+ priv->encoder.possible_crtcs = crtcs;
+
+ ret = drm_encoder_init(drm, &priv->encoder, &tda998x_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS, NULL);
+ if (ret)
+ goto err_encoder;
+
+ ret = drm_bridge_attach(&priv->encoder, &priv->bridge, NULL);
+ if (ret)
+ goto err_bridge;
+
+ return 0;
+
+err_bridge:
+ drm_encoder_cleanup(&priv->encoder);
+err_encoder:
+ return ret;
+}
+
+static int tda998x_bind(struct device *dev, struct device *master, void *data)
+{
+ struct drm_device *drm = data;
+
+ return tda998x_encoder_init(dev, drm);
+}
+
+static void tda998x_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct tda998x_priv *priv = dev_get_drvdata(dev);
+
+ drm_encoder_cleanup(&priv->encoder);
+}
+
+static const struct component_ops tda998x_ops = {
+ .bind = tda998x_bind,
+ .unbind = tda998x_unbind,
+};
+
+static int
+tda998x_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ int ret;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_warn(&client->dev, "adapter does not support I2C\n");
+ return -EIO;
+ }
+
+ ret = tda998x_create(&client->dev);
+ if (ret)
+ return ret;
+
+ ret = component_add(&client->dev, &tda998x_ops);
+ if (ret)
+ tda998x_destroy(&client->dev);
+ return ret;
+}
+
+static int tda998x_remove(struct i2c_client *client)
+{
+ component_del(&client->dev, &tda998x_ops);
+ tda998x_destroy(&client->dev);
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id tda998x_dt_ids[] = {
+ { .compatible = "nxp,tda998x", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, tda998x_dt_ids);
+#endif
+
+static const struct i2c_device_id tda998x_ids[] = {
+ { "tda998x", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tda998x_ids);
+
+static struct i2c_driver tda998x_driver = {
+ .probe = tda998x_probe,
+ .remove = tda998x_remove,
+ .driver = {
+ .name = "tda998x",
+ .of_match_table = of_match_ptr(tda998x_dt_ids),
+ },
+ .id_table = tda998x_ids,
+};
+
+module_i2c_driver(tda998x_driver);
+
+MODULE_AUTHOR("Rob Clark <robdclark@gmail.com");
+MODULE_DESCRIPTION("NXP Semiconductors TDA998X HDMI Encoder");
+MODULE_LICENSE("GPL");