v4.19.13 snapshot.
diff --git a/include/drm/tinydrm/mipi-dbi.h b/include/drm/tinydrm/mipi-dbi.h
new file mode 100644
index 0000000..b8ba588
--- /dev/null
+++ b/include/drm/tinydrm/mipi-dbi.h
@@ -0,0 +1,108 @@
+/*
+ * MIPI Display Bus Interface (DBI) LCD controller support
+ *
+ * Copyright 2016 Noralf Trønnes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_MIPI_DBI_H
+#define __LINUX_MIPI_DBI_H
+
+#include <drm/tinydrm/tinydrm.h>
+
+struct spi_device;
+struct gpio_desc;
+struct regulator;
+
+/**
+ * struct mipi_dbi - MIPI DBI controller
+ * @tinydrm: tinydrm base
+ * @spi: SPI device
+ * @enabled: Pipeline is enabled
+ * @cmdlock: Command lock
+ * @command: Bus specific callback executing commands.
+ * @read_commands: Array of read commands terminated by a zero entry.
+ * Reading is disabled if this is NULL.
+ * @dc: Optional D/C gpio.
+ * @tx_buf: Buffer used for transfer (copy clip rect area)
+ * @tx_buf9: Buffer used for Option 1 9-bit conversion
+ * @tx_buf9_len: Size of tx_buf9.
+ * @swap_bytes: Swap bytes in buffer before transfer
+ * @reset: Optional reset gpio
+ * @rotation: initial rotation in degrees Counter Clock Wise
+ * @backlight: backlight device (optional)
+ * @regulator: power regulator (optional)
+ */
+struct mipi_dbi {
+ struct tinydrm_device tinydrm;
+ struct spi_device *spi;
+ bool enabled;
+ struct mutex cmdlock;
+ int (*command)(struct mipi_dbi *mipi, u8 cmd, u8 *param, size_t num);
+ const u8 *read_commands;
+ struct gpio_desc *dc;
+ u16 *tx_buf;
+ void *tx_buf9;
+ size_t tx_buf9_len;
+ bool swap_bytes;
+ struct gpio_desc *reset;
+ unsigned int rotation;
+ struct backlight_device *backlight;
+ struct regulator *regulator;
+};
+
+static inline struct mipi_dbi *
+mipi_dbi_from_tinydrm(struct tinydrm_device *tdev)
+{
+ return container_of(tdev, struct mipi_dbi, tinydrm);
+}
+
+int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi,
+ struct gpio_desc *dc);
+int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
+ const struct drm_simple_display_pipe_funcs *pipe_funcs,
+ struct drm_driver *driver,
+ const struct drm_display_mode *mode, unsigned int rotation);
+void mipi_dbi_enable_flush(struct mipi_dbi *mipi,
+ struct drm_crtc_state *crtc_state,
+ struct drm_plane_state *plan_state);
+void mipi_dbi_pipe_disable(struct drm_simple_display_pipe *pipe);
+void mipi_dbi_hw_reset(struct mipi_dbi *mipi);
+bool mipi_dbi_display_is_on(struct mipi_dbi *mipi);
+int mipi_dbi_poweron_reset(struct mipi_dbi *mipi);
+int mipi_dbi_poweron_conditional_reset(struct mipi_dbi *mipi);
+u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len);
+
+int mipi_dbi_command_read(struct mipi_dbi *mipi, u8 cmd, u8 *val);
+int mipi_dbi_command_buf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len);
+int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
+ struct drm_clip_rect *clip, bool swap);
+/**
+ * mipi_dbi_command - MIPI DCS command with optional parameter(s)
+ * @mipi: MIPI structure
+ * @cmd: Command
+ * @seq...: Optional parameter(s)
+ *
+ * Send MIPI DCS command to the controller. Use mipi_dbi_command_read() for
+ * get/read.
+ *
+ * Returns:
+ * Zero on success, negative error code on failure.
+ */
+#define mipi_dbi_command(mipi, cmd, seq...) \
+({ \
+ u8 d[] = { seq }; \
+ mipi_dbi_command_buf(mipi, cmd, d, ARRAY_SIZE(d)); \
+})
+
+#ifdef CONFIG_DEBUG_FS
+int mipi_dbi_debugfs_init(struct drm_minor *minor);
+#else
+#define mipi_dbi_debugfs_init NULL
+#endif
+
+#endif /* __LINUX_MIPI_DBI_H */
diff --git a/include/drm/tinydrm/tinydrm-helpers.h b/include/drm/tinydrm/tinydrm-helpers.h
new file mode 100644
index 0000000..5b96f0b
--- /dev/null
+++ b/include/drm/tinydrm/tinydrm-helpers.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 Noralf Trønnes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_TINYDRM_HELPERS_H
+#define __LINUX_TINYDRM_HELPERS_H
+
+struct backlight_device;
+struct tinydrm_device;
+struct drm_clip_rect;
+struct spi_transfer;
+struct spi_message;
+struct spi_device;
+struct device;
+
+/**
+ * tinydrm_machine_little_endian - Machine is little endian
+ *
+ * Returns:
+ * true if *defined(__LITTLE_ENDIAN)*, false otherwise
+ */
+static inline bool tinydrm_machine_little_endian(void)
+{
+#if defined(__LITTLE_ENDIAN)
+ return true;
+#else
+ return false;
+#endif
+}
+
+bool tinydrm_merge_clips(struct drm_clip_rect *dst,
+ struct drm_clip_rect *src, unsigned int num_clips,
+ unsigned int flags, u32 max_width, u32 max_height);
+int tinydrm_fb_dirty(struct drm_framebuffer *fb,
+ struct drm_file *file_priv,
+ unsigned int flags, unsigned int color,
+ struct drm_clip_rect *clips,
+ unsigned int num_clips);
+void tinydrm_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
+ struct drm_clip_rect *clip);
+void tinydrm_swab16(u16 *dst, void *vaddr, struct drm_framebuffer *fb,
+ struct drm_clip_rect *clip);
+void tinydrm_xrgb8888_to_rgb565(u16 *dst, void *vaddr,
+ struct drm_framebuffer *fb,
+ struct drm_clip_rect *clip, bool swap);
+void tinydrm_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb,
+ struct drm_clip_rect *clip);
+
+size_t tinydrm_spi_max_transfer_size(struct spi_device *spi, size_t max_len);
+bool tinydrm_spi_bpw_supported(struct spi_device *spi, u8 bpw);
+int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz,
+ struct spi_transfer *header, u8 bpw, const void *buf,
+ size_t len);
+void _tinydrm_dbg_spi_message(struct spi_device *spi, struct spi_message *m);
+
+#ifdef DEBUG
+/**
+ * tinydrm_dbg_spi_message - Dump SPI message
+ * @spi: SPI device
+ * @m: SPI message
+ *
+ * Dumps info about the transfers in a SPI message including buffer content.
+ * DEBUG has to be defined for this function to be enabled alongside setting
+ * the DRM_UT_DRIVER bit of &drm_debug.
+ */
+static inline void tinydrm_dbg_spi_message(struct spi_device *spi,
+ struct spi_message *m)
+{
+ if (drm_debug & DRM_UT_DRIVER)
+ _tinydrm_dbg_spi_message(spi, m);
+}
+#else
+static inline void tinydrm_dbg_spi_message(struct spi_device *spi,
+ struct spi_message *m)
+{
+}
+#endif /* DEBUG */
+
+#endif /* __LINUX_TINYDRM_HELPERS_H */
diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h
new file mode 100644
index 0000000..fe9827d
--- /dev/null
+++ b/include/drm/tinydrm/tinydrm.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2016 Noralf Trønnes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_TINYDRM_H
+#define __LINUX_TINYDRM_H
+
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_simple_kms_helper.h>
+
+/**
+ * struct tinydrm_device - tinydrm device
+ */
+struct tinydrm_device {
+ /**
+ * @drm: DRM device
+ */
+ struct drm_device *drm;
+
+ /**
+ * @pipe: Display pipe structure
+ */
+ struct drm_simple_display_pipe pipe;
+
+ /**
+ * @dirty_lock: Serializes framebuffer flushing
+ */
+ struct mutex dirty_lock;
+
+ /**
+ * @fb_funcs: Framebuffer functions used when creating framebuffers
+ */
+ const struct drm_framebuffer_funcs *fb_funcs;
+
+ /**
+ * @fb_dirty: Framebuffer dirty callback
+ */
+ int (*fb_dirty)(struct drm_framebuffer *framebuffer,
+ struct drm_file *file_priv, unsigned flags,
+ unsigned color, struct drm_clip_rect *clips,
+ unsigned num_clips);
+};
+
+static inline struct tinydrm_device *
+pipe_to_tinydrm(struct drm_simple_display_pipe *pipe)
+{
+ return container_of(pipe, struct tinydrm_device, pipe);
+}
+
+/**
+ * TINYDRM_GEM_DRIVER_OPS - default tinydrm gem operations
+ *
+ * This macro provides a shortcut for setting the tinydrm GEM operations in
+ * the &drm_driver structure.
+ */
+#define TINYDRM_GEM_DRIVER_OPS \
+ .gem_free_object_unlocked = tinydrm_gem_cma_free_object, \
+ .gem_print_info = drm_gem_cma_print_info, \
+ .gem_vm_ops = &drm_gem_cma_vm_ops, \
+ .prime_handle_to_fd = drm_gem_prime_handle_to_fd, \
+ .prime_fd_to_handle = drm_gem_prime_fd_to_handle, \
+ .gem_prime_import = drm_gem_prime_import, \
+ .gem_prime_export = drm_gem_prime_export, \
+ .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, \
+ .gem_prime_import_sg_table = tinydrm_gem_cma_prime_import_sg_table, \
+ .gem_prime_vmap = drm_gem_cma_prime_vmap, \
+ .gem_prime_vunmap = drm_gem_cma_prime_vunmap, \
+ .gem_prime_mmap = drm_gem_cma_prime_mmap, \
+ .dumb_create = drm_gem_cma_dumb_create
+
+/**
+ * TINYDRM_MODE - tinydrm display mode
+ * @hd: Horizontal resolution, width
+ * @vd: Vertical resolution, height
+ * @hd_mm: Display width in millimeters
+ * @vd_mm: Display height in millimeters
+ *
+ * This macro creates a &drm_display_mode for use with tinydrm.
+ */
+#define TINYDRM_MODE(hd, vd, hd_mm, vd_mm) \
+ .hdisplay = (hd), \
+ .hsync_start = (hd), \
+ .hsync_end = (hd), \
+ .htotal = (hd), \
+ .vdisplay = (vd), \
+ .vsync_start = (vd), \
+ .vsync_end = (vd), \
+ .vtotal = (vd), \
+ .width_mm = (hd_mm), \
+ .height_mm = (vd_mm), \
+ .type = DRM_MODE_TYPE_DRIVER, \
+ .clock = 1 /* pass validation */
+
+void tinydrm_gem_cma_free_object(struct drm_gem_object *gem_obj);
+struct drm_gem_object *
+tinydrm_gem_cma_prime_import_sg_table(struct drm_device *drm,
+ struct dma_buf_attachment *attach,
+ struct sg_table *sgt);
+int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
+ const struct drm_framebuffer_funcs *fb_funcs,
+ struct drm_driver *driver);
+int devm_tinydrm_register(struct tinydrm_device *tdev);
+void tinydrm_shutdown(struct tinydrm_device *tdev);
+
+void tinydrm_display_pipe_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *old_state);
+int
+tinydrm_display_pipe_init(struct tinydrm_device *tdev,
+ const struct drm_simple_display_pipe_funcs *funcs,
+ int connector_type,
+ const uint32_t *formats,
+ unsigned int format_count,
+ const struct drm_display_mode *mode,
+ unsigned int rotation);
+
+#endif /* __LINUX_TINYDRM_H */