Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/soc/adi/Kconfig b/sound/soc/adi/Kconfig
index dd763f5..e321e3b 100644
--- a/sound/soc/adi/Kconfig
+++ b/sound/soc/adi/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config SND_SOC_ADI
tristate "Audio support for Analog Devices reference designs"
depends on MICROBLAZE || ARCH_ZYNQ || COMPILE_TEST
diff --git a/sound/soc/adi/Makefile b/sound/soc/adi/Makefile
index 64456c1..125f667 100644
--- a/sound/soc/adi/Makefile
+++ b/sound/soc/adi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
snd-soc-adi-axi-i2s-objs := axi-i2s.o
snd-soc-adi-axi-spdif-objs := axi-spdif.o
diff --git a/sound/soc/adi/axi-i2s.c b/sound/soc/adi/axi-i2s.c
index 4c23381..8c4dc82 100644
--- a/sound/soc/adi/axi-i2s.c
+++ b/sound/soc/adi/axi-i2s.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012-2013, Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
*/
#include <linux/clk.h>
@@ -43,6 +42,9 @@
struct clk *clk;
struct clk *clk_ref;
+ bool has_capture;
+ bool has_playback;
+
struct snd_soc_dai_driver dai_driver;
struct snd_dmaengine_dai_dma_data capture_dma_data;
@@ -136,8 +138,10 @@
{
struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);
- snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data,
- &i2s->capture_dma_data);
+ snd_soc_dai_init_dma_data(
+ dai,
+ i2s->has_playback ? &i2s->playback_dma_data : NULL,
+ i2s->has_capture ? &i2s->capture_dma_data : NULL);
return 0;
}
@@ -151,18 +155,6 @@
static struct snd_soc_dai_driver axi_i2s_dai = {
.probe = axi_i2s_dai_probe,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_KNOT,
- .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE,
- },
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_KNOT,
- .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE,
- },
.ops = &axi_i2s_dai_ops,
.symmetric_rates = 1,
};
@@ -178,6 +170,19 @@
.max_register = AXI_I2S_REG_STATUS,
};
+static void axi_i2s_parse_of(struct axi_i2s *i2s, const struct device_node *np)
+{
+ struct property *dma_names;
+ const char *dma_name;
+
+ of_property_for_each_string(np, "dma-names", dma_names, dma_name) {
+ if (strcmp(dma_name, "rx") == 0)
+ i2s->has_capture = true;
+ if (strcmp(dma_name, "tx") == 0)
+ i2s->has_playback = true;
+ }
+}
+
static int axi_i2s_probe(struct platform_device *pdev)
{
struct resource *res;
@@ -191,6 +196,8 @@
platform_set_drvdata(pdev, i2s);
+ axi_i2s_parse_of(i2s, pdev->dev.of_node);
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
@@ -213,13 +220,29 @@
if (ret)
return ret;
- i2s->playback_dma_data.addr = res->start + AXI_I2S_REG_TX_FIFO;
- i2s->playback_dma_data.addr_width = 4;
- i2s->playback_dma_data.maxburst = 1;
+ if (i2s->has_playback) {
+ axi_i2s_dai.playback.channels_min = 2;
+ axi_i2s_dai.playback.channels_max = 2;
+ axi_i2s_dai.playback.rates = SNDRV_PCM_RATE_KNOT;
+ axi_i2s_dai.playback.formats =
+ SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE;
- i2s->capture_dma_data.addr = res->start + AXI_I2S_REG_RX_FIFO;
- i2s->capture_dma_data.addr_width = 4;
- i2s->capture_dma_data.maxburst = 1;
+ i2s->playback_dma_data.addr = res->start + AXI_I2S_REG_TX_FIFO;
+ i2s->playback_dma_data.addr_width = 4;
+ i2s->playback_dma_data.maxburst = 1;
+ }
+
+ if (i2s->has_capture) {
+ axi_i2s_dai.capture.channels_min = 2;
+ axi_i2s_dai.capture.channels_max = 2;
+ axi_i2s_dai.capture.rates = SNDRV_PCM_RATE_KNOT;
+ axi_i2s_dai.capture.formats =
+ SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE;
+
+ i2s->capture_dma_data.addr = res->start + AXI_I2S_REG_RX_FIFO;
+ i2s->capture_dma_data.addr_width = 4;
+ i2s->capture_dma_data.maxburst = 1;
+ }
i2s->ratnum.num = clk_get_rate(i2s->clk_ref) / 2 / AXI_I2S_BITS_PER_FRAME;
i2s->ratnum.den_step = 1;
@@ -240,6 +263,10 @@
if (ret)
goto err_clk_disable;
+ dev_info(&pdev->dev, "probed, capture %s, playback %s\n",
+ i2s->has_capture ? "enabled" : "disabled",
+ i2s->has_playback ? "enabled" : "disabled");
+
return 0;
err_clk_disable:
diff --git a/sound/soc/adi/axi-spdif.c b/sound/soc/adi/axi-spdif.c
index d7259d4..9b3d81c 100644
--- a/sound/soc/adi/axi-spdif.c
+++ b/sound/soc/adi/axi-spdif.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012-2013, Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
*/
#include <linux/init.h>