From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Tue, 17 Jan 2017 13:16:42 +0000 (+0100)
Subject: ASoC: Revert "samsung: Remove unneeded initialization of chan_name"
X-Git-Tag: v4.11-rc1~100^2~8^2~14^2~1
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=b8ab0ccc0b6e517ff595f1b06fb9f578c8b4001f;p=linux.git

ASoC: Revert "samsung: Remove unneeded initialization of chan_name"

This reverts commit cdaf9af1eaeb539e32bfd6da6310b41ad6c3ba23
which breaks I2S support on the non-DT Samsung SoC platforms,
since the default "tx", "rx" DMA channel names for playback
and capture streams or custom channel names in struct
snd_dmaengine_pcm_config are supported in the ASoC dmaengine
module only for devicetree booting case.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/samsung/dmaengine.c b/sound/soc/samsung/dmaengine.c
index cda656e4afc6..9104c98deeb7 100644
--- a/sound/soc/samsung/dmaengine.c
+++ b/sound/soc/samsung/dmaengine.c
@@ -37,8 +37,12 @@ int samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter,
 	pcm_conf->prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
 	pcm_conf->compat_filter_fn = filter;
 
-	pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx;
-	pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx;
+	if (dev->of_node) {
+		pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx;
+		pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx;
+	} else {
+		flags |= SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME;
+	}
 
 	return devm_snd_dmaengine_pcm_register(dev, pcm_conf, flags);
 }
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index e00974bc5616..85324e61cbd5 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1305,6 +1305,8 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 	}
 	pri_dai->dma_playback.addr = regs_base + I2STXD;
 	pri_dai->dma_capture.addr = regs_base + I2SRXD;
+	pri_dai->dma_playback.chan_name = "tx";
+	pri_dai->dma_capture.chan_name = "rx";
 	pri_dai->dma_playback.addr_width = 4;
 	pri_dai->dma_capture.addr_width = 4;
 	pri_dai->quirks = quirks;
@@ -1329,6 +1331,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 		sec_dai->lock = &pri_dai->spinlock;
 		sec_dai->variant_regs = pri_dai->variant_regs;
 		sec_dai->dma_playback.addr = regs_base + I2STXDS;
+		sec_dai->dma_playback.chan_name = "tx-sec";
 
 		if (!np) {
 			sec_dai->dma_playback.filter_data = i2s_pdata->dma_play_sec;
diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c
index 6d0b8897fa6c..0a4718207e6e 100644
--- a/sound/soc/samsung/s3c2412-i2s.c
+++ b/sound/soc/samsung/s3c2412-i2s.c
@@ -35,10 +35,12 @@
 #include <linux/platform_data/asoc-s3c.h>
 
 static struct snd_dmaengine_dai_dma_data s3c2412_i2s_pcm_stereo_out = {
+	.chan_name	= "tx",
 	.addr_width	= 4,
 };
 
 static struct snd_dmaengine_dai_dma_data s3c2412_i2s_pcm_stereo_in = {
+	.chan_name	= "rx",
 	.addr_width	= 4,
 };
 
diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c
index 07f5091b33e8..91e6871e5413 100644
--- a/sound/soc/samsung/s3c24xx-i2s.c
+++ b/sound/soc/samsung/s3c24xx-i2s.c
@@ -31,10 +31,12 @@
 #include "s3c24xx-i2s.h"
 
 static struct snd_dmaengine_dai_dma_data s3c24xx_i2s_pcm_stereo_out = {
+	.chan_name	= "tx",
 	.addr_width	= 2,
 };
 
 static struct snd_dmaengine_dai_dma_data s3c24xx_i2s_pcm_stereo_in = {
+	.chan_name	= "rx",
 	.addr_width	= 2,
 };