Merge tag 'asoc-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v4.5

This is quite a busy release on the driver front with a lot of new
drivers being added but comparatively quiet on the core side with only
one big change going in and that a fairly straightforward refactoring.

 - Conversion of the array of DAI links to a list by Mengdong Lin,
   supporting dynamically adding and removing DAI links.
 - Some more fixes for the topology code, though it is still not final
   and ready for enabling in production.  We really need to get to the
   point where that can be done.
 - A pile of changes for Intel SkyLake drivers which hopefully deliver
   some useful initial functionality for systems with this chipset,
   though there is more work still to come.
 - New drivers for a number of Imagination Technologies IPs.
 - Lots of new features and cleanups for the Renesas drivers.
 - ANC support for WM5110.
 - New driver for Atmel class D speaker drivers.
 - New drivers for Cirrus CS47L24 and WM1831.
 - New driver for Dialog DA7128.
 - New drivers for Realtek RT5659 and RT56156.
 - New driver for Rockchip RK3036.
 - New driver for TI PC3168A

1 files changed, 18 insertions, 8 deletions

diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c
index 8276675730ef..6107de9c538b 100644
--- a/sound/soc/atmel/atmel-classd.c
+++ b/sound/soc/atmel/atmel-classd.c
@@ -106,7 +106,7 @@ static const struct snd_pcm_hardware atmel_classd_hw = {
 	.rates			= ATMEL_CLASSD_RATES,
 	.rate_min		= 8000,
 	.rate_max		= 96000,
-	.channels_min		= 2,
+	.channels_min		= 1,
 	.channels_max		= 2,
 	.buffer_bytes_max	= 64 * 1024,
 	.period_bytes_min	= 256,
@@ -145,7 +145,7 @@ static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = {
 
 static struct snd_soc_dai_driver atmel_classd_cpu_dai = {
 	.playback = {
-		.channels_min	= 2,
+		.channels_min	= 1,
 		.channels_max	= 2,
 		.rates		= ATMEL_CLASSD_RATES,
 		.formats	= SNDRV_PCM_FMTBIT_S16_LE,},
@@ -171,9 +171,13 @@ atmel_classd_platform_configure_dma(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
+	if (params_channels(params) == 1)
+		slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+	else
+		slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+
 	slave_config->direction		= DMA_MEM_TO_DEV;
 	slave_config->dst_addr		= dd->phy_base + CLASSD_THR;
-	slave_config->dst_addr_width	= DMA_SLAVE_BUSWIDTH_4_BYTES;
 	slave_config->dst_maxburst	= 1;
 	slave_config->src_maxburst	= 1;
 	slave_config->device_fc		= false;
@@ -486,7 +490,7 @@ static struct snd_soc_dai_driver atmel_classd_codec_dai = {
 	.name = ATMEL_CLASSD_CODEC_DAI_NAME,
 	.playback = {
 		.stream_name	= "Playback",
-		.channels_min	= 2,
+		.channels_min	= 1,
 		.channels_max	= 2,
 		.rates		= ATMEL_CLASSD_RATES,
 		.formats	= SNDRV_PCM_FMTBIT_S16_LE,
@@ -636,8 +640,10 @@ static int atmel_classd_probe(struct platform_device *pdev)
 
 	/* register sound card */
 	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
-	if (!card)
-		return -ENOMEM;
+	if (!card) {
+		ret = -ENOMEM;
+		goto unregister_codec;
+	}
 
 	snd_soc_card_set_drvdata(card, dd);
 	platform_set_drvdata(pdev, card);
@@ -645,16 +651,20 @@ static int atmel_classd_probe(struct platform_device *pdev)
 	ret = atmel_classd_asoc_card_init(dev, card);
 	if (ret) {
 		dev_err(dev, "failed to init sound card\n");
-		return ret;
+		goto unregister_codec;
 	}
 
 	ret = devm_snd_soc_register_card(dev, card);
 	if (ret) {
 		dev_err(dev, "failed to register sound card: %d\n", ret);
-		return ret;
+		goto unregister_codec;
 	}
 
 	return 0;
+
+unregister_codec:
+	snd_soc_unregister_codec(dev);
+	return ret;
 }
 
 static int atmel_classd_remove(struct platform_device *pdev)