Merge tag 'sound-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This became a largish pull-request, as we've got a bunch of pending
  ASoC fixes at this time. One noticeable change is the removal of error
  directive in uapi/sound/asoc.h. We found that the API has been already
  used on Chromebooks, so we need to support it even now.

  A slight big LOC is found in Qualcomm lpass driver, but the rest are
  all small and easy fixes for ASoC drivers (sti, sun4i, Realtek codecs,
  Intel, tas571x, etc) in addition to the patches to harden the ALSA
  core proc file accesses"

* tag 'sound-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits)
  ALSA: info: Return error for invalid read/write
  ALSA: info: Limit the proc text input size
  ASoC: samsung: spdif: Fix DMA filter initialization
  ASoC: sun4i-codec: Enable bus clock after getting GPIO
  ASoC: lpass-cpu: add module licence and description
  ASoC: lpass-platform: Fix broken pcm data usage
  ASoC: sun4i-codec: return error code instead of NULL when create_card fails
  ASoC: hdmi-codec: Fix hdmi_of_xlate_dai_name when #sound-dai-cells = <0>
  ASoC: samsung: get access to DMA engine early to defer probe properly
  ASoC: da7219: Connect output enable register to DAIOUT
  ASoC: Intel: Skylake: Fix to turn off hdmi power on probe failure
  ASoC: sti-sas: enable fast io for regmap
  ASoC: sti: fix channel status update after playback start
  ASoC: PXA: Brownstone needs I2C
  ASoC: Intel: Skylake: Always acquire runtime pm ref on unload
  ASoC: Intel: Atom: add terminate entry for dmi_system_id tables
  ASoC: rt298: fix jack type detect error
  ASoC: rt5663: fix a debug statement
  ASoC: cs4270: fix DAPM stream name mismatch
  ASoC: Intel: haswell depends on sst-firmware
  ...

1 files changed, 79 insertions, 86 deletions

diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index e2ff538a8aa5..07000f53db44 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -61,7 +61,40 @@ static int lpass_platform_pcmops_open(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-	int ret;
+	struct snd_soc_dai *cpu_dai = soc_runtime->cpu_dai;
+	struct lpass_data *drvdata =
+		snd_soc_platform_get_drvdata(soc_runtime->platform);
+	struct lpass_variant *v = drvdata->variant;
+	int ret, dma_ch, dir = substream->stream;
+	struct lpass_pcm_data *data;
+
+	data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->i2s_port = cpu_dai->driver->id;
+	runtime->private_data = data;
+
+	if (v->alloc_dma_channel)
+		dma_ch = v->alloc_dma_channel(drvdata, dir);
+	if (dma_ch < 0)
+		return dma_ch;
+
+	drvdata->substream[dma_ch] = substream;
+
+	ret = regmap_write(drvdata->lpaif_map,
+			LPAIF_DMACTL_REG(v, dma_ch, dir), 0);
+	if (ret) {
+		dev_err(soc_runtime->dev,
+			"%s() error writing to rdmactl reg: %d\n",
+			__func__, ret);
+			return ret;
+	}
+
+	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
+		data->rdma_ch = dma_ch;
+	else
+		data->wrdma_ch = dma_ch;
 
 	snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware);
 
@@ -80,13 +113,40 @@ static int lpass_platform_pcmops_open(struct snd_pcm_substream *substream)
 	return 0;
 }
 
+static int lpass_platform_pcmops_close(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+	struct lpass_data *drvdata =
+		snd_soc_platform_get_drvdata(soc_runtime->platform);
+	struct lpass_variant *v = drvdata->variant;
+	struct lpass_pcm_data *data;
+	int dma_ch, dir = substream->stream;
+
+	data = runtime->private_data;
+	v = drvdata->variant;
+
+	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
+		dma_ch = data->rdma_ch;
+	else
+		dma_ch = data->wrdma_ch;
+
+	drvdata->substream[dma_ch] = NULL;
+
+	if (v->free_dma_channel)
+		v->free_dma_channel(drvdata, dma_ch);
+
+	return 0;
+}
+
 static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream,
 		struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
 	struct lpass_data *drvdata =
 		snd_soc_platform_get_drvdata(soc_runtime->platform);
-	struct lpass_pcm_data *pcm_data = drvdata->private_data;
+	struct snd_pcm_runtime *rt = substream->runtime;
+	struct lpass_pcm_data *pcm_data = rt->private_data;
 	struct lpass_variant *v = drvdata->variant;
 	snd_pcm_format_t format = params_format(params);
 	unsigned int channels = params_channels(params);
@@ -179,7 +239,8 @@ static int lpass_platform_pcmops_hw_free(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
 	struct lpass_data *drvdata =
 		snd_soc_platform_get_drvdata(soc_runtime->platform);
-	struct lpass_pcm_data *pcm_data = drvdata->private_data;
+	struct snd_pcm_runtime *rt = substream->runtime;
+	struct lpass_pcm_data *pcm_data = rt->private_data;
 	struct lpass_variant *v = drvdata->variant;
 	unsigned int reg;
 	int ret;
@@ -203,7 +264,8 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream)
 	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
 	struct lpass_data *drvdata =
 		snd_soc_platform_get_drvdata(soc_runtime->platform);
-	struct lpass_pcm_data *pcm_data = drvdata->private_data;
+	struct snd_pcm_runtime *rt = substream->runtime;
+	struct lpass_pcm_data *pcm_data = rt->private_data;
 	struct lpass_variant *v = drvdata->variant;
 	int ret, ch, dir = substream->stream;
 
@@ -257,7 +319,8 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
 	struct lpass_data *drvdata =
 		snd_soc_platform_get_drvdata(soc_runtime->platform);
-	struct lpass_pcm_data *pcm_data = drvdata->private_data;
+	struct snd_pcm_runtime *rt = substream->runtime;
+	struct lpass_pcm_data *pcm_data = rt->private_data;
 	struct lpass_variant *v = drvdata->variant;
 	int ret, ch, dir = substream->stream;
 
@@ -333,7 +396,8 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
 	struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
 	struct lpass_data *drvdata =
 			snd_soc_platform_get_drvdata(soc_runtime->platform);
-	struct lpass_pcm_data *pcm_data = drvdata->private_data;
+	struct snd_pcm_runtime *rt = substream->runtime;
+	struct lpass_pcm_data *pcm_data = rt->private_data;
 	struct lpass_variant *v = drvdata->variant;
 	unsigned int base_addr, curr_addr;
 	int ret, ch, dir = substream->stream;
@@ -374,6 +438,7 @@ static int lpass_platform_pcmops_mmap(struct snd_pcm_substream *substream,
 
 static const struct snd_pcm_ops lpass_platform_pcm_ops = {
 	.open		= lpass_platform_pcmops_open,
+	.close		= lpass_platform_pcmops_close,
 	.ioctl		= snd_pcm_lib_ioctl,
 	.hw_params	= lpass_platform_pcmops_hw_params,
 	.hw_free	= lpass_platform_pcmops_hw_free,
@@ -470,117 +535,45 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
 {
 	struct snd_pcm *pcm = soc_runtime->pcm;
 	struct snd_pcm_substream *psubstream, *csubstream;
-	struct snd_soc_dai *cpu_dai = soc_runtime->cpu_dai;
-	struct lpass_data *drvdata =
-		snd_soc_platform_get_drvdata(soc_runtime->platform);
-	struct lpass_variant *v = drvdata->variant;
 	int ret = -EINVAL;
-	struct lpass_pcm_data *data;
 	size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
 
-	data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	data->i2s_port = cpu_dai->driver->id;
-	drvdata->private_data = data;
-
 	psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 	if (psubstream) {
-		if (v->alloc_dma_channel)
-			data->rdma_ch = v->alloc_dma_channel(drvdata,
-						SNDRV_PCM_STREAM_PLAYBACK);
-
-		if (data->rdma_ch < 0)
-			return data->rdma_ch;
-
-		drvdata->substream[data->rdma_ch] = psubstream;
-
 		ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 					soc_runtime->platform->dev,
 					size, &psubstream->dma_buffer);
-		if (ret)
-			goto playback_alloc_err;
-
-		ret = regmap_write(drvdata->lpaif_map,
-			LPAIF_RDMACTL_REG(v, data->rdma_ch), 0);
 		if (ret) {
-			dev_err(soc_runtime->dev,
-				"%s() error writing to rdmactl reg: %d\n",
-				__func__, ret);
-			goto capture_alloc_err;
+			dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n");
+			return ret;
 		}
 	}
 
 	csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 	if (csubstream) {
-		if (v->alloc_dma_channel)
-			data->wrdma_ch = v->alloc_dma_channel(drvdata,
-						SNDRV_PCM_STREAM_CAPTURE);
-
-		if (data->wrdma_ch < 0) {
-			ret = data->wrdma_ch;
-			goto capture_alloc_err;
-		}
-
-		drvdata->substream[data->wrdma_ch] = csubstream;
-
 		ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 					soc_runtime->platform->dev,
 					size, &csubstream->dma_buffer);
-		if (ret)
-			goto capture_alloc_err;
-
-		ret = regmap_write(drvdata->lpaif_map,
-			LPAIF_WRDMACTL_REG(v, data->wrdma_ch), 0);
 		if (ret) {
-			dev_err(soc_runtime->dev,
-				"%s() error writing to wrdmactl reg: %d\n",
-				__func__, ret);
-			goto capture_reg_err;
+			dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n");
+			if (psubstream)
+				snd_dma_free_pages(&psubstream->dma_buffer);
+			return ret;
 		}
+
 	}
 
 	return 0;
-
-capture_reg_err:
-	if (csubstream)
-		snd_dma_free_pages(&csubstream->dma_buffer);
-
-capture_alloc_err:
-	if (psubstream)
-		snd_dma_free_pages(&psubstream->dma_buffer);
-
- playback_alloc_err:
-	dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n");
-
-	return ret;
 }
 
 static void lpass_platform_pcm_free(struct snd_pcm *pcm)
 {
-	struct snd_soc_pcm_runtime *rt;
-	struct lpass_data *drvdata;
-	struct lpass_pcm_data *data;
-	struct lpass_variant *v;
 	struct snd_pcm_substream *substream;
-	int ch, i;
+	int i;
 
 	for (i = 0; i < ARRAY_SIZE(pcm->streams); i++) {
 		substream = pcm->streams[i].substream;
 		if (substream) {
-			rt = substream->private_data;
-			drvdata = snd_soc_platform_get_drvdata(rt->platform);
-			data = drvdata->private_data;
-
-			ch = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-				? data->rdma_ch
-				: data->wrdma_ch;
-			v = drvdata->variant;
-			drvdata->substream[ch] = NULL;
-			if (v->free_dma_channel)
-				v->free_dma_channel(drvdata, ch);
-
 			snd_dma_free_pages(&substream->dma_buffer);
 			substream->dma_buffer.area = NULL;
 			substream->dma_buffer.addr = 0;