Merge tag 'sound-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "No dramatic changes are found in this development cycle, but as usual,
  many commits are applied in a wide range of drivers.

  Most of big changes are in ASoC, where a few bits of framework work
  and quite a lot of cleanups and improvements to existing code have
  been done. The rest are usual stuff, a few HD-audio and USB-audio
  quirks and fixes, as well as the drop of kthread usages in the whole
  subsystem.

  Below are some highlights:

  ASoC:
   - support for stereo DAPM controls
   - some initial work on the of-graph sound card
   - regmap conversions of the remaining AC'97 drivers
   - a new version of the topology ABI; this should be backward
     compatible
   - updates / cleanups of rsnd, sunxi, sti, nau8825, samsung, arizona,
     Intel skylake, atom-sst
   - new drivers for Cirrus Logic CS42L42, Qualcomm MSM8916-WCD, and
     Realtek RT5665

  USB-audio:
   - yet another race fix at disconnection
   - tolerated packet size calculation for some Android devices
   - quirks for Axe-Fx II, QuickCam, TEAC 501/503

  HD-audio:
   - improvement of Dell pin fixup mapping
   - quirks for HP Z1 Gen3, Alienware 15 R2 2016 and ALC622 headset mic

  Misc:
   - replace all kthread usages with simple works"

* tag 'sound-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (296 commits)
  ALSA: hiface: Fix M2Tech hiFace driver sampling rate change
  ALSA: usb-audio: Eliminate noise at the start of DSD playback.
  ALSA: usb-audio: Add native DSD support for TEAC 501/503 DAC
  ASoC: wm_adsp: wm_adsp_buf_alloc should use kfree in error path
  ASoC: topology: avoid uninitialized kcontrol_type
  ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks
  ALSA: usb-audio: add implicit fb quirk for Axe-Fx II
  ASoC: zte: spdif: correct ZX_SPDIF_CLK_RAT define
  ASoC: zte: spdif and i2s drivers are not zx296702 specific
  ASoC: rsnd: setup BRGCKR/BRRA/BRRB when starting
  ASoC: rsnd: enable/disable ADG when suspend/resume timing
  ASoC: rsnd: tidyup ssi->usrcnt counter check in hw_params
  ALSA: cs46xx: add a new line
  ASoC: Intel: update bxt_da7219_max98357a to support quad ch dmic capture
  ASoC: nau8825: disable sinc filter for high THD of ADC
  ALSA: usb-audio: more tolerant packetsize
  ALSA: usb-audio: avoid setting of sample rate multiple times on bus
  ASoC: cs35l34: Simplify the logic to set CS35L34_MCLK_CTL setting
  ALSA: hda - Gate the mic jack on HP Z1 Gen3 AiO
  ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq
  ...

1 files changed, 87 insertions, 18 deletions

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 687a8f83dbe5..f24d19526603 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -93,6 +93,9 @@ struct sun4i_i2s {
 	struct clk	*mod_clk;
 	struct regmap	*regmap;
 
+	unsigned int	mclk_freq;
+
+	struct snd_dmaengine_dai_dma_data	capture_dma_data;
 	struct snd_dmaengine_dai_dma_data	playback_dma_data;
 };
 
@@ -157,14 +160,24 @@ static int sun4i_i2s_get_mclk_div(struct sun4i_i2s *i2s,
 }
 
 static int sun4i_i2s_oversample_rates[] = { 128, 192, 256, 384, 512, 768 };
+static bool sun4i_i2s_oversample_is_valid(unsigned int oversample)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sun4i_i2s_oversample_rates); i++)
+		if (sun4i_i2s_oversample_rates[i] == oversample)
+			return true;
+
+	return false;
+}
 
 static int sun4i_i2s_set_clk_rate(struct sun4i_i2s *i2s,
 				  unsigned int rate,
 				  unsigned int word_size)
 {
-	unsigned int clk_rate;
+	unsigned int oversample_rate, clk_rate;
 	int bclk_div, mclk_div;
-	int ret, i;
+	int ret;
 
 	switch (rate) {
 	case 176400:
@@ -196,21 +209,18 @@ static int sun4i_i2s_set_clk_rate(struct sun4i_i2s *i2s,
 	if (ret)
 		return ret;
 
-	/* Always favor the highest oversampling rate */
-	for (i = (ARRAY_SIZE(sun4i_i2s_oversample_rates) - 1); i >= 0; i--) {
-		unsigned int oversample_rate = sun4i_i2s_oversample_rates[i];
-
-		bclk_div = sun4i_i2s_get_bclk_div(i2s, oversample_rate,
-						  word_size);
-		mclk_div = sun4i_i2s_get_mclk_div(i2s, oversample_rate,
-						  clk_rate,
-						  rate);
+	oversample_rate = i2s->mclk_freq / rate;
+	if (!sun4i_i2s_oversample_is_valid(oversample_rate))
+		return -EINVAL;
 
-		if ((bclk_div >= 0) && (mclk_div >= 0))
-			break;
-	}
+	bclk_div = sun4i_i2s_get_bclk_div(i2s, oversample_rate,
+					  word_size);
+	if (bclk_div < 0)
+		return -EINVAL;
 
-	if ((bclk_div < 0) || (mclk_div < 0))
+	mclk_div = sun4i_i2s_get_mclk_div(i2s, oversample_rate,
+					  clk_rate, rate);
+	if (mclk_div < 0)
 		return -EINVAL;
 
 	regmap_write(i2s->regmap, SUN4I_I2S_CLK_DIV_REG,
@@ -341,6 +351,27 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	return 0;
 }
 
+static void sun4i_i2s_start_capture(struct sun4i_i2s *i2s)
+{
+	/* Flush RX FIFO */
+	regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG,
+			   SUN4I_I2S_FIFO_CTRL_FLUSH_RX,
+			   SUN4I_I2S_FIFO_CTRL_FLUSH_RX);
+
+	/* Clear RX counter */
+	regmap_write(i2s->regmap, SUN4I_I2S_RX_CNT_REG, 0);
+
+	/* Enable RX Block */
+	regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG,
+			   SUN4I_I2S_CTRL_RX_EN,
+			   SUN4I_I2S_CTRL_RX_EN);
+
+	/* Enable RX DRQ */
+	regmap_update_bits(i2s->regmap, SUN4I_I2S_DMA_INT_CTRL_REG,
+			   SUN4I_I2S_DMA_INT_CTRL_RX_DRQ_EN,
+			   SUN4I_I2S_DMA_INT_CTRL_RX_DRQ_EN);
+}
+
 static void sun4i_i2s_start_playback(struct sun4i_i2s *i2s)
 {
 	/* Flush TX FIFO */
@@ -362,6 +393,18 @@ static void sun4i_i2s_start_playback(struct sun4i_i2s *i2s)
 			   SUN4I_I2S_DMA_INT_CTRL_TX_DRQ_EN);
 }
 
+static void sun4i_i2s_stop_capture(struct sun4i_i2s *i2s)
+{
+	/* Disable RX Block */
+	regmap_update_bits(i2s->regmap, SUN4I_I2S_CTRL_REG,
+			   SUN4I_I2S_CTRL_RX_EN,
+			   0);
+
+	/* Disable RX DRQ */
+	regmap_update_bits(i2s->regmap, SUN4I_I2S_DMA_INT_CTRL_REG,
+			   SUN4I_I2S_DMA_INT_CTRL_RX_DRQ_EN,
+			   0);
+}
 
 static void sun4i_i2s_stop_playback(struct sun4i_i2s *i2s)
 {
@@ -388,7 +431,7 @@ static int sun4i_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 			sun4i_i2s_start_playback(i2s);
 		else
-			return -EINVAL;
+			sun4i_i2s_start_capture(i2s);
 		break;
 
 	case SNDRV_PCM_TRIGGER_STOP:
@@ -397,7 +440,7 @@ static int sun4i_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 			sun4i_i2s_stop_playback(i2s);
 		else
-			return -EINVAL;
+			sun4i_i2s_stop_capture(i2s);
 		break;
 
 	default:
@@ -447,9 +490,23 @@ static void sun4i_i2s_shutdown(struct snd_pcm_substream *substream,
 	regmap_write(i2s->regmap, SUN4I_I2S_CTRL_REG, 0);
 }
 
+static int sun4i_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+				unsigned int freq, int dir)
+{
+	struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+	if (clk_id != 0)
+		return -EINVAL;
+
+	i2s->mclk_freq = freq;
+
+	return 0;
+}
+
 static const struct snd_soc_dai_ops sun4i_i2s_dai_ops = {
 	.hw_params	= sun4i_i2s_hw_params,
 	.set_fmt	= sun4i_i2s_set_fmt,
+	.set_sysclk	= sun4i_i2s_set_sysclk,
 	.shutdown	= sun4i_i2s_shutdown,
 	.startup	= sun4i_i2s_startup,
 	.trigger	= sun4i_i2s_trigger,
@@ -459,7 +516,9 @@ static int sun4i_i2s_dai_probe(struct snd_soc_dai *dai)
 {
 	struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 
-	snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data, NULL);
+	snd_soc_dai_init_dma_data(dai,
+				  &i2s->playback_dma_data,
+				  &i2s->capture_dma_data);
 
 	snd_soc_dai_set_drvdata(dai, i2s);
 
@@ -468,6 +527,13 @@ static int sun4i_i2s_dai_probe(struct snd_soc_dai *dai)
 
 static struct snd_soc_dai_driver sun4i_i2s_dai = {
 	.probe = sun4i_i2s_dai_probe,
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 2,
@@ -630,6 +696,9 @@ static int sun4i_i2s_probe(struct platform_device *pdev)
 	i2s->playback_dma_data.addr = res->start + SUN4I_I2S_FIFO_TX_REG;
 	i2s->playback_dma_data.maxburst = 4;
 
+	i2s->capture_dma_data.addr = res->start + SUN4I_I2S_FIFO_RX_REG;
+	i2s->capture_dma_data.maxburst = 4;
+
 	pm_runtime_enable(&pdev->dev);
 	if (!pm_runtime_enabled(&pdev->dev)) {
 		ret = sun4i_i2s_runtime_resume(&pdev->dev);