Merge remote-tracking branch 'asoc/topic/pcm' into for-tiwai

include/sound/pcm.h

@@ -900,6 +900,8 @@ extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates;
 int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime);
 unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate);
 unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit);
+unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
+					 unsigned int rates_b);
 
 static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream,
 					      struct snd_dma_buffer *bufp)

include/sound/soc.h

@@ -895,6 +895,10 @@ struct snd_soc_dai_link {
 	/* This DAI link can route to other DAI links at runtime (Frontend)*/
 	unsigned int dynamic:1;
 
+	/* DPCM capture and Playback support */
+	unsigned int dpcm_capture:1;
+	unsigned int dpcm_playback:1;
+
 	/* pmdown_time is ignored at stop */
 	unsigned int ignore_pmdown_time:1;
 

sound/core/pcm_misc.c

@@ -514,3 +514,42 @@ unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit)
 	return 0;
 }
 EXPORT_SYMBOL(snd_pcm_rate_bit_to_rate);
+
+static unsigned int snd_pcm_rate_mask_sanitize(unsigned int rates)
+{
+	if (rates & SNDRV_PCM_RATE_CONTINUOUS)
+		return SNDRV_PCM_RATE_CONTINUOUS;
+	else if (rates & SNDRV_PCM_RATE_KNOT)
+		return SNDRV_PCM_RATE_KNOT;
+	return rates;
+}
+
+/**
+ * snd_pcm_rate_mask_intersect - computes the intersection between two rate masks
+ * @rates_a: The first rate mask
+ * @rates_b: The second rate mask
+ *
+ * This function computes the rates that are supported by both rate masks passed
+ * to the function. It will take care of the special handling of
+ * SNDRV_PCM_RATE_CONTINUOUS and SNDRV_PCM_RATE_KNOT.
+ *
+ * Return: A rate mask containing the rates that are supported by both rates_a
+ * and rates_b.
+ */
+unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
+	unsigned int rates_b)
+{
+	rates_a = snd_pcm_rate_mask_sanitize(rates_a);
+	rates_b = snd_pcm_rate_mask_sanitize(rates_b);
+
+	if (rates_a & SNDRV_PCM_RATE_CONTINUOUS)
+		return rates_b;
+	else if (rates_b & SNDRV_PCM_RATE_CONTINUOUS)
+		return rates_a;
+	else if (rates_a & SNDRV_PCM_RATE_KNOT)
+		return rates_b;
+	else if (rates_b & SNDRV_PCM_RATE_KNOT)
+		return rates_a;
+	return rates_a & rates_b;
+}
+EXPORT_SYMBOL_GPL(snd_pcm_rate_mask_intersect);

sound/soc/fsl/fsl_ssi.c

@@ -80,8 +80,7 @@ static inline void write_ssi_mask(u32 __iomem *addr, u32 clear, u32 set)
  * ALSA that we support all rates and let the codec driver decide what rates
  * are really supported.
  */
-#define FSLSSI_I2S_RATES (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_192000 | \
-			  SNDRV_PCM_RATE_CONTINUOUS)
+#define FSLSSI_I2S_RATES SNDRV_PCM_RATE_CONTINUOUS
 
 /**
  * FSLSSI_I2S_FORMATS: audio formats supported by the SSI

sound/soc/fsl/mpc5200_psc_i2s.c

@@ -26,8 +26,7 @@
  * ALSA that we support all rates and let the codec driver decide what rates
  * are really supported.
  */
-#define PSC_I2S_RATES (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_192000 | \
-			SNDRV_PCM_RATE_CONTINUOUS)
+#define PSC_I2S_RATES SNDRV_PCM_RATE_CONTINUOUS
 
 /**
  * PSC_I2S_FORMATS: audio formats supported by the PSC I2S mode

sound/soc/s6000/s6000-i2s.c

@@ -405,8 +405,7 @@ static int s6000_i2s_dai_probe(struct snd_soc_dai *dai)
 	return 0;
 }
 
-#define S6000_I2S_RATES	(SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_5512 | \
-			 SNDRV_PCM_RATE_8000_192000)
+#define S6000_I2S_RATES SNDRV_PCM_RATE_CONTINUOUS
 #define S6000_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
 static const struct snd_soc_dai_ops s6000_i2s_dai_ops = {

sound/soc/soc-pcm.c

@@ -240,14 +240,15 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_runtime *runtime,
 		cpu_stream->channels_min);
 	hw->channels_max = min(codec_stream->channels_max,
 		cpu_stream->channels_max);
+	if (hw->formats)
+		hw->formats &= codec_stream->formats & cpu_stream->formats;
+	else
 		hw->formats = codec_stream->formats & cpu_stream->formats;
-	hw->rates = codec_stream->rates & cpu_stream->rates;
-	if (codec_stream->rates
-		& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
-		hw->rates |= cpu_stream->rates;
-	if (cpu_stream->rates
-		& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
-		hw->rates |= codec_stream->rates;
+	hw->rates = snd_pcm_rate_mask_intersect(codec_stream->rates,
+		cpu_stream->rates);
+
+	hw->rate_min = 0;
+	hw->rate_max = UINT_MAX;
 
 	snd_pcm_limit_hw_rates(runtime);
 
@@ -2140,10 +2141,8 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 	int ret = 0, playback = 0, capture = 0;
 
 	if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) {
-		if (cpu_dai->driver->playback.channels_min)
-			playback = 1;
-		if (cpu_dai->driver->capture.channels_min)
-			capture = 1;
+		playback = rtd->dai_link->dpcm_playback;
+		capture = rtd->dai_link->dpcm_capture;
 	} else {
 		if (codec_dai->driver->playback.channels_min &&
 		    cpu_dai->driver->playback.channels_min)