ASoC: Pandora: Pass SRG input clock frequency to the OMAP McBSP DAI

Upcoming change to omap-mcbsp.c require that machine drivers using OMAP
as a DAI master to pass sample rate generator input clock frequency to
the omap-mcbsp.c DAI driver.

Pandora is using 256*Fs output from the TWL4030 codec as an input clock to
the McBSP sample rate generator.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/omap/omap3pandora.c

@@ -40,9 +40,12 @@
 
 #define PREFIX "ASoC omap3pandora: "
 
-static int omap3pandora_cmn_hw_params(struct snd_soc_dai *codec_dai,
-	struct snd_soc_dai *cpu_dai, unsigned int fmt)
+static int omap3pandora_cmn_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, unsigned int fmt)
 {
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
 	int ret;
 
 	/* Set codec DAI configuration */
@@ -68,8 +71,9 @@ static int omap3pandora_cmn_hw_params(struct snd_soc_dai *codec_dai,
 	}
 
 	/* Set McBSP clock to external */
-	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT, 0,
-					    SND_SOC_CLOCK_IN);
+	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT,
+				     256 * params_rate(params),
+				     SND_SOC_CLOCK_IN);
 	if (ret < 0) {
 		pr_err(PREFIX "can't set cpu system clock\n");
 		return ret;
@@ -87,11 +91,7 @@ static int omap3pandora_cmn_hw_params(struct snd_soc_dai *codec_dai,
 static int omap3pandora_out_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
-	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
-
-	return omap3pandora_cmn_hw_params(codec_dai, cpu_dai,
+	return omap3pandora_cmn_hw_params(substream, params,
 					  SND_SOC_DAIFMT_I2S |
 					  SND_SOC_DAIFMT_IB_NF |
 					  SND_SOC_DAIFMT_CBS_CFS);
@@ -100,11 +100,7 @@ static int omap3pandora_out_hw_params(struct snd_pcm_substream *substream,
 static int omap3pandora_in_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
-	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
-
-	return omap3pandora_cmn_hw_params(codec_dai, cpu_dai,
+	return omap3pandora_cmn_hw_params(substream, params,
 					  SND_SOC_DAIFMT_I2S |
 					  SND_SOC_DAIFMT_NB_NF |
 					  SND_SOC_DAIFMT_CBS_CFS);