[PATCH] ASoC: DaVinci: Updates to EVM hardware params callback

[Chaithrika U S <chaithrika@ti.com>]

For S/PDIF transciever codec to work on TI DM6467 EVM,
the codec ops pointer should be checked for in the params callback.
This dummy codec has no set_fmt or set_sysclk implementations.

Tested on TI DM6467 EVM.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Tested-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
---
Applies to ALSA GIT tree on branch topic/asoc at
http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=shortlog;
h=topic/asoc

 sound/soc/davinci/davinci-evm.c |   17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index 7ccbe66..1760354 100644
--- a/sound/soc/davinci/davinci-evm.c
+++ b/sound/soc/davinci/davinci-evm.c
@@ -64,9 +64,11 @@ static int evm_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 
 	/* set codec DAI configuration */
-	ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
-	if (ret < 0)
-		return ret;
+	if (codec_dai->ops->set_fmt) {
+		ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
+		if (ret < 0)
+			return ret;
+	}
 
 	/* set cpu DAI configuration */
 	ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
@@ -74,9 +76,12 @@ static int evm_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 
 	/* set the codec system clock */
-	ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
-	if (ret < 0)
-		return ret;
+	if (codec_dai->ops->set_sysclk) {
+		ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk,
+							SND_SOC_CLOCK_OUT);
+		if (ret < 0)
+			return ret;
+	}
 
 	return 0;
 }
-- 
1.5.6