ASoC: Blackfin: add ad193x sysclk configuration

Signed-off-by: Scott Jiang <scott.jiang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/sound/soc/blackfin/bf5xx-ad193x.c b/sound/soc/blackfin/bf5xx-ad193x.c
index d3ccb926b5e4..33678828d57e 100644
--- a/sound/soc/blackfin/bf5xx-ad193x.c
+++ b/sound/soc/blackfin/bf5xx-ad193x.c
@@ -60,8 +60,16 @@ static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
         struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        unsigned int clk = 0;
         unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7};
         int ret = 0;
+
+        switch (params_rate(params)) {
+        case 48000:
+                clk = 12288000;
+                break;
+        }
+
         /* set cpu DAI configuration */
         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
                 SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
@@ -74,6 +82,12 @@ static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream,
         if (ret < 0)
                 return ret;
 
+        /* set the codec system clock for DAC and ADC */
+        ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
+                SND_SOC_CLOCK_IN);
+        if (ret < 0)
+                return ret;
+
         /* set codec DAI slots, 8 channels, all channels are enabled */
         ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32);
         if (ret < 0)