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audio: rk3036 codec:

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add rk3036 sound card unfinished function, If not,it not to
	set I2S clk and div,and lead to no sound on some TV.
This commit is contained in:
hjc
2014-09-02 15:48:42 +08:00
parent eb09839d7c
commit ebce6fdb8f
1 changed files with 52 additions and 3 deletions
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55
sound/soc/rockchip/rk_rk3036.c Normal file → Executable file
View File

@@ -23,24 +23,73 @@
#include "rk_pcm.h"
#include "rk_i2s.h"
#if 0
#define DBG(x...) pr_info("rk_rk3036" x)
#else
#define DBG(x...)
#endif
static int rk30_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->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
unsigned int dai_fmt = rtd->dai_link->dai_fmt;
unsigned int pll_out = 0, dai_fmt = rtd->dai_link->dai_fmt;
int ret;
DBG("Enter::%s----%d\n", __func__, __LINE__);
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
if (ret < 0)
if (ret < 0) {
DBG("%s():failed to set the format for codec side\n",
__func__);
return ret;
}
/* set cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt);
if (ret < 0)
if (ret < 0) {
DBG("%s():failed to set the format for cpu side\n",
__func__);
return ret;
}
switch (params_rate(params)) {
case 8000:
case 16000:
case 24000:
case 32000:
case 48000:
pll_out = 12288000;
break;
case 11025:
case 22050:
case 44100:
pll_out = 11289600;
break;
default:
DBG("Enter:%s, %d, Error rate=%d\n",
__func__, __LINE__, params_rate(params));
return -EINVAL;
break;
}
DBG("Enter:%s, %d, rate=%d\n",
__func__, __LINE__, params_rate(params));
/*Set the system clk for codec*/
ret = snd_soc_dai_set_sysclk(codec_dai, 0, pll_out, SND_SOC_CLOCK_IN);
if (ret < 0) {
DBG("rk_hifi_hw_params:failed to set the sysclk for codec\n");
return ret;
}
snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_BCLK,
(pll_out/4)/params_rate(params)-1);
snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_MCLK, 3);
DBG("Enter:%s, %d, pll_out/4/params_rate(params) = %d \n",
__func__, __LINE__, (pll_out/4)/params_rate(params));
return 0;
}