summaryrefslogtreecommitdiffstats
path: root/sound/soc/pxa/magician.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/pxa/magician.c')
-rw-r--r--sound/soc/pxa/magician.c106
1 files changed, 2 insertions, 104 deletions
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index 2fc012b06c43..935a248e5bf6 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -90,95 +90,9 @@ static int magician_playback_hw_params(struct snd_pcm_substream *substream,
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 acps, acds, width;
- unsigned int div4 = PXA_SSP_CLK_SCDB_4;
+ unsigned int width;
int ret = 0;
- width = snd_pcm_format_physical_width(params_format(params));
-
- /*
- * rate = SSPSCLK / (2 * width(16 or 32))
- * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
- */
- switch (params_rate(params)) {
- case 8000:
- /* off by a factor of 2: bug in the PXA27x audio clock? */
- acps = 32842000;
- switch (width) {
- case 16:
- /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_16;
- break;
- default: /* 32 */
- /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_8;
- }
- break;
- case 11025:
- acps = 5622000;
- switch (width) {
- case 16:
- /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_4;
- break;
- default: /* 32 */
- /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_2;
- }
- break;
- case 22050:
- acps = 5622000;
- switch (width) {
- case 16:
- /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_2;
- break;
- default: /* 32 */
- /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_1;
- }
- break;
- case 44100:
- acps = 5622000;
- switch (width) {
- case 16:
- /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_2;
- break;
- default: /* 32 */
- /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_1;
- }
- break;
- case 48000:
- acps = 12235000;
- switch (width) {
- case 16:
- /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_2;
- break;
- default: /* 32 */
- /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_1;
- }
- break;
- case 96000:
- default:
- acps = 12235000;
- switch (width) {
- case 16:
- /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_1;
- break;
- default: /* 32 */
- /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
- acds = PXA_SSP_CLK_AUDIO_DIV_2;
- div4 = PXA_SSP_CLK_SCDB_1;
- break;
- }
- break;
- }
-
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
@@ -191,6 +105,7 @@ static int magician_playback_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
+ width = snd_pcm_format_physical_width(params_format(params));
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
if (ret < 0)
return ret;
@@ -201,23 +116,6 @@ static int magician_playback_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
- /* set the SSP audio system clock ACDS divider */
- ret = snd_soc_dai_set_clkdiv(cpu_dai,
- PXA_SSP_AUDIO_DIV_ACDS, acds);
- if (ret < 0)
- return ret;
-
- /* set the SSP audio system clock SCDB divider4 */
- ret = snd_soc_dai_set_clkdiv(cpu_dai,
- PXA_SSP_AUDIO_DIV_SCDB, div4);
- if (ret < 0)
- return ret;
-
- /* set SSP audio pll clock */
- ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
- if (ret < 0)
- return ret;
-
return 0;
}