diff options
| author | Axel Castaneda Gonzalez <x0055901@ti.com> | 2012-04-22 23:05:36 -0500 |
|---|---|---|
| committer | Dmytro Kedrovskyi <x0169235@ti.com> | 2012-05-11 17:06:55 +0300 |
| commit | 976a2e2b2c73aa656955c8b4dba3d0ab8f064b31 (patch) | |
| tree | cb94848bd95213e90c9c80f45d43a30924d2b41f /sound/soc/omap | |
| parent | 8b73bbf6ea6fc837b18c0926303dc531813bda25 (diff) | |
| download | kernel_samsung_espresso10-976a2e2b2c73aa656955c8b4dba3d0ab8f064b31.zip kernel_samsung_espresso10-976a2e2b2c73aa656955c8b4dba3d0ab8f064b31.tar.gz kernel_samsung_espresso10-976a2e2b2c73aa656955c8b4dba3d0ab8f064b31.tar.bz2 | |
ASoC: sdp4430: Use internal clock for DMic legacy
Configure DMic Legacy DAI to use OMAP_DMIC_SYSCLK_MUX_CLKS
as FCLK.
When using OMAP_DMIC_SYSCLK_PAD_CLKS (provided by TWL6040)
as an external FCLK, ABE_ICLK2 gets gated just before the
start of the information exchange between DMic and the host,
which causes the DMic FIFO to get full before data gets
consumed. Using OMAP_DMIC_SYSCLK_MUX_CLKS prevents this
behavior.
Change-Id: Iccda2327a5379e200f877b46c9497060c10668a8
Signed-off-by: Axel Castaneda Gonzalez <x0055901@ti.com>
Diffstat (limited to 'sound/soc/omap')
| -rwxr-xr-x | sound/soc/omap/sdp4430.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/sound/soc/omap/sdp4430.c b/sound/soc/omap/sdp4430.c index 02fe2db..de4ac69 100755 --- a/sound/soc/omap/sdp4430.c +++ b/sound/soc/omap/sdp4430.c @@ -285,13 +285,25 @@ static int sdp4430_dmic_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int ret = 0; - ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS, - 19200000, SND_SOC_CLOCK_IN); + if (!rtd->dai_link->no_pcm) + ret = snd_soc_dai_set_sysclk(cpu_dai, + OMAP_DMIC_SYSCLK_SYNC_MUX_CLKS, 24000000, + SND_SOC_CLOCK_IN); + else + ret = snd_soc_dai_set_sysclk(cpu_dai, + OMAP_DMIC_SYSCLK_PAD_CLKS, 19200000, + SND_SOC_CLOCK_IN); + if (ret < 0) { printk(KERN_ERR "can't set DMIC cpu system clock\n"); return ret; } - ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_DMIC_CLKDIV, 8); + + if (!rtd->dai_link->no_pcm) + ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_DMIC_CLKDIV, 10); + else + ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_DMIC_CLKDIV, 8); + if (ret < 0) { printk(KERN_ERR "can't set DMIC cpu clock divider\n"); return ret; |