redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

MLK-11479-04 ASoC: imx-wm8962: Set MCLK source clock to 0Hz in hw_free()

Browse source 
cherry-pick below patch from v3.14.y:
ENGR00274386-2 ASoC: imx-wm8962: Set MCLK source clock to 0Hz in hw_free()

When DAPM closed WM8962 after playback, its driver would prompt
'wm8962 0-001a: Unsupported sysclk ratio 500' due to the invalid
divisor calculated by WM8962 codec driver.

To fix it, we can work around by setting its MCLK source to 0Hz,
so the codec driver would never get an invalid divisor any more.
Since hw_params() would re-set the MCLK source, no need to worry
about any side-effect.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <b42378@freescale.com>
(cherry picked from commit a935f7680ac3958ce72cf7413cac278c0683d4c0)
This commit is contained in:
Nicolin Chen 2013-08-13 11:37:54 +08:00 committed by Dong Aisheng
parent f206144f3a
commit 2b55dd085e
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sound/soc/fsl/imx-wm8962.c
View file

@ -129,7 +129,7 @@ static int imx_hifi_hw_free(struct snd_pcm_substream *substream)
* So we set MCLK as sysclk once, which'd remove the limitation.
*/
ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
data->clk_frequency, SND_SOC_CLOCK_IN);
0, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(dev, "failed to switch away from FLL: %d\n", ret);
return ret;