[PATCH 5.4 18/83] ASoC: wm8960: Fix wrong clock after suspend & resume

From: Greg Kroah-Hartman
Date: Fri May 01 2020 - 09:38:49 EST


From: Shengjiu Wang <shengjiu.wang@xxxxxxx>

commit 1e060a453c8604311fb45ae2f84f67ed673329b4 upstream.

After suspend & resume, wm8960_hw_params may be called when
bias_level is not SND_SOC_BIAS_ON, then wm8960_configure_clocking
is not called. But if sample rate is changed at that time, then
the output clock rate will be not correct.

So judgement of bias_level is SND_SOC_BIAS_ON in wm8960_hw_params
is not necessary and it causes above issue.

Fixes: 3176bf2d7ccd ("ASoC: wm8960: update pll and clock setting function")
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1587468525-27514-1-git-send-email-shengjiu.wang@xxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/soc/codecs/wm8960.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -860,8 +860,7 @@ static int wm8960_hw_params(struct snd_p

wm8960->is_stream_in_use[tx] = true;

- if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_ON &&
- !wm8960->is_stream_in_use[!tx])
+ if (!wm8960->is_stream_in_use[!tx])
return wm8960_configure_clocking(component);

return 0;