5.4-stable review patch. If anyone has any objections, please let me know.
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From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
[ Upstream commit f40ecc2743652c0b0f19935f81baf57c601eb7f0 ]
ASoC has 2 functions to set bias level. (A) snd_soc_dapm_force_bias_level() (B) snd_soc_dapm_set_bias_level()
snd_soc_dapm_force_bias_level() (A) will set dapm->bias_level (a) if successed.
(A) int snd_soc_dapm_force_bias_level(...) { ... if (ret == 0) (a) dapm->bias_level = level; ... }
snd_soc_dapm_set_bias_level() (B) is also a function that sets bias_level. It will call snd_soc_dapm_force_bias_level() (A) inside, but doesn't set dapm->bias_level by itself. One note is that (A) might not be called.
(B) static int snd_soc_dapm_set_bias_level(...) { ... ret = snd_soc_card_set_bias_level(...); ... if (dapm != &card->dapm) (A) ret = snd_soc_dapm_force_bias_level(...); ... ret = snd_soc_card_set_bias_level_post(...); ... }
dapm->bias_level will be set if (A) was called, but might not be set if (B) was called, even though it calles set_bias_level() function.
We should set dapm->bias_level if we calls snd_soc_dapm_set_bias_level() (B), too.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Link: https://patch.msgid.link/87qzyn4g4h.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/soc-dapm.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 9f764d92469e..6142ce468c3b 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -741,6 +741,10 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, out: trace_snd_soc_bias_level_done(card, level);
+ /* success */ + if (ret == 0) + snd_soc_dapm_init_bias_level(dapm, level); + return ret; }