| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 145/167] ASoC: cs47l15: Fix event generation for low power mux control | Date | Tue, 19 Jul 2022 13:54:37 +0200 |
| |
From: Charles Keepax <ckeepax@opensource.cirrus.com>
[ Upstream commit 7f103af4a10f375b9b346b4d0b730f6a66b8c451 ]
cs47l15_in1_adc_put always returns zero regardless of if the control value was updated. This results in missing notifications to user-space of the control change. Update the handling to return 1 when the value is changed.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220623105120.1981154-3-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- sound/soc/codecs/cs47l15.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs47l15.c b/sound/soc/codecs/cs47l15.c index 1ee83160b83f..ac9ccdea15b5 100644 --- a/sound/soc/codecs/cs47l15.c +++ b/sound/soc/codecs/cs47l15.c @@ -122,6 +122,9 @@ static int cs47l15_in1_adc_put(struct snd_kcontrol *kcontrol, snd_soc_kcontrol_component(kcontrol); struct cs47l15 *cs47l15 = snd_soc_component_get_drvdata(component); + if (!!ucontrol->value.integer.value[0] == cs47l15->in1_lp_mode) + return 0; + switch (ucontrol->value.integer.value[0]) { case 0: /* Set IN1 to normal mode */ @@ -150,7 +153,7 @@ static int cs47l15_in1_adc_put(struct snd_kcontrol *kcontrol, break; } - return 0; + return 1; } static const struct snd_kcontrol_new cs47l15_snd_controls[] = { -- 2.35.1
|