[PATCH 4/4] ASoC: msm8916-wcd-analog: Use separate outputs for HPH_L/HPH_R

Stephan Gerhold stephan at gerhold.net
Tue Dec 14 15:20:49 CET 2021


The analog codec has separate output paths for the left headphone channel
(HPH_L) and the right headphone channel (HPH_R). While they are usually
used together for actual headphones output, some devices also have an
analog speaker amplifier connected to one of the headphone channels.

To allow modelling that properly (and to avoid powering on the unneeded
output path), HPH_L and HPH_R should be represented by separate outputs
rather than a shared HEADPHONE output that always activates both paths.

Cc: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
Signed-off-by: Stephan Gerhold <stephan at gerhold.net>
---
 sound/soc/codecs/msm8916-wcd-analog.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c
index 3ddd822240e3..485cda46dbb9 100644
--- a/sound/soc/codecs/msm8916-wcd-analog.c
+++ b/sound/soc/codecs/msm8916-wcd-analog.c
@@ -822,8 +822,8 @@ static const struct snd_soc_dapm_route pm8916_wcd_analog_audio_map[] = {
 	{"EAR PA", NULL, "EAR CP"},
 
 	/* Headset (RX MIX1 and RX MIX2) */
-	{"HEADPHONE", NULL, "HPHL PA"},
-	{"HEADPHONE", NULL, "HPHR PA"},
+	{"HPH_L", NULL, "HPHL PA"},
+	{"HPH_R", NULL, "HPHR PA"},
 
 	{"HPHL DAC", NULL, "EAR_HPHL_CLK"},
 	{"HPHR DAC", NULL, "EAR_HPHR_CLK"},
@@ -870,7 +870,8 @@ static const struct snd_soc_dapm_widget pm8916_wcd_analog_dapm_widgets[] = {
 	SND_SOC_DAPM_INPUT("AMIC3"),
 	SND_SOC_DAPM_INPUT("AMIC2"),
 	SND_SOC_DAPM_OUTPUT("EAR"),
-	SND_SOC_DAPM_OUTPUT("HEADPHONE"),
+	SND_SOC_DAPM_OUTPUT("HPH_L"),
+	SND_SOC_DAPM_OUTPUT("HPH_R"),
 
 	/* RX stuff */
 	SND_SOC_DAPM_SUPPLY("INT_LDO_H", SND_SOC_NOPM, 1, 0, NULL, 0),
-- 
2.34.1



More information about the Alsa-devel mailing list