linux-kernel - [PATCH AUTOSEL 4.19 27/56] ASoC: msm8916-wcd-analog: Fix MIC BIAS Internal1

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Date:   Fri, 24 Jan 2020 09:19:43 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Stephan Gerhold <stephan@...hold.net>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>, alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 4.19 27/56] ASoC: msm8916-wcd-analog: Fix MIC BIAS Internal1

From: Stephan Gerhold <stephan@...hold.net>

[ Upstream commit 057efcf9faea4769cf1020677d93d040db9b23f3 ]

MIC BIAS Internal1 is broken at the moment because we always
enable the internal rbias resistor to the TX2 line (connected to
the headset microphone), rather than enabling the resistor connected
to TX1.

Move the RBIAS code to pm8916_wcd_analog_enable_micbias_int1/2()
to fix this.

Fixes: 585e881e5b9e ("ASoC: codecs: Add msm8916-wcd analog codec")
Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Stephan Gerhold <stephan@...hold.net>
Link: https://lore.kernel.org/r/20200111164006.43074-3-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/msm8916-wcd-analog.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c
index 6083b44ce1c6c..cbdb6d4bb91ef 100644
--- a/sound/soc/codecs/msm8916-wcd-analog.c
+++ b/sound/soc/codecs/msm8916-wcd-analog.c
@@ -388,9 +388,6 @@ static int pm8916_wcd_analog_enable_micbias_int(struct snd_soc_component
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		snd_soc_component_update_bits(component, CDC_A_MICB_1_INT_RBIAS,
-				    MICB_1_INT_TX2_INT_RBIAS_EN_MASK,
-				    MICB_1_INT_TX2_INT_RBIAS_EN_ENABLE);
 		snd_soc_component_update_bits(component, reg, MICB_1_EN_PULL_DOWN_EN_MASK, 0);
 		snd_soc_component_update_bits(component, CDC_A_MICB_1_EN,
 				    MICB_1_EN_OPA_STG2_TAIL_CURR_MASK,
@@ -440,6 +437,14 @@ static int pm8916_wcd_analog_enable_micbias_int1(struct
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	struct pm8916_wcd_analog_priv *wcd = snd_soc_component_get_drvdata(component);
 
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		snd_soc_component_update_bits(component, CDC_A_MICB_1_INT_RBIAS,
+				    MICB_1_INT_TX1_INT_RBIAS_EN_MASK,
+				    MICB_1_INT_TX1_INT_RBIAS_EN_ENABLE);
+		break;
+	}
+
 	return pm8916_wcd_analog_enable_micbias_int(component, event, w->reg,
 						     wcd->micbias1_cap_mode);
 }
@@ -550,6 +555,11 @@ static int pm8916_wcd_analog_enable_micbias_int2(struct
 	struct pm8916_wcd_analog_priv *wcd = snd_soc_component_get_drvdata(component);
 
 	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		snd_soc_component_update_bits(component, CDC_A_MICB_1_INT_RBIAS,
+				    MICB_1_INT_TX2_INT_RBIAS_EN_MASK,
+				    MICB_1_INT_TX2_INT_RBIAS_EN_ENABLE);
+		break;
 	case SND_SOC_DAPM_POST_PMU:
 		pm8916_mbhc_configure_bias(wcd, true);
 		break;
-- 
2.20.1