linux-kernel - [PATCH 2/9] ASoC: codecs: lpass-wsa-macro: remove useless gain read/write sequence

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Message-ID: <20251117051523.16462-2-jonathan@marek.ca>
Date: Mon, 17 Nov 2025 00:15:14 -0500
From: Jonathan Marek <jonathan@...ek.ca>
To: linux-arm-msm@...r.kernel.org
Cc: Srinivas Kandagatla <srini@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org (open list:QCOM AUDIO (ASoC) DRIVERS),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 2/9] ASoC: codecs: lpass-wsa-macro: remove useless gain read/write sequence

Reading and writing the same value to this register does nothing.

Looking at downstream driver it seems there was meant to be an offset added

Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
---
 sound/soc/codecs/lpass-wsa-macro.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c
index 6e54c1beac8f9..6f16d54aee401 100644
--- a/sound/soc/codecs/lpass-wsa-macro.c
+++ b/sound/soc/codecs/lpass-wsa-macro.c
@@ -1567,17 +1567,14 @@ static int wsa_macro_enable_mix_path(struct snd_soc_dapm_widget *w,
 				     struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
-	u16 path_reg, gain_reg;
-	int val;
+	u16 path_reg;
 
 	switch (w->shift) {
 	case WSA_MACRO_RX_MIX0:
 		path_reg = CDC_WSA_RX0_RX_PATH_MIX_CTL;
-		gain_reg = CDC_WSA_RX0_RX_VOL_MIX_CTL;
 		break;
 	case WSA_MACRO_RX_MIX1:
 		path_reg = CDC_WSA_RX1_RX_PATH_MIX_CTL;
-		gain_reg = CDC_WSA_RX1_RX_VOL_MIX_CTL;
 		break;
 	default:
 		return 0;
@@ -1585,8 +1582,6 @@ static int wsa_macro_enable_mix_path(struct snd_soc_dapm_widget *w,
 
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
-		val = snd_soc_component_read(component, gain_reg);
-		snd_soc_component_write(component, gain_reg, val);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		snd_soc_component_update_bits(component, path_reg,
@@ -1931,7 +1926,6 @@ static int wsa_macro_enable_interpolator(struct snd_soc_dapm_widget *w,
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	u16 gain_reg;
 	u16 reg;
-	int val;
 	struct wsa_macro *wsa = snd_soc_component_get_drvdata(component);
 
 	if (w->shift == WSA_MACRO_COMP1) {
@@ -1971,8 +1965,6 @@ static int wsa_macro_enable_interpolator(struct snd_soc_dapm_widget *w,
 					CDC_WSA_RX_PGA_HALF_DB_MASK,
 					CDC_WSA_RX_PGA_HALF_DB_ENABLE);
 		}
-		val = snd_soc_component_read(component, gain_reg);
-		snd_soc_component_write(component, gain_reg, val);
 		wsa_macro_config_ear_spkr_gain(component, wsa,
 						event, gain_reg);
 		break;
-- 
2.51.0