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authorEmanuele Ghidoli <emanuele.ghidoli@toradex.com>2022-12-23 11:02:47 +0300
committerMark Brown <broonie@kernel.org>2022-12-29 23:25:00 +0300
commit472a6309c6467af89dbf660a8310369cc9cb041f (patch)
treecaea2a97423711098c170524d2209f31fe8c18e5 /sound
parent810948f45d99c46b60852ef2a5a2777c12d6bb3e (diff)
downloadlinux-472a6309c6467af89dbf660a8310369cc9cb041f.tar.xz
ASoC: wm8904: fix wrong outputs volume after power reactivation
Restore volume after charge pump and PGA activation to ensure that volume settings are correctly applied when re-enabling codec from SND_SOC_BIAS_OFF state. CLASS_W, CHARGE_PUMP and POWER_MANAGEMENT_2 register configuration affect how the volume register are applied and must be configured first. Fixes: a91eb199e4dc ("ASoC: Initial WM8904 CODEC driver") Link: https://lore.kernel.org/all/c7864c35-738c-a867-a6a6-ddf9f98df7e7@gmail.com/ Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20221223080247.7258-1-francesco@dolcini.it Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/wm8904.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index ca6a01a230af..791d8738d1c0 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -697,6 +697,7 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
int dcs_mask;
int dcs_l, dcs_r;
int dcs_l_reg, dcs_r_reg;
+ int an_out_reg;
int timeout;
int pwr_reg;
@@ -712,6 +713,7 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1;
dcs_r_reg = WM8904_DC_SERVO_8;
dcs_l_reg = WM8904_DC_SERVO_9;
+ an_out_reg = WM8904_ANALOGUE_OUT1_LEFT;
dcs_l = 0;
dcs_r = 1;
break;
@@ -720,6 +722,7 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3;
dcs_r_reg = WM8904_DC_SERVO_6;
dcs_l_reg = WM8904_DC_SERVO_7;
+ an_out_reg = WM8904_ANALOGUE_OUT2_LEFT;
dcs_l = 2;
dcs_r = 3;
break;
@@ -792,6 +795,10 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
snd_soc_component_update_bits(component, reg,
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP);
+
+ /* Update volume, requires PGA to be powered */
+ val = snd_soc_component_read(component, an_out_reg);
+ snd_soc_component_write(component, an_out_reg, val);
break;
case SND_SOC_DAPM_POST_PMU: