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ASoC: wm8904: fix wrong outputs volume after power reactivation

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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: a91eb199e4 ("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>
This commit is contained in:
Emanuele Ghidoli 2022-12-23 09:02:47 +01:00 committed by Mark Brown
parent 810948f45d
commit 472a6309c6
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 7 additions and 0 deletions
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7
sound/soc/codecs/wm8904.c
View file

@ -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: