diff mbox series

[v1] ASoC: wm8904: fix wrong outputs volume after power reactivation

Message ID 20221223080247.7258-1-francesco@dolcini.it (mailing list archive)
State Accepted
Commit 472a6309c6467af89dbf660a8310369cc9cb041f
Headers show
Series [v1] ASoC: wm8904: fix wrong outputs volume after power reactivation | expand

Commit Message

Francesco Dolcini Dec. 23, 2022, 8:02 a.m. UTC
From: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>

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>
---
 sound/soc/codecs/wm8904.c | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Charles Keepax Dec. 28, 2022, 10:04 a.m. UTC | #1
On Fri, Dec 23, 2022 at 09:02:47AM +0100, Francesco Dolcini wrote:
> From: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
> 
> 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>

Thanks,
Charles
Mark Brown Dec. 29, 2022, 10:50 p.m. UTC | #2
On Fri, 23 Dec 2022 09:02:47 +0100, Francesco Dolcini wrote:
> 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.
> 
> 
> [...]

Applied to

   broonie/sound.git for-next

Thanks!

[1/1] ASoC: wm8904: fix wrong outputs volume after power reactivation
      commit: 472a6309c6467af89dbf660a8310369cc9cb041f

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark
diff mbox series

Patch

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: