diff mbox series

[v5,1/4] ASoC: codecs: wsa883x: fix PA volume control

Message ID 20240122181819.4038-2-johan+linaro@kernel.org
State Accepted
Commit b53cc6144a3f6c8b56afcdec89d81195c9b0dc69
Headers show
Series [v5,1/4] ASoC: codecs: wsa883x: fix PA volume control | expand

Commit Message

Johan Hovold Jan. 22, 2024, 6:18 p.m. UTC
The PA gain can be set in steps of 1.5 dB from -3 dB to 18 dB, that is,
in 15 levels.

Fix the dB values for the PA volume control as experiments using wsa8835
show that the first 16 levels all map to the same lowest gain while the
last three map to the highest gain.

These values specifically need to be correct for the sound server to
provide proper volume control.

Note that level 0 (-3 dB) does not mute the PA so the mute flag should
also not be set.

Fixes: cdb09e623143 ("ASoC: codecs: wsa883x: add control, dapm widgets and map")
Cc: stable@vger.kernel.org      # 6.0
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 sound/soc/codecs/wsa883x.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/soc/codecs/wsa883x.c b/sound/soc/codecs/wsa883x.c
index cb83c569e18d..a2e86ef7d18f 100644
--- a/sound/soc/codecs/wsa883x.c
+++ b/sound/soc/codecs/wsa883x.c
@@ -1098,7 +1098,11 @@  static int wsa_dev_mode_put(struct snd_kcontrol *kcontrol,
 	return 1;
 }
 
-static const DECLARE_TLV_DB_SCALE(pa_gain, -300, 150, -300);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(pa_gain,
+	0, 14, TLV_DB_SCALE_ITEM(-300, 0, 0),
+	15, 29, TLV_DB_SCALE_ITEM(-300, 150, 0),
+	30, 31, TLV_DB_SCALE_ITEM(1800, 0, 0),
+);
 
 static int wsa883x_get_swr_port(struct snd_kcontrol *kcontrol,
 				struct snd_ctl_elem_value *ucontrol)