From c66995ae403073212f5ba60d2079003866c6e130 Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Wed, 3 Jul 2024 10:55:16 +0100 Subject: [PATCH 1/2] ASoC: cs35l56: Use header defines for Speaker Volume control definition The "Speaker Volume" control was being defined using four hardcoded magic numbers. There are #defines in the cs35l56.h header for these numbers, so change the code to use the defined constants. Signed-off-by: Richard Fitzgerald Link: https://patch.msgid.link/20240703095517.208077-2-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- sound/soc/codecs/cs35l56.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c index 7cac9812f5b5..84c34f5b1a51 100644 --- a/sound/soc/codecs/cs35l56.c +++ b/sound/soc/codecs/cs35l56.c @@ -71,7 +71,11 @@ static const struct snd_kcontrol_new cs35l56_controls[] = { cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), SOC_SINGLE_S_EXT_TLV("Speaker Volume", CS35L56_MAIN_RENDER_USER_VOLUME, - 6, -400, 400, 9, 0, + CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT, + CS35L56_MAIN_RENDER_USER_VOLUME_MIN, + CS35L56_MAIN_RENDER_USER_VOLUME_MAX, + CS35L56_MAIN_RENDER_USER_VOLUME_SIGNBIT, + 0, cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw, vol_tlv), From 244389bd42870640c4b5ef672a360da329b579ed Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Wed, 3 Jul 2024 10:55:17 +0100 Subject: [PATCH 2/2] ASoC: cs35l56: Limit Speaker Volume to +12dB maximum Change CS35L56_MAIN_RENDER_USER_VOLUME_MAX to 48, to limit the maximum value of the Speaker Volume control to +12dB. The minimum value is unchanged so that the default 0dB has the same integer control value. The original maximum of 400 (+100dB) was the largest value that can be mathematically handled by the DSP. The actual maximum amplification is +12dB. Signed-off-by: Richard Fitzgerald Link: https://patch.msgid.link/20240703095517.208077-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- include/sound/cs35l56.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h index 642ef690ebc2..a6aa112e5741 100644 --- a/include/sound/cs35l56.h +++ b/include/sound/cs35l56.h @@ -207,7 +207,7 @@ /* CS35L56_MAIN_RENDER_USER_VOLUME */ #define CS35L56_MAIN_RENDER_USER_VOLUME_MIN -400 -#define CS35L56_MAIN_RENDER_USER_VOLUME_MAX 400 +#define CS35L56_MAIN_RENDER_USER_VOLUME_MAX 48 #define CS35L56_MAIN_RENDER_USER_VOLUME_MASK 0x0000FFC0 #define CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT 6 #define CS35L56_MAIN_RENDER_USER_VOLUME_SIGNBIT 9