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| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2024-07-03 10:55:17 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-07-03 13:05:43 +0100 |
| commit | 244389bd42870640c4b5ef672a360da329b579ed (patch) | |
| tree | e9ec1037f00553de5a453a71825cd94e5c5ddfda /include/sound | |
| parent | c66995ae403073212f5ba60d2079003866c6e130 (diff) | |
| download | lwn-244389bd42870640c4b5ef672a360da329b579ed.tar.gz lwn-244389bd42870640c4b5ef672a360da329b579ed.zip | |
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 <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20240703095517.208077-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/cs35l56.h | 2 |
1 files changed, 1 insertions, 1 deletions
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 |