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ASoC: cs35l56: Limit Speaker Volume to +12dB maximum

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commit 244389bd42 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Richard Fitzgerald
2024-07-03 10:55:17 +01:00
committed by Greg Kroah-Hartman
parent 890e1e6b2f
commit d905723ee6
1 changed files with 1 additions and 1 deletions
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include/sound/cs35l56.h
+1 -1
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@@ -209,7 +209,7 @@
/* 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