ASoC: max98371: Fix the Speaker DHT Min Volume bits

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Register 0x31 holds two 4-bit fields. The datasheet puts SPK_GAIN_MIN
at bits 7:4 and DHT_VROT_PNT at bits 3:0. The Speaker DHT Min Volume
and Speaker DHT Rotation Volume controls both use bits 3:0.

So setting the minimum speaker gain changes the DHT rotation point, and
SPK_GAIN_MIN cannot be set.

Move Speaker DHT Min Volume to bits 7:4.

Fixes: ca2cd6bc66 ("ASoC: Add max98371 codec driver")
Assisted-by: Claude:claude-opus-5-5
Signed-off-by: HyeongJun An <sammiee5311@gmail.com>
Link: https://patch.msgid.link/20261008130953.2446692-5-sammiee5311@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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HyeongJun An 2026-10-08 22:09:50 +09:00 • committed by Mark Brown

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sound/soc/codecs/max98371.c

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