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ASoC: SDCA: mask Function_Status value

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According to the SDCA specification [1], when writing Function_Status during
handling this control, the value should mask off bit 7.

[1] MIPI Specification for SoundWire Device Class for Audio, version
    1.1, section 7.14.1.3 (Host Software Handling of Function_Status)

Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260408093835.2881486-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Maciej Strozek 2026-04-08 10:38:32 +01:00 committed by Mark Brown
parent 23e0cbe557
commit 58dec4fac4
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GPG Key ID: 24D68B725D5487D0
1 changed files with 1 additions and 1 deletions
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2
sound/soc/sdca/sdca_interrupts.c
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@ -138,7 +138,7 @@ static irqreturn_t function_status_handler(int irq, void *data)
}
}
ret = regmap_write(interrupt->function_regmap, reg, val);
ret = regmap_write(interrupt->function_regmap, reg, val & 0x7F);
if (ret < 0) {
dev_err(dev, "failed to clear function status: %d\n", ret);
goto error;