[PATCH 0/2] ASoC: cs35l56: Series to stop writing ASP registers the driver doesn't own

From: Richard Fitzgerald

Date: Fri Nov 13 2026 - 13:13:12 EST


The driver was writing to the ASP registers on systems where it didn't own
control of those registers. These two patches prevent that.

There is more detail in the commit messages of why this problem exists, but
the summary is that these registers are usually owned by the firmware
and/or a secondary (or tertiary) host using the I2C/SPI control interfaces.

Richard Fitzgerald (2):
ASoC: cs35l56: Only write ASP1TXn registers when widget is powered-up
ASoC: cs35l56: Fix unwanted writes to ASP config registers

include/sound/cs35l56.h | 2 +-
sound/soc/codecs/cs35l56-shared.c | 38 +-------
sound/soc/codecs/cs35l56.c | 147 ++++++++++++++++++++++++------
sound/soc/codecs/cs35l56.h | 1 +
4 files changed, 124 insertions(+), 64 deletions(-)

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2.47.3