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Richard Fitzgerald 26c8641769 firmware: cs_dsp: Remove async regmap writes ... [ Upstream commit fe08b7d508 ] Change calls to async regmap write functions to use the normal blocking writes so that the cs35l56 driver can use spi_bus_lock() to gain exclusive access to the SPI bus. As this is part of a fix, it makes only the minimal change to swap the functions to the blocking equivalents. There's no need to risk reworking the buffer allocation logic that is now partially redundant. The async writes are a 12-year-old workaround for inefficiency of synchronous writes in the SPI subsystem. The SPI subsystem has since been changed to avoid the overheads, so this workaround should not be necessary. The cs35l56 driver needs to use spi_bus_lock() prevent bus activity while it is soft-resetting the cs35l56. But spi_bus_lock() is incompatible with spi_async() calls, which will fail with -EBUSY. Fixes: 8a731fd37f ("ASoC: cs35l56: Move utility functions to shared file") Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://patch.msgid.link/20250225131843.113752-2-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-03-07 16:45:40 +01:00
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cs_dsp.c	firmware: cs_dsp: Remove async regmap writes	2025-03-07 16:45:40 +01:00
Kconfig	firmware: cs_dsp: Rename KConfig symbol CS_DSP -> FW_CS_DSP	2022-11-25 11:53:59 +00:00
Makefile	firmware: cs_dsp: Rename KConfig symbol CS_DSP -> FW_CS_DSP	2022-11-25 11:53:59 +00:00