Mark Brown e3efc4767a ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register
commit f061e2be8689057cb4ec0dbffa9f03e1a23cdcb2 upstream.

The WM8904_ADC_TEST_0 register is modified as part of updating the OSR
controls but does not have a cache default, leading to errors when we try
to modify these controls in cache only mode with no prior read:

wm8904 3-001a: ASoC: error at snd_soc_component_update_bits on wm8904.3-001a for register: [0x000000c6] -16

Add a read of the register to probe() to fill the cache and avoid both the
error messages and the misconfiguration of the chip which will result.

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230723-asoc-fix-wm8904-adc-test-read-v1-1-2cdf2edd83fd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-11 11:53:53 +02:00
..
2022-11-03 23:56:56 +09:00
2022-04-15 14:18:08 +02:00
2019-07-08 14:45:34 +02:00
2019-08-08 08:18:32 +02:00