ASoC: wm8962: Wait for updated value of WM8962_CLOCKING1 register
authorChancel Liu <chancel.liu@nxp.com>
Wed, 9 Nov 2022 12:13:54 +0000 (20:13 +0800)
committerMark Brown <broonie@kernel.org>
Wed, 9 Nov 2022 19:19:49 +0000 (19:19 +0000)
commit3ca507bf99611c82dafced73e921c1b10ee12869
treee3d1e5000a2b5bbc0fec327cf4a93576eae57b3f
parent7d945b046be3d2605dbb1806e73095aadd7ae129
ASoC: wm8962: Wait for updated value of WM8962_CLOCKING1 register

DSPCLK_DIV field in WM8962_CLOCKING1 register is used to generate
correct frequency of LRCLK and BCLK. Sometimes the read-only value
can't be updated timely after enabling SYSCLK. This results in wrong
calculation values. Delay is introduced here to wait for newest value
from register. The time of the delay should be at least 500~1000us
according to test.

Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221109121354.123958-1-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/wm8962.c