regmap_write
->_regmap_raw_write
-->regcache_write first and than use map->bus->write to wirte i2c or spi
But if the i2c or spi transfer failed, But the cache is updated, So if I use
regmap_read will get the cache data which is not the real register value.
I think the regmap should handle that gracefully,
and may be my modify is not the best way.
But as I described is how to slove that problem.
Elaine Zhang (1):
regmap: drop cache if the bus transfer error
drivers/base/regmap/regmap.c | 2 ++
1 file changed, 2 insertions(+)
--
1.9.1
