| commit | 815806e39bf6f7e7b34875d4a9609dbe76661782 | [log] [tgz] |
|---|---|---|
| author | Elaine Zhang <zhangqing@rock-chips.com> | Thu Aug 18 17:01:55 2016 +0800 |
| committer | Mark Brown <broonie@kernel.org> | Thu Aug 18 11:09:12 2016 +0100 |
| tree | 159196282922d63c2c2a5dc52f7f6053060fb0f2 | |
| parent | b2c7f5d9c939a37c1ce7f86a642de70e3033ee9e [diff] |
regmap: drop cache if the bus transfer error 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. Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Mark Brown <broonie@kernel.org>