Messages in this thread | | | From | Elaine Zhang <> | Subject | [PATCH 0/0] regmap: drop cache if the bus transfer error | Date | Thu, 18 Aug 2016 14:43:51 +0800 |
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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
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