On Wed, Mar 23, 2016 at 12:49 PM, Axel Lin [off-list ref] wrote:

i2c_smbus_write_byte_data() can fail. To ensure the cached buffer has
consistent status with h/w status, don't update the cached gpio->buffer
if write fails.
Also refactor the code a bit by adding a tpic2810_set_mask_bits() helper
and use it to simplify the code.

Signed-off-by: Axel Lin <redacted>

Patch applied with Alexandre's review tag.

Yours,
Linus Walleij