Hi Heiner, On Sat, Mar 04, 2023 at 10:33:05PM +0100, Heiner Kallweit wrote: > I2C core ensures in i2c_smbus_xfer() that the I2C bus lock is held when > calling the smbus_xfer callback. That's i801_access() in our case. > I think it's safe in general to assume that the I2C bus lock is held > when the smbus_xfer callback is called. > Therefore I see no need to define an own mutex. > > Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx> Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxx> Thanks, Andi