On Tue, Feb 16, 2021 at 11:25:38PM +0100, Mårten Lindahl wrote: > From: Mårten Lindahl <martenli@xxxxxxxx> > > When the driver starts to send a message with the MASTER_ID field > set (high speed), the whole I2C_ADDR register is overwritten including > MASTER_ID as the SLV_ADDR_MAS field is set. > > This patch preserves already written fields in I2C_ADDR when writing > SLV_ADDR_MAS. > > Signed-off-by: Mårten Lindahl <martenli@xxxxxxxx> > --- > v2: > - Change commit message as the problem is not in the controller but in > the driver. > - Use MASTER_ID macro instead of reading back register contents. > > drivers/i2c/busses/i2c-exynos5.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Tested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Best regards, Krzysztof
