25.09.2020 16:52, Jiada Wang пишет: > According to datasheet, mXT1386 chip has a WAKE line, it is used > to wake the chip up from deep sleep mode before communicating with > it via the I2C-compatible interface. > > if the WAKE line is connected to a GPIO line, the line must be > asserted 25 ms before the host attempts to communicate with the mXT1386. > If the WAKE line is connected to the SCL pin, the mXT1386 will send a > NACK on the first attempt to address it, the host must then retry 25 ms > later. > > This patch adds compatible string "atmel,mXT1386" for mXT1386 controller, > when I2C transfer on mXT1386 fails, retry the transfer once after a 25 ms > sleep. > > Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx> > --- > drivers/input/touchscreen/atmel_mxt_ts.c | 62 +++++++++++++++++++----- > 1 file changed, 50 insertions(+), 12 deletions(-) Hello, Jiada! Thank you very much! Will be nice if this patch could land to v5.10 :) Reviewed-by: Dmitry Osipenko <digetx@xxxxxxxxx> Tested-by: Dmitry Osipenko <digetx@xxxxxxxxx>
