On Wed, Aug 19, 2020 at 02:32:07PM +0200, Łukasz Stelmach wrote: > Signed-off-by: Łukasz Stelmach <l.stelmach@xxxxxxxxxxx> Why? Everything works fine and suddenly minimum timeout is 100 ms? Best regards, Krzysztof > --- > drivers/spi/spi-s3c64xx.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c > index 27d77600a820..27db1e0f6f32 100644 > --- a/drivers/spi/spi-s3c64xx.c > +++ b/drivers/spi/spi-s3c64xx.c > @@ -464,7 +464,8 @@ static int s3c64xx_wait_for_dma(struct s3c64xx_spi_driver_data *sdd, > > /* millisecs to xfer 'len' bytes @ 'cur_speed' */ > ms = xfer->len * 8 * 1000 / sdd->cur_speed; > - ms += 10; /* some tolerance */ > + ms = (ms * 10) + 30; /* some tolerance */ > + ms = max(ms, 100); /* minimum timeout */ > > val = msecs_to_jiffies(ms) + 10; > val = wait_for_completion_timeout(&sdd->xfer_completion, val); > -- > 2.26.2 >
