On Thu, 2017-07-27 at 15:47 +0300, Andrey Gusakov wrote: > First four bytes should go to DP0_AUXWDATA0. Due to bug if > len > 4 first four bytes was writen to DP0_AUXWDATA1 and all > data get shifted by 4 bytes. Fix it. > > Signed-off-by: Andrey Gusakov <[email protected]> > --- > drivers/gpu/drm/bridge/tc358767.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/bridge/tc358767.c > b/drivers/gpu/drm/bridge/tc358767.c > index c657a00af508..84b0b0fff854 100644 > --- a/drivers/gpu/drm/bridge/tc358767.c > +++ b/drivers/gpu/drm/bridge/tc358767.c > @@ -318,7 +318,7 @@ static ssize_t tc_aux_transfer(struct drm_dp_aux *aux, > tmp = (tmp << 8) | buf[i]; > i++; > if (((i % 4) == 0) || (i == size)) { > - tc_write(DP0_AUXWDATA(i >> 2), tmp); > + tc_write(DP0_AUXWDATA((i - 1) >> 2), tmp); > tmp = 0; > } > }
Acked-by: Philipp Zabel <[email protected]> regards Philipp _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
