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 <andrey.gusakov@xxxxxxxxxxxxxxxxxx>
> ---
> 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 <p.zabel@xxxxxxxxxxxxxx>
regards
Philipp
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
