On Thu, Aug 27, 2015 at 10:23 AM, <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> AUX addresses are 20 bits long. Send out the entire address instead of
> just the low 16 bits.
>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: "Christian König" <christian.koenig@xxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Applied. thanks!
Alex
> ---
> drivers/gpu/drm/radeon/atombios_dp.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
> index ca372c5..bd73b40 100644
> --- a/drivers/gpu/drm/radeon/atombios_dp.c
> +++ b/drivers/gpu/drm/radeon/atombios_dp.c
> @@ -171,8 +171,9 @@ radeon_dp_aux_transfer_atom(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
> return -E2BIG;
>
> tx_buf[0] = msg->address & 0xff;
> - tx_buf[1] = msg->address >> 8;
> - tx_buf[2] = msg->request << 4;
> + tx_buf[1] = (msg->address >> 8) & 0xff;
> + tx_buf[2] = (msg->request << 4) |
> + ((msg->address >> 16) & 0xf);
> tx_buf[3] = msg->size ? (msg->size - 1) : 0;
>
> switch (msg->request & ~DP_AUX_I2C_MOT) {
> --
> 2.4.6
>
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