On 2021-09-10 11:37 a.m., Simon Ser wrote:
> This patch allows panel orientation quirks from DRM core to be
> used. They attach a DRM connector property "panel orientation"
> which indicates in which direction the panel has been mounted.
> Some machines have the internal screen mounted with a rotation.
>
> Since the panel orientation quirks need the native mode from the
> EDID, check for it in amdgpu_dm_connector_ddc_get_modes.
>
> Signed-off-by: Simon Ser <contact@xxxxxxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: Harry Wentland <hwentlan@xxxxxxx>
> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Harry
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 28 +++++++++++++++++++
> 1 file changed, 28 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 53363728dbbd..a420602f1794 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -7680,6 +7680,32 @@ static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder,
> }
> }
>
> +static void amdgpu_set_panel_orientation(struct drm_connector *connector)
> +{
> + struct drm_encoder *encoder;
> + struct amdgpu_encoder *amdgpu_encoder;
> + const struct drm_display_mode *native_mode;
> +
> + if (connector->connector_type != DRM_MODE_CONNECTOR_eDP &&
> + connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
> + return;
> +
> + encoder = amdgpu_dm_connector_to_encoder(connector);
> + if (!encoder)
> + return;
> +
> + amdgpu_encoder = to_amdgpu_encoder(encoder);
> +
> + native_mode = &amdgpu_encoder->native_mode;
> + if (native_mode->hdisplay == 0 || native_mode->vdisplay == 0)
> + return;
> +
> + drm_connector_set_panel_orientation_with_quirk(connector,
> + DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
> + native_mode->hdisplay,
> + native_mode->vdisplay);
> +}
> +
> static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
> struct edid *edid)
> {
> @@ -7708,6 +7734,8 @@ static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
> * restored here.
> */
> amdgpu_dm_update_freesync_caps(connector, edid);
> +
> + amdgpu_set_panel_orientation(connector);
> } else {
> amdgpu_dm_connector->num_modes = 0;
> }
>
