It's more like LVDS then DP in some ways.
Signed-off-by: Alex Deucher <alexdeucher@xxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_connectors.c | 80 +++++++++++++++++++++++++---
1 files changed, 72 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 532f17d..ee1dccb 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1055,16 +1055,44 @@ static int radeon_dp_get_modes(struct drm_connector *connector)
int ret;
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
+ struct drm_encoder *encoder;
+ struct drm_display_mode *mode;
+
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_ON);
- }
- ret = radeon_ddc_get_modes(radeon_connector);
- if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
+ ret = radeon_ddc_get_modes(radeon_connector);
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_OFF);
- }
+
+ if (ret > 0) {
+ encoder = radeon_best_single_encoder(connector);
+ if (encoder) {
+ radeon_fixup_lvds_native_mode(encoder, connector);
+ /* add scaled modes */
+ radeon_add_common_modes(encoder, connector);
+ }
+ return ret;
+ }
+
+ encoder = radeon_best_single_encoder(connector);
+ if (!encoder)
+ return 0;
+
+ /* we have no EDID modes */
+ mode = radeon_fp_native_mode(encoder);
+ if (mode) {
+ ret = 1;
+ drm_mode_probed_add(connector, mode);
+ /* add the width/height from vbios tables if available */
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
+ /* add scaled modes */
+ radeon_add_common_modes(encoder, connector);
+ }
+ } else
+ ret = radeon_ddc_get_modes(radeon_connector);
return ret;
}
@@ -1155,6 +1183,15 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
}
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
+ struct drm_encoder *encoder = radeon_best_single_encoder(connector);
+ if (encoder) {
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
+
+ /* check if panel is valid */
+ if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
+ ret = connector_status_connected;
+ }
/* eDP is always DP */
radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
if (!radeon_dig_connector->edp_on)
@@ -1194,11 +1231,38 @@ static int radeon_dp_mode_valid(struct drm_connector *connector,
/* XXX check mode bandwidth */
- if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
- (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
- return radeon_dp_mode_valid_helper(connector, mode);
- else
+ if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
+ struct drm_encoder *encoder = radeon_best_single_encoder(connector);
+
+ if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
+ return MODE_PANEL;
+
+ if (encoder) {
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
+
+ /* AVIVO hardware supports downscaling modes larger than the panel
+ * to the panel size, but I'm not sure this is desirable.
+ */
+ if ((mode->hdisplay > native_mode->hdisplay) ||
+ (mode->vdisplay > native_mode->vdisplay))
+ return MODE_PANEL;
+
+ /* if scaling is disabled, block non-native modes */
+ if (radeon_encoder->rmx_type == RMX_OFF) {
+ if ((mode->hdisplay != native_mode->hdisplay) ||
+ (mode->vdisplay != native_mode->vdisplay))
+ return MODE_PANEL;
+ }
+ }
return MODE_OK;
+ } else {
+ if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
+ (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
+ return radeon_dp_mode_valid_helper(connector, mode);
+ else
+ return MODE_OK;
+ }
}
struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
--
1.7.1.1
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