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-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 22b7e3dc0eca..3f3c9aac46cc 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -972,7 +972,16 @@ static int radeon_dvi_mode_valid(struct drm_connector *connector,
(radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
(radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
return MODE_OK;
- else
+ else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {
+ if (ASIC_IS_DCE3(rdev)) {
+ /* HDMI 1.3+ supports max clock of 340 Mhz */
+ if (mode->clock > 340000)
+ return MODE_CLOCK_HIGH;
+ else
+ return MODE_OK;
+ } else
+ return MODE_CLOCK_HIGH;
+ } else
return MODE_CLOCK_HIGH;
}
return MODE_OK;