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Commit f2263fc7 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon: improve dvi_mode_valid 



Make sure we have an HDMI monitor before validating modes with
clocks >165 Mhz on single link connections.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6536a3a6

drivers/gpu/drm/radeon/radeon_connectors.c

+7 −9
Original line number Diff line number Diff line
@@ -1288,18 +1288,16 @@ 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 if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {

			if (ASIC_IS_DCE6(rdev)) {

		else if (ASIC_IS_DCE6(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {

			/* 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

		} else {

			return MODE_CLOCK_HIGH;

		}

	}



	/* check against the max pixel clock */

	if ((mode->clock / 10) > rdev->clock.max_pixel_clock)