[Intel-gfx] [PATCH 2/3 V2] drm/i915: valid all possible modes to be set

[Ma Ling]

if is_lvds flag is true, according to fixed mode line valid all modes.

Signed-off-by: Ma Ling <ling.ma at intel.com>
---
 drivers/gpu/drm/i915/intel_sdvo.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 784e20f..1af41be 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1277,6 +1277,17 @@ static int intel_sdvo_mode_valid(struct drm_connector *connector,
 	if (sdvo_priv->pixel_clock_max < mode->clock)
 		return MODE_CLOCK_HIGH;
 
+	if (sdvo_priv->is_lvds == true) {
+		if (sdvo_priv->sdvo_lvds_fixed_mode == NULL)
+			return MODE_PANEL;
+
+		if (mode->hdisplay > sdvo_priv->sdvo_lvds_fixed_mode->hdisplay)
+			return MODE_PANEL;
+
+		if (mode->vdisplay > sdvo_priv->sdvo_lvds_fixed_mode->vdisplay)
+			return MODE_PANEL;
+	}
+
 	return MODE_OK;
 }
 
-- 
1.5.4.4