From: Zhao Yakui <[email protected]>
Signed-off-by: Zhao Yakui <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Cc: [email protected]
---
drivers/gpu/drm/i915/intel_dp.c | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 74d026c..25168fa 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -511,11 +511,37 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct
drm_display_mode *mode,
{
struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
struct intel_dp_priv *dp_priv = intel_encoder->dev_priv;
+ struct drm_device *dev = encoder->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
int lane_count, clock;
int max_lane_count = intel_dp_max_lane_count(intel_encoder);
int max_clock = intel_dp_max_link_bw(intel_encoder) == DP_LINK_BW_2_7 ?
1 : 0;
static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
+ if ((IS_eDP(intel_encoder) || IS_PCH_eDP(dp_priv)) &&
+ dev_priv->panel_fixed_mode) {
+ struct drm_display_mode *fixed_mode =
dev_priv->panel_fixed_mode;
+
+ adjusted_mode->hdisplay = fixed_mode->hdisplay;
+ adjusted_mode->hsync_start = fixed_mode->hsync_start;
+ adjusted_mode->hsync_end = fixed_mode->hsync_end;
+ adjusted_mode->htotal = fixed_mode->htotal;
+
+ adjusted_mode->vdisplay = fixed_mode->vdisplay;
+ adjusted_mode->vsync_start = fixed_mode->vsync_start;
+ adjusted_mode->vsync_end = fixed_mode->vsync_end;
+ adjusted_mode->vtotal = fixed_mode->vtotal;
+
+ adjusted_mode->clock = fixed_mode->clock;
+ drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
+
+ /*
+ * the mode->clock is used to calculate the Data&Link M/N
+ * of the pipe. For the eDP the fixed clock should be used.
+ */
+ mode->clock = dev_priv->panel_fixed_mode->clock;
+ }
+
for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
for (clock = 0; clock <= max_clock; clock++) {
int link_avail =
intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count);
--
1.7.1
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