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drm/i915: Always use the fixed panel timing for eDP

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Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhao Yakui 2010-07-19 09:43:13 +01:00 committed by Eric Anholt
parent 1fc7947898
commit 0d3a1beecf
1 changed files with 26 additions and 0 deletions
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26
drivers/gpu/drm/i915/intel_dp.c
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@ -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);