Commit f58ff854 authored Sep 28, 2011 by Keith Packard

drm/i915: Ensure eDP powered up during DP_SET_POWER operation in dp_prepare



Any call to intel_dp_sink_dpms must ensure that the panel has power so
that the DP_SET_POWER operation will be correctly received. The only
one missing this was in intel_dp_prepare.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 0b5c541b

drivers/gpu/drm/i915/intel_dp.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1039,7 +1039,9 @@ static void intel_dp_prepare(struct drm_encoder *encoder)
		struct drm_device *dev = encoder->dev;

		/* Wake up the sink first */
		ironlake_edp_panel_vdd_on(intel_dp);
		intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
		ironlake_edp_panel_vdd_off(intel_dp);

		if (is_edp(intel_dp)) {
		ironlake_edp_backlight_off(dev);