Commit 2c9d9754 authored by Jesse Barnes's avatar Jesse Barnes Committed by Chris Wilson
Browse files

drm/i915: make sure panel is sequenced off when starting a mode set 



Otherwise we may not be able to train the DP link.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 3ba5c569

drivers/gpu/drm/i915/intel_dp.c

+1 −0
Original line number Diff line number Diff line
@@ -894,6 +894,7 @@ static void intel_dp_prepare(struct drm_encoder *encoder) 
	uint32_t dp_reg = I915_READ(intel_dp->output_reg);



	if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) {

		ironlake_edp_panel_off(dev);

		ironlake_edp_backlight_off(dev);

		ironlake_edp_panel_vdd_on(dev);

		ironlake_edp_pll_on(encoder);

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