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[6/7] drm/i915: make sure VDD AUX power has time to settle

Message ID 1283974925-2913-7-git-send-email-jbarnes@virtuousgeek.org
State New, archived
Headers show

Commit Message

Jesse Barnes Sept. 8, 2010, 7:42 p.m. UTC
None
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Patch

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 2f7eb5d..3836f1f 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -825,6 +825,7 @@  static void ironlake_edp_panel_vdd_on (struct drm_device *dev)
 	pp |= EDP_FORCE_VDD;
 	I915_WRITE(PCH_PP_CONTROL, pp);
 	POSTING_READ(PCH_PP_CONTROL);
+	msleep(300);
 }
 
 static void ironlake_edp_panel_vdd_off (struct drm_device *dev)
@@ -836,6 +837,7 @@  static void ironlake_edp_panel_vdd_off (struct drm_device *dev)
 	pp &= ~EDP_FORCE_VDD;
 	I915_WRITE(PCH_PP_CONTROL, pp);
 	POSTING_READ(PCH_PP_CONTROL);
+	msleep(300);
 }
 
 static void ironlake_edp_backlight_on (struct drm_device *dev)