[Intel-gfx] [PATCH 1/5] drm/i915: remove PP_ON/OFF waits from LVDS code

[Jesse Barnes]

These aren't actually needed for correct functionality and can speed up
boot and resume a bit.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_lvds.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 8b521a2..8ef9a45 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -104,8 +104,6 @@ static void intel_lvds_enable(struct intel_lvds *intel_lvds)
 
 	I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON);
 	POSTING_READ(lvds_reg);
-	if (wait_for((I915_READ(stat_reg) & PP_ON) != 0, 1000))
-		DRM_ERROR("timed out waiting for panel to power on\n");
 
 	intel_panel_enable_backlight(dev);
 }
@@ -129,8 +127,6 @@ static void intel_lvds_disable(struct intel_lvds *intel_lvds)
 	intel_panel_disable_backlight(dev);
 
 	I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON);
-	if (wait_for((I915_READ(stat_reg) & PP_ON) == 0, 1000))
-		DRM_ERROR("timed out waiting for panel to power off\n");
 
 	if (intel_lvds->pfit_control) {
 		I915_WRITE(PFIT_CONTROL, 0);
-- 
1.7.4.1