From 4771a6aa3bec56243852ef742cdeef65f439d9b3 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 29 Sep 2011 16:51:26 -0700 Subject: [PATCH] drm/i915: No need to wait for eDP power off delay if panel is on If the panel is powered up, there's no need to delay for the 'off' interval when turning the panel on. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_dp.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index f5303e18e791f..6db2a2d824c06 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -869,7 +869,16 @@ static void ironlake_wait_panel_off(struct intel_dp *intel_dp) { unsigned long off_time; unsigned long delay; + DRM_DEBUG_KMS("Wait for panel power off time\n"); + + if (ironlake_edp_have_panel_power(intel_dp) || + ironlake_edp_have_panel_vdd(intel_dp)) + { + DRM_DEBUG_KMS("Panel still on, no delay needed\n"); + return; + } + off_time = intel_dp->panel_off_jiffies + msecs_to_jiffies(intel_dp->panel_power_down_delay); if (time_after(jiffies, off_time)) { DRM_DEBUG_KMS("Time already passed"); -- 2.39.5