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drm/i915: No need to wait for eDP power off delay if panel is on

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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 <keithp@keithp.com>
This commit is contained in:
Keith Packard 2011-09-29 16:51:26 -07:00
parent 05ce1a4961
commit 32ce697c53
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/i915/intel_dp.c
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@ -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");