drm/i915: remove now unnecessary delays in eDP panel power sequencing

Now that we're doing the right thing elsewhere, these are no longer
necessary.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31114
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1f4242b682c8a8edee1e8c568add1fedf2be3f25..ad6925ea2b5130df23585e5156e26350a8bd5d96 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -834,11 +834,6 @@ static bool ironlake_edp_panel_on (struct intel_dp *intel_dp)
        I915_WRITE(PCH_PP_CONTROL, pp);
        POSTING_READ(PCH_PP_CONTROL);
 
-       /* Ouch. We need to wait here for some panels, like Dell e6510
-        * https://bugs.freedesktop.org/show_bug.cgi?id=29278i
-        */
-       msleep(300);
-
        if (wait_for((I915_READ(PCH_PP_STATUS) & idle_on_mask) == idle_on_mask,
                     5000))
                DRM_ERROR("panel on wait timed out: 0x%08x\n",
@@ -875,11 +870,6 @@ static void ironlake_edp_panel_off (struct drm_device *dev)
        pp |= PANEL_POWER_RESET; /* restore panel reset bit */
        I915_WRITE(PCH_PP_CONTROL, pp);
        POSTING_READ(PCH_PP_CONTROL);
-
-       /* Ouch. We need to wait here for some panels, like Dell e6510
-        * https://bugs.freedesktop.org/show_bug.cgi?id=29278i
-        */
-       msleep(300);
 }
 
 static void ironlake_edp_backlight_on (struct drm_device *dev)