[Intel-gfx] [PATCH] drm/i915: don't clear pfit at startup any more

Daniel Vetter daniel.vetter at ffwll.ch
Wed Mar 6 14:55:14 CET 2013


Since

commit 24a1f16de97c4cf0029d9acd04be06db32208726
Author: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Date:   Fri Feb 8 16:35:37 2013 +0200

    drm/i915: disable shared panel fitter for pipe

We clear the single panel fitter when disabling the pipe it's attached to, so no
need to additionally clear it when there's no lvds port detected. Since that
alone isn't good enough e.g. when an external monitor is connected and the bios
uses the panel fitter on that output.

Cc: Mika Kuoppala <mika.kuoppala at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c |    4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 502cb28..8567506 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8318,10 +8318,6 @@ static void intel_setup_outputs(struct drm_device *dev)
 	bool has_lvds;
 
 	has_lvds = intel_lvds_init(dev);
-	if (!has_lvds && !HAS_PCH_SPLIT(dev)) {
-		/* disable the panel fitter on everything but LVDS */
-		I915_WRITE(PFIT_CONTROL, 0);
-	}
 
 	if (!(HAS_DDI(dev) && (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)))
 		intel_crt_init(dev);
-- 
1.7.10.4




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