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[06/14] drm/i915: Remove the "three times for luck" trick from vlv_enable_pll()

Message ID 1441306216-6581-7-git-send-email-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ville Syrjala Sept. 3, 2015, 6:50 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

VLV DPLL is sane and doesn't run on luck.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 11 -----------
 1 file changed, 11 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bddc17f..b33450f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1596,17 +1596,6 @@  static void vlv_enable_pll(struct intel_crtc *crtc,
 
 	I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md);
 	POSTING_READ(DPLL_MD(pipe));
-
-	/* We do this three times for luck */
-	I915_WRITE(reg, dpll);
-	POSTING_READ(reg);
-	udelay(150); /* wait for warmup */
-	I915_WRITE(reg, dpll);
-	POSTING_READ(reg);
-	udelay(150); /* wait for warmup */
-	I915_WRITE(reg, dpll);
-	POSTING_READ(reg);
-	udelay(150); /* wait for warmup */
 }
 
 static void chv_enable_pll(struct intel_crtc *crtc,