drm/i915: Remove the "three times for luck" trick from vlv_enable_pll()
VLV DPLL is somewhat sane and doesn't run on luck. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1458052809-23426-7-git-send-email-ville.syrjala@linux.intel.com Acked-by: Jani Nikula <jani.nikula@intel.com>
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@ -1546,17 +1546,6 @@ static void vlv_enable_pll(struct intel_crtc *crtc,
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I915_WRITE(DPLL_MD(pipe), pipe_config->dpll_hw_state.dpll_md);
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POSTING_READ(DPLL_MD(pipe));
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/* We do this three times for luck */
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I915_WRITE(reg, dpll);
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POSTING_READ(reg);
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udelay(150); /* wait for warmup */
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I915_WRITE(reg, dpll);
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POSTING_READ(reg);
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udelay(150); /* wait for warmup */
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I915_WRITE(reg, dpll);
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POSTING_READ(reg);
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udelay(150); /* wait for warmup */
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}
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static void chv_enable_pll(struct intel_crtc *crtc,
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