From 5593946921834a63d89c595ef8459c50d30f5438 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 15 Mar 2016 16:39:59 +0200 Subject: [PATCH] drm/i915: Remove the "three times for luck" trick from vlv_enable_pll() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit VLV DPLL is somewhat sane and doesn't run on luck. Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1458052809-23426-7-git-send-email-ville.syrjala@linux.intel.com Acked-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4fbff487cf2b..cf16bdbbda47 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1546,17 +1546,6 @@ 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, -- 2.20.1