From cbaa331504d16489c8b207da960351e7b0afb3e2 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Date: Mon, 15 May 2017 16:56:05 -0500
Subject: [PATCH] gpu: drm: i915: remove dead code
Git-commit: cbaa331504d16489c8b207da960351e7b0afb3e2
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900

Local variable has_reduced_clock is assigned to a constant value and it is
never updated again. Remove this variable and the dead code it guards.

Addresses-coverity-id: 1362230
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170515215605.GA14963@embeddedgus
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/intel_display.c |    9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8202,8 +8202,6 @@ static int ironlake_crtc_compute_clock(s
 {
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct dpll reduced_clock;
-	bool has_reduced_clock = false;
 	struct intel_shared_dpll *pll;
 	const struct intel_limit *limit;
 	int refclk = 120000;
@@ -8246,8 +8244,7 @@ static int ironlake_crtc_compute_clock(s
 		return -EINVAL;
 	}
 
-	ironlake_compute_dpll(crtc, crtc_state,
-			      has_reduced_clock ? &reduced_clock : NULL);
+	ironlake_compute_dpll(crtc, crtc_state, NULL);
 
 	pll = intel_get_shared_dpll(crtc, crtc_state, NULL);
 	if (pll == NULL) {
@@ -8256,10 +8253,6 @@ static int ironlake_crtc_compute_clock(s
 		return -EINVAL;
 	}
 
-	if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) &&
-	    has_reduced_clock)
-		crtc->lowfreq_avail = true;
-
 	return 0;
 }