From: Keith Packard <keithp@keithp.com>
Date: Tue, 27 Sep 2011 03:42:37 +0000 (-0700)
Subject: drm/i915: All PCH refclks are 120MHz
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=afffb9dfb62a9eb2a6e467a3875907189e49a2d2;p=~shefty%2Frdma-dev.git

drm/i915: All PCH refclks are 120MHz

I can't find any reference clocks which run at 96MHz as seems to be
indicated from the comments in this code.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 4c9684c54f1..b072a35b6f5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5281,16 +5281,10 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
 		num_connectors++;
 	}
 
-	if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
-		refclk = dev_priv->lvds_ssc_freq * 1000;
-		DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
-			      refclk / 1000);
-	} else {
-		refclk = 96000;
-		if (!has_edp_encoder ||
-		    intel_encoder_is_pch_edp(&has_edp_encoder->base))
-			refclk = 120000; /* 120Mhz refclk */
-	}
+	/*
+	 * Every reference clock in a PCH system is 120MHz
+	 */
+	refclk = 120000;
 
 	/*
 	 * Returns a set of divisors for the desired target clock with the given