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From: Keith Packard <keithp@keithp.com>
To: Dave Airlie <airlied@redhat.com>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org,
	Keith Packard <keithp@keithp.com>
Subject: [PATCH 8/9] drm/i915: All PCH refclks are 120MHz
Date: Mon, 26 Sep 2011 23:11:45 -0700	[thread overview]
Message-ID: <1317103906-4649-9-git-send-email-keithp@keithp.com> (raw)
In-Reply-To: <1317103906-4649-1-git-send-email-keithp@keithp.com>

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>
---
 drivers/gpu/drm/i915/intel_display.c |   14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 66cd351..919db79 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5271,16 +5271,10 @@ 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
-- 
1.7.6.3


  parent reply	other threads:[~2011-09-27  6:12 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <yunbou6lxb4.fsf@aiko.keithp.com>
2011-09-27  6:11 ` PCH reference clock cleanups Keith Packard
2011-09-27  6:11   ` [PATCH 1/9] drm/i915: broken copyright encoding in intel_bios.c Keith Packard
2011-09-27  6:11   ` [PATCH 2/9] drm/i915: Use DRM_DEBUG_KMS for all messages " Keith Packard
2011-09-27 16:39     ` Chris Wilson
2011-09-27  6:11   ` [PATCH 3/9] drv/i915: Pull display_clock_mode out of VBT table Keith Packard
2011-09-27 16:40     ` Chris Wilson
2011-09-27  6:11   ` [PATCH 4/9] drm/i915: Document a few more BDB_GENERAL_FEATURES bits from PCH BIOS Keith Packard
2011-09-27  6:11   ` [PATCH 5/9] drm/i915: Allow SSC parameter to override VBT value Keith Packard
2011-09-27 16:41     ` Chris Wilson
2011-09-27  6:11   ` [PATCH 6/9] drm/i915: Fix PCH SSC reference clock settings Keith Packard
2011-09-27 16:47     ` Chris Wilson
2011-09-27 18:03       ` Keith Packard
2011-09-28  9:09         ` Chris Wilson
2011-09-28 16:36           ` Keith Packard
2011-09-27  6:11   ` [PATCH 7/9] drm/i915: Use CK505 as non-SSC source where available Keith Packard
2011-09-27 16:49     ` Chris Wilson
2011-09-27  6:11   ` Keith Packard [this message]
2011-09-27 16:53     ` [PATCH 8/9] drm/i915: All PCH refclks are 120MHz Chris Wilson
2011-09-27  6:11   ` [PATCH 9/9] drm/i915: Initialize PCH refclks at modeset init time Keith Packard
2011-09-27 16:56     ` Chris Wilson
2011-09-27 18:11       ` Keith Packard
2011-10-03 21:12         ` [Intel-gfx] " Jesse Barnes
2011-09-28 23:15     ` Keith Packard
2011-09-27  9:01   ` PCH reference clock cleanups Chris Wilson
2011-09-27 16:54     ` Keith Packard
2011-09-28 18:22   ` [Intel-gfx] " Paulo Zanoni
2011-09-28 20:02     ` Keith Packard
2011-10-03 21:14     ` Jesse Barnes
2011-10-03 23:18       ` Keith Packard
2011-10-03 23:21         ` Jesse Barnes
2011-10-03 23:39           ` Keith Packard

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