[ 3.5.y.z extended stable ] Patch "drm/i915: Set i9xx sdvo clock limits according to" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Thu Feb 28 11:58:31 UTC 2013


This is a note to let you know that I have just added a patch titled

    drm/i915: Set i9xx sdvo clock limits according to

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From ac68bbf9fc239ea6773603ad7679a983527068f7 Mon Sep 17 00:00:00 2001
From: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
Date: Wed, 13 Feb 2013 22:20:22 +0100
Subject: [PATCH] drm/i915: Set i9xx sdvo clock limits according to
 specifications

commit 4f7dfb6788dd022446847fbbfbe45e13bedb5be2 upstream.

The Intel PRM says the M1 and M2 divisors must be in the range of 10-20 and 5-9.
Since we do all calculations based on them being register values (which are
subtracted by 2) we need to specify them accordingly.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56359
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/gpu/drm/i915/intel_display.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bff2719..78e4274 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -141,8 +141,8 @@ static const intel_limit_t intel_limits_i9xx_sdvo = {
 	.vco = { .min = 1400000, .max = 2800000 },
 	.n = { .min = 1, .max = 6 },
 	.m = { .min = 70, .max = 120 },
-	.m1 = { .min = 10, .max = 22 },
-	.m2 = { .min = 5, .max = 9 },
+	.m1 = { .min = 8, .max = 18 },
+	.m2 = { .min = 3, .max = 7 },
 	.p = { .min = 5, .max = 80 },
 	.p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 200000,
--
1.8.1.2





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