[3.11.y.z extended stable] Patch "drm/radeon: don't share PPLLs on DCE4.1" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Thu Dec 5 11:23:50 UTC 2013
This is a note to let you know that I have just added a patch titled
drm/radeon: don't share PPLLs on DCE4.1
to the linux-3.11.y-queue branch of the 3.11.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-3.11.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 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From 5b82aaa7f3e87a3121d84abb6a208dac0e8cfbb7 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher at amd.com>
Date: Thu, 31 Oct 2013 16:43:27 -0400
Subject: drm/radeon: don't share PPLLs on DCE4.1
commit 70471860ff9f335c60c004d42ebd48945bfa5403 upstream.
Sharing PPLLs seems to cause problems on some boards.
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=45334
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
drivers/gpu/drm/radeon/atombios_crtc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index b9d3b43..4c5be9a 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1753,7 +1753,7 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc)
if (pll != ATOM_PPLL_INVALID)
return pll;
}
- } else {
+ } else if (!ASIC_IS_DCE41(rdev)) { /* Don't share PLLs on DCE4.1 chips */
/* use the same PPLL for all monitors with the same clock */
pll = radeon_get_shared_nondp_ppll(crtc);
if (pll != ATOM_PPLL_INVALID)
--
1.8.3.2
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