This is a note to let you know that I've just added the patch titled
drm/radeon: fix PLLs on RS880 and older v2
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-fix-plls-on-rs880-and-older-v2.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 72edd83cc9e5819ed1ee771519143d7594e059f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <[email protected]>
Date: Thu, 29 Jan 2015 16:01:03 +0100
Subject: drm/radeon: fix PLLs on RS880 and older v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <[email protected]>
commit 72edd83cc9e5819ed1ee771519143d7594e059f0 upstream.
This is a workaround for RS880 and older chips which seem to have
an additional limit on the minimum PLL input frequency.
v2: fix signed/unsigned warning
bugs:
https://bugzilla.kernel.org/show_bug.cgi?id=91861
https://bugzilla.kernel.org/show_bug.cgi?id=83461
Signed-off-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/radeon_display.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -959,6 +959,9 @@ void radeon_compute_pll_avivo(struct rad
if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV &&
pll->flags & RADEON_PLL_USE_REF_DIV)
ref_div_max = pll->reference_div;
+ else if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP)
+ /* fix for problems on RS880 */
+ ref_div_max = min(pll->max_ref_div, 7u);
else
ref_div_max = pll->max_ref_div;
Patches currently in stable-queue which might be from [email protected]
are
queue-3.18/drm-radeon-fix-the-crash-in-benchmark-functions.patch
queue-3.18/drm-radeon-fix-plls-on-rs880-and-older-v2.patch
queue-3.18/drm-radeon-fix-the-crash-in-test-functions.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
