This is a note to let you know that I've just added the patch titled
drm/nv50/disp: use correct register to determine DP display bpp
to the 3.10-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-nv50-disp-use-correct-register-to-determine-dp-display-bpp.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a7f1c1e65b68e1e1ab70898528d5977ed68a0a7d Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Date: Thu, 13 Feb 2014 21:57:15 -0500
Subject: drm/nv50/disp: use correct register to determine DP display bpp
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
commit a7f1c1e65b68e1e1ab70898528d5977ed68a0a7d upstream.
Commit 0a0afd282f ("drm/nv50-/disp: move DP link training to core and
train from supervisor") added code that uses the wrong register for
computing the display bpp, used for bandwidth calculation. Adjust to use
the same register as used by exec_clkcmp and nv50_disp_intr_unk20_2_dp.
Reported-by: Torsten Wagner <torsten.wagner@xxxxxxxxx>
Reported-by: Michael Gulick <mgulick@xxxxxxxxxxxxx>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67628
Signed-off-by: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/core/engine/disp/nv50.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
@@ -1112,7 +1112,7 @@ nv50_disp_intr_unk20_2(struct nv50_disp_
if (conf != ~0) {
if (outp.location == 0 && outp.type == DCB_OUTPUT_DP) {
u32 soff = (ffs(outp.or) - 1) * 0x08;
- u32 ctrl = nv_rd32(priv, 0x610798 + soff);
+ u32 ctrl = nv_rd32(priv, 0x610794 + soff);
u32 datarate;
switch ((ctrl & 0x000f0000) >> 16) {
Patches currently in stable-queue which might be from imirkin@xxxxxxxxxxxx are
queue-3.10/drm-nouveau-set-irq_enabled-manually.patch
queue-3.10/drm-nv50-disp-use-correct-register-to-determine-dp-display-bpp.patch
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