This is a note to let you know that I've just added the patch titled
drm/nv50/disp: force dac power state during load detect
to the 3.9-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-force-dac-power-state-during-load-detect.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ea9197cc323839ef3d5280c0453b2c622caa6bc7 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
Date: Mon, 3 Jun 2013 16:07:06 +1000
Subject: drm/nv50/disp: force dac power state during load detect
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
commit ea9197cc323839ef3d5280c0453b2c622caa6bc7 upstream.
fdo#64904
Reported-by: Gerhard Bräunlich <wippbox@xxxxxxx>
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
---
drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c | 4 ++++
drivers/gpu/drm/nouveau/core/include/core/class.h | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
@@ -50,11 +50,15 @@ nv50_dac_sense(struct nv50_disp_priv *pr
{
const u32 doff = (or * 0x800);
int load = -EINVAL;
+ nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80150000);
+ nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
udelay(9500);
nv_wr32(priv, 0x61a00c + doff, 0x80000000);
load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27;
nv_wr32(priv, 0x61a00c + doff, 0x00000000);
+ nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80550000);
+ nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
return load;
}
--- a/drivers/gpu/drm/nouveau/core/include/core/class.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/class.h
@@ -216,7 +216,7 @@ struct nv04_display_class {
#define NV50_DISP_DAC_PWR_STATE 0x00000040
#define NV50_DISP_DAC_PWR_STATE_ON 0x00000000
#define NV50_DISP_DAC_PWR_STATE_OFF 0x00000040
-#define NV50_DISP_DAC_LOAD 0x0002000c
+#define NV50_DISP_DAC_LOAD 0x00020100
#define NV50_DISP_DAC_LOAD_VALUE 0x00000007
#define NV50_DISP_PIOR_MTHD 0x00030000
Patches currently in stable-queue which might be from bskeggs@xxxxxxxxxx are
queue-3.9/drm-nv50-kms-use-dac-loadval-from-vbios-where-it-s-available.patch
queue-3.9/drm-nv50-disp-force-dac-power-state-during-load-detect.patch
--
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