This is a note to let you know that I've just added the patch titled
drm/i915: Turn off hsync and vsync on ADPA when disabling crt
to the 3.8-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-i915-turn-off-hsync-and-vsync-on-adpa-when-disabling-crt.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f40ebd6bcbbd0d30591f42dc16be52b5086a366b Mon Sep 17 00:00:00 2001
From: Patrik Jakobsson <patrik.r.jakobsson@xxxxxxxxx>
Date: Tue, 5 Mar 2013 14:24:48 +0100
Subject: drm/i915: Turn off hsync and vsync on ADPA when disabling crt
From: Patrik Jakobsson <patrik.r.jakobsson@xxxxxxxxx>
commit f40ebd6bcbbd0d30591f42dc16be52b5086a366b upstream.
According to PRM we need to disable hsync and vsync even though ADPA is
disabled. The previous code did infact do the opposite so we fix it.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@xxxxxxxxx>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56359
Tested-by: max <manikulin@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_crt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -88,7 +88,7 @@ static void intel_disable_crt(struct int
u32 temp;
temp = I915_READ(crt->adpa_reg);
- temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
+ temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;
temp &= ~ADPA_DAC_ENABLE;
I915_WRITE(crt->adpa_reg, temp);
}
Patches currently in stable-queue which might be from patrik.r.jakobsson@xxxxxxxxx are
queue-3.8/drm-i915-turn-off-hsync-and-vsync-on-adpa-when-disabling-crt.patch
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