This is a note to let you know that I've just added the patch titled
drm/radeon: fix multi-head power profile stability on BTC+ asics
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-radeon-fix-multi-head-power-profile-stability-on-btc-asics.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 <[email protected]> know about it.
>From 7ae764b11ed63279e9dcf25be972ff4ca21a9875 Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Mon, 11 Feb 2013 08:44:48 -0500
Subject: drm/radeon: fix multi-head power profile stability on BTC+ asics
From: Alex Deucher <[email protected]>
commit 7ae764b11ed63279e9dcf25be972ff4ca21a9875 upstream.
vddci needs to track mclk for multi-head.
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/evergreen.c | 13 +++++++++++++
drivers/gpu/drm/radeon/radeon_pm.c | 2 +-
2 files changed, 14 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -403,6 +403,19 @@ void evergreen_pm_misc(struct radeon_dev
rdev->pm.current_vddc = voltage->voltage;
DRM_DEBUG("Setting: vddc: %d\n", voltage->voltage);
}
+
+ /* starting with BTC, there is one state that is used for both
+ * MH and SH. Difference is that we always use the high clock
index for
+ * mclk and vddci.
+ */
+ if ((rdev->pm.pm_method == PM_METHOD_PROFILE) &&
+ (rdev->family >= CHIP_BARTS) &&
+ rdev->pm.active_crtc_count &&
+ ((rdev->pm.profile_index == PM_PROFILE_MID_MH_IDX) ||
+ (rdev->pm.profile_index == PM_PROFILE_LOW_MH_IDX)))
+ voltage = &rdev->pm.power_state[req_ps_idx].
+
clock_info[rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx].voltage;
+
/* 0xff01 is a flag rather then an actual voltage */
if (voltage->vddci == 0xff01)
return;
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -169,7 +169,7 @@ static void radeon_set_power_state(struc
/* starting with BTC, there is one state that is used for both
* MH and SH. Difference is that we always use the high clock
index for
- * mclk.
+ * mclk and vddci.
*/
if ((rdev->pm.pm_method == PM_METHOD_PROFILE) &&
(rdev->family >= CHIP_BARTS) &&
Patches currently in stable-queue which might be from [email protected]
are
queue-3.8/drm-radeon-dce6-fix-display-powergating.patch
queue-3.8/drm-radeon-properly-validate-the-atpx-interface.patch
queue-3.8/drm-radeon-fix-multi-head-power-profile-stability-on-btc-asics.patch
queue-3.8/drm-radeon-remove-overzealous-warning-in-hdmi-handling.patch
--
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