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Patch "drm/radeon/si/dpm: add workaround for for Jet parts" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Oct 4, 2016

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This is a note to let you know that I've just added the patch titled

drm/radeon/si/dpm: add workaround for for Jet parts

to the 4.4-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-si-dpm-add-workaround-for-for-jet-parts.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 670bb4fd21c966d0d2a59ad4a99bb4889f9a2987 Mon Sep 17 00:00:00 2001

From: Alex Deucher <[email protected]>
Date: Mon, 26 Sep 2016 15:32:50 -0400
Subject: drm/radeon/si/dpm: add workaround for for Jet parts

From: Alex Deucher <[email protected]>

commit 670bb4fd21c966d0d2a59ad4a99bb4889f9a2987 upstream.

Add clock quirks for Jet parts.

---
 drivers/gpu/drm/radeon/si_dpm.c |    6 ++++++
 1 file changed, 6 insertions(+)
drivers/gpu/drm/radeon/si_dpm.c +6 -0
@@ -3015,6 +3015,12 @@ static void si_apply_state_adjust_rules(
 	if (rdev->pdev->device == 0x6811 &&
 	    rdev->pdev->revision == 0x81)
 		max_mclk = 120000;
+	/* limit sclk/mclk on Jet parts for stability */
+	if (rdev->pdev->device == 0x6665 &&
+	    rdev->pdev->revision == 0xc3) {
+		max_sclk = 75000;
+		max_mclk = 80000;
+	}
 
 	if (rps->vce_active) {
 		rps->evclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].evclk;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/drm-radeon-si-dpm-add-workaround-for-for-jet-parts.patch