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Message-Id: <20161006074731.496420788@linuxfoundation.org>
Date: Thu, 6 Oct 2016 10:28:38 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Sonny Jiang <sonny.jiang@....com>,
Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.4 08/93] drm/radeon/si/dpm: add workaround for for Jet parts
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexander.deucher@....com>
commit 670bb4fd21c966d0d2a59ad4a99bb4889f9a2987 upstream.
Add clock quirks for Jet parts.
Reviewed-by: Sonny Jiang <sonny.jiang@....com>
Tested-by: Sonny Jiang <sonny.jiang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/gpu/drm/radeon/si_dpm.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -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;
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