Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753786AbcDVLGe (ORCPT ); Fri, 22 Apr 2016 07:06:34 -0400 Received: from mx2.suse.de ([195.135.220.15]:43999 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753591AbcDVLGZ (ORCPT ); Fri, 22 Apr 2016 07:06:25 -0400 X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" From: Jiri Slaby To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alex Deucher , Jiri Slaby Subject: [PATCH 3.12 45/78] drm/radeon: add a dpm quirk for all R7 370 parts Date: Fri, 22 Apr 2016 13:05:28 +0200 Message-Id: X-Mailer: git-send-email 2.8.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1023 Lines: 34 From: Alex Deucher 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit 0e5585dc870af947fab2af96a88c2d8b4270247c upstream. Higher mclk values are not stable due to a bug somewhere. Limit them for now. Signed-off-by: Alex Deucher Signed-off-by: Jiri Slaby --- drivers/gpu/drm/radeon/si_dpm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 34527c050062..393217886d98 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3008,6 +3008,10 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev, ps->performance_levels[i].sclk = max_sclk; } } + /* limit mclk on all R7 370 parts for stability */ + if (rdev->pdev->device == 0x6811 && + rdev->pdev->revision == 0x81) + max_mclk = 120000; /* XXX validate the min clocks required for display */ -- 2.8.1