Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751940AbcDRC0h (ORCPT ); Sun, 17 Apr 2016 22:26:37 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:35321 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751900AbcDRC0f (ORCPT ); Sun, 17 Apr 2016 22:26:35 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Deucher Subject: [PATCH 3.14 07/37] drm/radeon: add a dpm quirk for all R7 370 parts Date: Mon, 18 Apr 2016 11:25:39 +0900 Message-Id: <20160418022401.088260159@linuxfoundation.org> X-Mailer: git-send-email 2.8.0 In-Reply-To: <20160418022400.661946311@linuxfoundation.org> References: <20160418022400.661946311@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 895 Lines: 32 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher 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: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/si_dpm.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3007,6 +3007,10 @@ static void si_apply_state_adjust_rules( 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 */