Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757837AbcDLVQL (ORCPT ); Tue, 12 Apr 2016 17:16:11 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:51221 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030399AbcDLU77 (ORCPT ); Tue, 12 Apr 2016 16:59:59 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Alex Deucher , Kamal Mostafa Subject: [PATCH 3.19.y-ckt 26/56] drm/radeon: add a dpm quirk for all R7 370 parts Date: Tue, 12 Apr 2016 13:58:44 -0700 Message-Id: <1460494754-32183-27-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1460494754-32183-1-git-send-email-kamal@canonical.com> References: <1460494754-32183-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1068 Lines: 34 3.19.8-ckt19 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ 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: Kamal Mostafa --- 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 7c64470..97a3862 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -2956,6 +2956,10 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev, } ++p; } + /* limit mclk on all R7 370 parts for stability */ + if (rdev->pdev->device == 0x6811 && + rdev->pdev->revision == 0x81) + max_mclk = 120000; if ((rdev->pm.dpm.new_active_crtc_count > 1) || ni_dpm_vblank_too_short(rdev)) -- 2.7.4