Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752724AbaFDXVc (ORCPT ); Wed, 4 Jun 2014 19:21:32 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:39883 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752688AbaFDXVa (ORCPT ); Wed, 4 Jun 2014 19:21:30 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Deucher Subject: [PATCH 3.14 068/228] drm/radeon: disable mclk dpm on R7 260X Date: Wed, 4 Jun 2014 16:21:37 -0700 Message-Id: <20140604232350.247206194@linuxfoundation.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <20140604232347.966798903@linuxfoundation.org> References: <20140604232347.966798903@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit 57700ad1f2f21d5d7ab7ee0e58d11b5954852434 upstream. Setting higher mclks seems to cause stability issues on some R7 260X boards. Disable it for now for stability until we find a proper fix. bug: https://bugs.freedesktop.org/show_bug.cgi?id=75992 Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/ci_dpm.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/radeon/ci_dpm.c +++ b/drivers/gpu/drm/radeon/ci_dpm.c @@ -5106,6 +5106,10 @@ int ci_dpm_init(struct radeon_device *rd pi->mclk_dpm_key_disabled = 0; pi->pcie_dpm_key_disabled = 0; + /* mclk dpm is unstable on some R7 260X cards */ + if (rdev->pdev->device == 0x6658) + pi->mclk_dpm_key_disabled = 1; + pi->caps_sclk_ds = true; pi->mclk_strobe_mode_threshold = 40000; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/