From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754390AbaC3Xms (ORCPT ); Sun, 30 Mar 2014 19:42:48 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:37332 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754347AbaC3Xmq (ORCPT ); Sun, 30 Mar 2014 19:42:46 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Alex Deucher" Date: Mon, 31 Mar 2014 00:23:35 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 046/200] drm/radeon: disable ss on DP for DCE3.x In-Reply-To: X-SA-Exim-Connect-IP: 192.168.4.249 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2.56-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit d8e24525094200601236fa64a54cf73e3d682f2e upstream. Seems to cause problems with certain DP monitors. Bug: https://bugs.freedesktop.org/show_bug.cgi?id=40699 Signed-off-by: Alex Deucher [bwh: Backported to 3.2: s/radeon_crtc->//] Signed-off-by: Ben Hutchings --- drivers/gpu/drm/radeon/atombios_crtc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -956,10 +956,13 @@ static void atombios_crtc_set_pll(struct ss_enabled = radeon_atombios_get_ppll_ss_info(rdev, &ss, ATOM_DP_SS_ID1); - } else + } else { ss_enabled = radeon_atombios_get_ppll_ss_info(rdev, &ss, ATOM_DP_SS_ID1); + } + /* disable spread spectrum on DCE3 DP */ + ss_enabled = false; } break; case ATOM_ENCODER_MODE_LVDS: