Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964899AbbEECAO (ORCPT ); Mon, 4 May 2015 22:00:14 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:51790 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932226AbbEEBrY (ORCPT ); Mon, 4 May 2015 21:47:24 -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: Tue, 05 May 2015 02:16:39 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 079/221] drm/radeon: do a posting read in rs600_set_irq 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 Content-Length: 1158 Lines: 39 3.2.69-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit 54acf107e4e66d1f4a697e08a7f60dba9fcf07c3 upstream. To make sure the writes go through the pci bridge. bug: https://bugzilla.kernel.org/show_bug.cgi?id=90741 Signed-off-by: Alex Deucher [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings --- drivers/gpu/drm/radeon/rs600.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -576,6 +576,10 @@ int rs600_irq_set(struct radeon_device * WREG32(R_006540_DxMODE_INT_MASK, mode_int); WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1); WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2); + + /* posting read */ + RREG32(R_000040_GEN_INT_CNTL); + return 0; } -- 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/