Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755632Ab0LMAGY (ORCPT ); Sun, 12 Dec 2010 19:06:24 -0500 Received: from one.firstfloor.org ([213.235.205.2]:36316 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755399Ab0LLXrR (ORCPT ); Sun, 12 Dec 2010 18:47:17 -0500 From: Andi Kleen References: <201012131244.547034648@firstfloor.org> In-Reply-To: <201012131244.547034648@firstfloor.org> To: alexdeucher@gmail.com, airlied@redhat.com, gregkh@suse.de, ak@linux.intel.com, linux-kernel@vger.kernel.org, stable@kernel.org Subject: [PATCH] [131/223] drm/radeon/kms: add workaround for dce3 ddc line vbios bug Message-Id: <20101212234713.423D6B27BF@basil.firstfloor.org> Date: Mon, 13 Dec 2010 00:47:13 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1656 Lines: 44 2.6.35-longterm review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit 3074adc8b6d9bf28b574a58241b958057a69a7a0 upstream. fixes: https://bugzilla.kernel.org/show_bug.cgi?id=23752 [AK: Dropped hunk for non existing i2c code in .35] Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman Signed-off-by: Andi Kleen --- drivers/gpu/drm/radeon/radeon_atombios.c | 8 ++++++++ 1 file changed, 8 insertions(+) Index: linux/drivers/gpu/drm/radeon/radeon_atombios.c =================================================================== --- linux.orig/drivers/gpu/drm/radeon/radeon_atombios.c +++ linux/drivers/gpu/drm/radeon/radeon_atombios.c @@ -84,6 +84,14 @@ static inline struct radeon_i2c_bus_rec for (i = 0; i < num_indices; i++) { gpio = &i2c_info->asGPIO_Info[i]; + /* some DCE3 boards have bad data for this entry */ + if (ASIC_IS_DCE3(rdev)) { + if ((i == 4) && + (gpio->usClkMaskRegisterIndex == 0x1fda) && + (gpio->sucI2cId.ucAccess == 0x94)) + gpio->sucI2cId.ucAccess = 0x14; + } + if (gpio->sucI2cId.ucAccess == id) { i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex) * 4; i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex) * 4; -- 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/