From patchwork Fri Jul 20 13:54:04 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Deucher X-Patchwork-Id: 1221161 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 160783FD48 for ; Fri, 20 Jul 2012 13:54:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E4F5A9ED30 for ; Fri, 20 Jul 2012 06:54:24 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-qc0-f181.google.com (mail-qc0-f181.google.com [209.85.216.181]) by gabe.freedesktop.org (Postfix) with ESMTP id 67B899E801 for ; Fri, 20 Jul 2012 06:54:11 -0700 (PDT) Received: by qcpx40 with SMTP id x40so2825071qcp.26 for ; Fri, 20 Jul 2012 06:54:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer; bh=MSRaJ1s2jfWrcu7n4J84JPcPKrJbeNdD7JgPr+GDOv4=; b=ZNjhc2MSuudjIaueJh4lroFJT12h8b2OcBRptVLB+ziMrc5Rk4ZV98VGL/o41RMDaG 4ta/rhOtMitf2ZE8h3t29vQ9Sm+oV7rpeTc/m/agP+CiYQviDh5ceb5HpsVNqgBEeUKI BWKzkk0tA3r7DL6bHzmKWYAVz7SH4sF9xspubQBhUnvDQnfZBdIelZvUgBXp/wqVodju LqiXKhuTr4GSG9rX+jklWmPXJYVAT93AowAjehZCU1o2EiTH8Lty24dNhcdv8NS+m+r8 rDd867MM9+jZgD8OESHu/Vg1qFnfg3Y+mogbSL0hnAUFwwvVYPzXHHVy99yFXfW1zzZP crcQ== Received: by 10.224.110.73 with SMTP id m9mr10194415qap.6.1342792450862; Fri, 20 Jul 2012 06:54:10 -0700 (PDT) Received: from localhost.localdomain (static-74-96-105-49.washdc.fios.verizon.net. [74.96.105.49]) by mx.google.com with ESMTPS id v3sm489947qaz.5.2012.07.20.06.54.09 (version=SSLv3 cipher=OTHER); Fri, 20 Jul 2012 06:54:09 -0700 (PDT) From: alexdeucher@gmail.com To: airlied@gmail.com, dri-devel@lists.freedesktop.org Subject: [PATCH] drm/radeon: fix handling for ddc type 5 on combios Date: Fri, 20 Jul 2012 09:54:04 -0400 Message-Id: <1342792444-18140-1-git-send-email-alexdeucher@gmail.com> X-Mailer: git-send-email 1.7.7.5 Cc: Alex Deucher X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org From: Alex Deucher When ddc type is 5, need to look up the i2c channel in the i2c table. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_combios.c | 57 +++++++++++++++++++----------- 1 files changed, 36 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 576f4f6..f75247d 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -719,6 +719,34 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde return i2c; } +static struct radeon_i2c_bus_rec radeon_combios_get_i2c_info_from_table(struct radeon_device *rdev) +{ + struct drm_device *dev = rdev->ddev; + struct radeon_i2c_bus_rec i2c; + u16 offset; + u8 id, blocks, clk, data; + int i; + + i2c.valid = false; + + offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE); + if (offset) { + blocks = RBIOS8(offset + 2); + for (i = 0; i < blocks; i++) { + id = RBIOS8(offset + 3 + (i * 5) + 0); + if (id == 136) { + clk = RBIOS8(offset + 3 + (i * 5) + 3); + data = RBIOS8(offset + 3 + (i * 5) + 4); + /* gpiopad */ + i2c = combios_setup_i2c_bus(rdev, DDC_MONID, + (1 << clk), (1 << data)); + break; + } + } + } + return i2c; +} + void radeon_combios_i2c_init(struct radeon_device *rdev) { struct drm_device *dev = rdev->ddev; @@ -755,30 +783,14 @@ void radeon_combios_i2c_init(struct radeon_device *rdev) } else if (rdev->family == CHIP_RS300 || rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) { - u16 offset; - u8 id, blocks, clk, data; - int i; - /* 0x68 */ i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0); rdev->i2c_bus[3] = radeon_i2c_create(dev, &i2c, "MONID"); - offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE); - if (offset) { - blocks = RBIOS8(offset + 2); - for (i = 0; i < blocks; i++) { - id = RBIOS8(offset + 3 + (i * 5) + 0); - if (id == 136) { - clk = RBIOS8(offset + 3 + (i * 5) + 3); - data = RBIOS8(offset + 3 + (i * 5) + 4); - /* gpiopad */ - i2c = combios_setup_i2c_bus(rdev, DDC_MONID, - (1 << clk), (1 << data)); - rdev->i2c_bus[4] = radeon_i2c_create(dev, &i2c, "GPIOPAD_MASK"); - break; - } - } - } + /* gpiopad */ + i2c = radeon_combios_get_i2c_info_from_table(rdev); + if (i2c.valid) + rdev->i2c_bus[4] = radeon_i2c_create(dev, &i2c, "GPIOPAD_MASK"); } else if ((rdev->family == CHIP_R200) || (rdev->family >= CHIP_R300)) { /* 0x68 */ @@ -2321,7 +2333,10 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev) connector = (tmp >> 12) & 0xf; ddc_type = (tmp >> 8) & 0xf; - ddc_i2c = combios_setup_i2c_bus(rdev, ddc_type, 0, 0); + if (ddc_type == 5) + ddc_i2c = radeon_combios_get_i2c_info_from_table(rdev); + else + ddc_i2c = combios_setup_i2c_bus(rdev, ddc_type, 0, 0); switch (connector) { case CONNECTOR_PROPRIETARY_LEGACY: