From patchwork Mon Jan 11 21:38:30 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhenyu Wang X-Patchwork-Id: 72309 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id o0C4gEbT026223 for ; Tue, 12 Jan 2010 04:42:14 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2497E9ED5A; Mon, 11 Jan 2010 20:42:13 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fmsmga101.fm.intel.com (mga05.intel.com [192.55.52.89]) by gabe.freedesktop.org (Postfix) with ESMTP id 862029ED2C for ; Mon, 11 Jan 2010 20:42:11 -0800 (PST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 11 Jan 2010 20:42:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.49,258,1262592000"; d="scan'208";a="530458328" Received: from ubuntu-ilm.sh.intel.com (HELO localhost.localdomain) ([10.239.36.209]) by fmsmga002.fm.intel.com with ESMTP; 11 Jan 2010 20:42:08 -0800 From: Zhenyu Wang To: eric@anholt.net Date: Tue, 12 Jan 2010 05:38:30 +0800 Message-Id: <1263245912-1550-1-git-send-email-zhenyuw@linux.intel.com> X-Mailer: git-send-email 1.6.3.3 Cc: intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH 1/3] drm/i915: parse eDP panel color depth from VBT block X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 29dd676..5f3ee0c 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -283,6 +283,7 @@ typedef struct drm_i915_private { unsigned int lvds_use_ssc:1; unsigned int edp_support:1; int lvds_ssc_freq; + int edp_bpp; struct notifier_block lid_notifier; diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index f275677..d4252be 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -33,6 +33,8 @@ #define SLAVE_ADDR1 0x70 #define SLAVE_ADDR2 0x72 +static int panel_type; + static void * find_section(struct bdb_header *bdb, int section_id) { @@ -128,6 +130,7 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv, dev_priv->lvds_dither = lvds_options->pixel_dither; if (lvds_options->panel_type == 0xff) return; + panel_type = lvds_options->panel_type; lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA); if (!lvds_lfp_data) @@ -405,6 +408,28 @@ parse_driver_features(struct drm_i915_private *dev_priv, } static void +parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) +{ + struct bdb_edp *edp; + + edp = find_section(bdb, BDB_EDP); + if (!edp) + return; + + switch ((edp->color_depth >> (panel_type * 2)) & 3) { + case EDP_18BPP: + dev_priv->edp_bpp = 18; + break; + case EDP_24BPP: + dev_priv->edp_bpp = 24; + break; + case EDP_30BPP: + dev_priv->edp_bpp = 30; + break; + } +} + +static void parse_device_mapping(struct drm_i915_private *dev_priv, struct bdb_header *bdb) { @@ -521,6 +546,7 @@ intel_init_bios(struct drm_device *dev) parse_sdvo_device_mapping(dev_priv, bdb); parse_device_mapping(dev_priv, bdb); parse_driver_features(dev_priv, bdb); + parse_edp(dev_priv, bdb); pci_unmap_rom(pdev, bios); diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 425ac9d..4c18514 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -98,6 +98,7 @@ struct vbios_data { #define BDB_SDVO_LVDS_PNP_IDS 24 #define BDB_SDVO_LVDS_POWER_SEQ 25 #define BDB_TV_OPTIONS 26 +#define BDB_EDP 27 #define BDB_LVDS_OPTIONS 40 #define BDB_LVDS_LFP_DATA_PTRS 41 #define BDB_LVDS_LFP_DATA 42 @@ -426,6 +427,45 @@ struct bdb_driver_features { u8 custom_vbt_version; } __attribute__((packed)); +#define EDP_18BPP 0 +#define EDP_24BPP 1 +#define EDP_30BPP 2 +#define EDP_RATE_1_62 0 +#define EDP_RATE_2_7 1 +#define EDP_LANE_1 0 +#define EDP_LANE_2 1 +#define EDP_LANE_4 3 +#define EDP_PREEMPHASIS_NONE 0 +#define EDP_PREEMPHASIS_3_5dB 1 +#define EDP_PREEMPHASIS_6dB 2 +#define EDP_PREEMPHASIS_9_5dB 3 +#define EDP_VSWING_0_4V 0 +#define EDP_VSWING_0_6V 1 +#define EDP_VSWING_0_8V 2 +#define EDP_VSWING_1_2V 3 + +struct edp_power_seq { + u16 t3; + u16 t7; + u16 t9; + u16 t10; + u16 t12; +} __attribute__ ((packed)); + +struct edp_link_params { + u8 rate:4; + u8 lanes:4; + u8 preemphasis:4; + u8 vswing:4; +} __attribute__ ((packed)); + +struct bdb_edp { + struct edp_power_seq power_seqs[16]; + u32 color_depth; + u32 sdrrs_msa_timing_delay; + struct edp_link_params link_params[16]; +} __attribute__ ((packed)); + bool intel_init_bios(struct drm_device *dev); /*