From patchwork Wed Aug 19 14:52:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 7040351 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 094859F6E5 for ; Thu, 20 Aug 2015 02:09:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 11496207E5 for ; Thu, 20 Aug 2015 02:09:27 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id D909C207CF for ; Thu, 20 Aug 2015 02:09:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5CCA87A123; Wed, 19 Aug 2015 19:09:01 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from regular1.263xmail.com (regular1.263xmail.com [211.150.99.134]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5DC936EBD5 for ; Wed, 19 Aug 2015 07:52:38 -0700 (PDT) Received: from ykk?rock-chips.com (unknown [192.168.167.140]) by regular1.263xmail.com (Postfix) with SMTP id EB8B27572; Wed, 19 Aug 2015 22:52:32 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 2FE1A439; Wed, 19 Aug 2015 22:52:25 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <43393eaf70155d6aa60730453545f786> X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 203891J5SHK; Wed, 19 Aug 2015 22:52:27 +0800 (CST) From: Yakir Yang To: Heiko Stuebner , Thierry Reding , Jingoo Han , Fabio Estevam , Inki Dae , joe@perches.com, Russell King Subject: [PATCH v3 14/14] drm: bridge/analogix_dp: add edid modes parse in get_modes method Date: Wed, 19 Aug 2015 09:52:29 -0500 Message-Id: <1439995949-18821-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1439995728-18046-1-git-send-email-ykk@rock-chips.com> References: <1439995728-18046-1-git-send-email-ykk@rock-chips.com> X-Mailman-Approved-At: Wed, 19 Aug 2015 19:08:55 -0700 Cc: seanpaul@google.com, dri-devel@lists.freedesktop.org, Andrzej Hajda , Yakir Yang , Gustavo Padovan , linux-samsung-soc@vger.kernel.org, Vincent Palatin , linux-rockchip@lists.infradead.org, Kishon Vijay Abraham I , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , dianders@google.com, Rob Herring , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Kyungmin Park , djkurtz@google.com, Kumar Gala , ajaynumb@gmail.com, Andy Yan X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Display Port monitor could support kinds of mode which indicate in monitor edid, not just one single display resolution which defined in panel or devivetree property display timing. Signed-off-by: Yakir Yang --- Changes in v3: - Add edid modes parse support Changes in v2: None drivers/gpu/drm/bridge/analogix_dp_core.c | 17 +++++++----- drivers/gpu/drm/bridge/analogix_dp_core.h | 45 ++++++++++++++++--------------- 2 files changed, 33 insertions(+), 29 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c index 052b9b3..83698c6 100644 --- a/drivers/gpu/drm/bridge/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix_dp_core.c @@ -111,7 +111,7 @@ static unsigned char analogix_dp_calc_edid_check_sum(unsigned char *edid_data) static int analogix_dp_read_edid(struct analogix_dp_device *dp) { - unsigned char edid[EDID_BLOCK_LENGTH * 2]; + unsigned char *edid = dp->edid; unsigned int extend_block = 0; unsigned char sum; unsigned char test_vector; @@ -915,12 +915,6 @@ static void analogix_dp_commit(struct analogix_dp_device *dp) DRM_ERROR("failed to disable the panel\n"); } - ret = analogix_dp_handle_edid(dp); - if (ret) { - dev_err(dp->dev, "unable to handle edid\n"); - return; - } - ret = analogix_dp_set_link_train(dp, dp->video_info->max_lane_count, dp->video_info->max_link_rate); if (ret) { @@ -976,8 +970,17 @@ static int analogix_dp_get_modes(struct drm_connector *connector) { struct analogix_dp_device *dp = connector_to_dp(connector); struct analogix_dp_plat_data *plat_data = dp->plat_data; + struct edid *edid = (struct edid *)dp->edid; int num_modes = 0; + if (analogix_dp_handle_edid(dp)) { + dev_err(dp->dev, "unable to handle edid\n"); + return -EINVAL; + } + + drm_mode_connector_update_edid_property(connector, edid); + num_modes += drm_add_edid_modes(connector, edid); + if (plat_data && plat_data->panel) num_modes += drm_panel_get_modes(plat_data->panel); diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix_dp_core.h index 2405155..950b6ca 100644 --- a/drivers/gpu/drm/bridge/analogix_dp_core.h +++ b/drivers/gpu/drm/bridge/analogix_dp_core.h @@ -20,6 +20,28 @@ #define MAX_CR_LOOP 5 #define MAX_EQ_LOOP 5 +/* I2C EDID Chip ID, Slave Address */ +#define I2C_EDID_DEVICE_ADDR 0x50 +#define I2C_E_EDID_DEVICE_ADDR 0x30 + +#define EDID_BLOCK_LENGTH 0x80 +#define EDID_HEADER_PATTERN 0x00 +#define EDID_EXTENSION_FLAG 0x7e +#define EDID_CHECKSUM 0x7f + +/* DP_MAX_LANE_COUNT */ +#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1) +#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f) + +/* DP_LANE_COUNT_SET */ +#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f) + +/* DP_TRAINING_LANE0_SET */ +#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3) +#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3) +#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0) +#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3) + enum link_rate_type { LINK_RATE_1_62GBPS = DP_LINK_BW_1_62, LINK_RATE_2_70GBPS = DP_LINK_BW_2_7, @@ -161,6 +183,7 @@ struct analogix_dp_device { int dpms_mode; int hpd_gpio; bool need_force_hpd; + unsigned char edid[EDID_BLOCK_LENGTH * 2]; struct analogix_dp_plat_data *plat_data; }; @@ -260,26 +283,4 @@ void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp); void analogix_dp_enable_scrambling(struct analogix_dp_device *dp); void analogix_dp_disable_scrambling(struct analogix_dp_device *dp); -/* I2C EDID Chip ID, Slave Address */ -#define I2C_EDID_DEVICE_ADDR 0x50 -#define I2C_E_EDID_DEVICE_ADDR 0x30 - -#define EDID_BLOCK_LENGTH 0x80 -#define EDID_HEADER_PATTERN 0x00 -#define EDID_EXTENSION_FLAG 0x7e -#define EDID_CHECKSUM 0x7f - -/* DP_MAX_LANE_COUNT */ -#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1) -#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f) - -/* DP_LANE_COUNT_SET */ -#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f) - -/* DP_TRAINING_LANE0_SET */ -#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3) -#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3) -#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0) -#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3) - #endif /* _ANALOGIX_DP_CORE_H */