From patchwork Wed Dec 23 12:31:55 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 7911321 Return-Path: X-Original-To: patchwork-linux-samsung-soc@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 472A29F349 for ; Wed, 23 Dec 2015 12:33:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 01FF2204A7 for ; Wed, 23 Dec 2015 12:33:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A074920453 for ; Wed, 23 Dec 2015 12:33:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755840AbbLWMcm (ORCPT ); Wed, 23 Dec 2015 07:32:42 -0500 Received: from lucky1.263xmail.com ([211.157.147.133]:38483 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755123AbbLWMck (ORCPT ); Wed, 23 Dec 2015 07:32:40 -0500 Received: from ykk?rock-chips.com (unknown [192.168.167.158]) by lucky1.263xmail.com (Postfix) with SMTP id 2DDA54E515; Wed, 23 Dec 2015 20:31:59 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 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 4BA23291DA; Wed, 23 Dec 2015 20:31:52 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: inki.dae@samsung.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: 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 32420YYIT0V; Wed, 23 Dec 2015 20:31:55 +0800 (CST) From: Yakir Yang To: Inki Dae , Mark Yao , Jingoo Han , Heiko Stuebner Cc: Thierry Reding , Krzysztof Kozlowski , Rob Herring , Russell King , emil.l.velikov@gmail.com, Gustavo Padovan , Kishon Vijay Abraham I , javier@osg.samsung.com, Andy Yan , Yakir Yang , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v12 04/18] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range Date: Wed, 23 Dec 2015 20:31:55 +0800 Message-Id: <1450873915-19023-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1450873538-18304-1-git-send-email-ykk@rock-chips.com> References: <1450873538-18304-1-git-send-email-ykk@rock-chips.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 Both hsync/vsync polarity and interlace mode can be parsed from drm display mode, and dynamic_range and ycbcr_coeff can be judge by the video code. But presumably Exynos still relies on the DT properties, so take good use of mode_fixup() in to achieve the compatibility hacks. Signed-off-by: Yakir Yang Reviewed-by: Krzysztof Kozlowski Tested-by: Javier Martinez Canillas --- Changes in v12: None Changes in v11: None Changes in v10: None Changes in v9: None Changes in v8: None Changes in v7: - Back to use the of_property_read_bool() interfacs to provoid backward compatibility of "hsync-active-high" "vsync-active-high" "interlaced" to avoid -EOVERFLOW error (Krzysztof) Changes in v6: None Changes in v5: - Switch video timing type to "u32", so driver could use "of_property_read_u32" to get the backword timing values. Krzysztof suggest me that driver could use the "of_property_read_bool" to get backword timing values, but that interfacs would modify the original drm_display_mode timing directly (whether those properties exists or not). Changes in v4: - Provide backword compatibility with samsung. (Krzysztof) Changes in v3: - Dynamic parse video timing info from struct drm_display_mode and struct drm_display_info. (Thierry) Changes in v2: None drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 148 +++++++++++++-------- drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 2 +- drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 14 +- 3 files changed, 103 insertions(+), 61 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index fac8ad4..27752df 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -893,8 +893,8 @@ static void analogix_dp_commit(struct analogix_dp_device *dp) return; } - ret = analogix_dp_set_link_train(dp, dp->video_info->lane_count, - dp->video_info->link_rate); + ret = analogix_dp_set_link_train(dp, dp->video_info.lane_count, + dp->video_info.link_rate); if (ret) { dev_err(dp->dev, "unable to do link train\n"); return; @@ -1077,6 +1077,85 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge) dp->dpms_mode = DRM_MODE_DPMS_OFF; } +static void analogix_dp_bridge_mode_set(struct drm_bridge *bridge, + struct drm_display_mode *orig_mode, + struct drm_display_mode *mode) +{ + struct analogix_dp_device *dp = bridge->driver_private; + struct drm_display_info *display_info = &dp->connector.display_info; + struct video_info *video = &dp->video_info; + struct device_node *dp_node = dp->dev->of_node; + int vic; + + /* Input video interlaces & hsync pol & vsync pol */ + video->interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); + video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC); + video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC); + + /* Input video dynamic_range & colorimetry */ + vic = drm_match_cea_mode(mode); + if ((vic == 6) || (vic == 7) || (vic == 21) || (vic == 22) || + (vic == 2) || (vic == 3) || (vic == 17) || (vic == 18)) { + video->dynamic_range = CEA; + video->ycbcr_coeff = COLOR_YCBCR601; + } else if (vic) { + video->dynamic_range = CEA; + video->ycbcr_coeff = COLOR_YCBCR709; + } else { + video->dynamic_range = VESA; + video->ycbcr_coeff = COLOR_YCBCR709; + } + + /* Input vide bpc and color_formats */ + switch (display_info->bpc) { + case 12: + video->color_depth = COLOR_12; + break; + case 10: + video->color_depth = COLOR_10; + break; + case 8: + video->color_depth = COLOR_8; + break; + case 6: + video->color_depth = COLOR_6; + break; + default: + video->color_depth = COLOR_8; + break; + } + if (display_info->color_formats & DRM_COLOR_FORMAT_YCRCB444) + video->color_space = COLOR_YCBCR444; + else if (display_info->color_formats & DRM_COLOR_FORMAT_YCRCB422) + video->color_space = COLOR_YCBCR422; + else if (display_info->color_formats & DRM_COLOR_FORMAT_RGB444) + video->color_space = COLOR_RGB; + else + video->color_space = COLOR_RGB; + + /* + * NOTE: those property parsing code is used for providing backward + * compatibility for samsung platform. + * Due to we used the "of_property_read_u32" interfaces, when this + * property isn't present, the "video_info" can keep the original + * values and wouldn't be modified. + */ + of_property_read_u32(dp_node, "samsung,color-space", + &video->color_space); + of_property_read_u32(dp_node, "samsung,dynamic-range", + &video->dynamic_range); + of_property_read_u32(dp_node, "samsung,ycbcr-coeff", + &video->ycbcr_coeff); + of_property_read_u32(dp_node, "samsung,color-depth", + &video->color_depth); + if (of_property_read_bool(dp_node, "hsync-active-high")) + video->h_sync_polarity = true; + if (of_property_read_bool(dp_node, "vsync-active-high")) + video->v_sync_polarity = true; + if (of_property_read_bool(dp_node, "interlaced")) + video->interlaced = true; +} + static void analogix_dp_bridge_nop(struct drm_bridge *bridge) { /* do nothing */ @@ -1087,6 +1166,7 @@ static const struct drm_bridge_funcs analogix_dp_bridge_funcs = { .disable = analogix_dp_bridge_disable, .pre_enable = analogix_dp_bridge_nop, .post_disable = analogix_dp_bridge_nop, + .mode_set = analogix_dp_bridge_mode_set, .attach = analogix_dp_bridge_attach, }; @@ -1118,62 +1198,24 @@ static int analogix_dp_create_bridge(struct drm_device *drm_dev, return 0; } -static struct video_info *analogix_dp_dt_parse_pdata(struct device *dev) +static int analogix_dp_dt_parse_pdata(struct analogix_dp_device *dp) { - struct device_node *dp_node = dev->of_node; - struct video_info *dp_video_config; - - dp_video_config = devm_kzalloc(dev, sizeof(*dp_video_config), - GFP_KERNEL); - if (!dp_video_config) - return ERR_PTR(-ENOMEM); - - dp_video_config->h_sync_polarity = - of_property_read_bool(dp_node, "hsync-active-high"); - - dp_video_config->v_sync_polarity = - of_property_read_bool(dp_node, "vsync-active-high"); - - dp_video_config->interlaced = - of_property_read_bool(dp_node, "interlaced"); - - if (of_property_read_u32(dp_node, "samsung,color-space", - &dp_video_config->color_space)) { - dev_err(dev, "failed to get color-space\n"); - return ERR_PTR(-EINVAL); - } - - if (of_property_read_u32(dp_node, "samsung,dynamic-range", - &dp_video_config->dynamic_range)) { - dev_err(dev, "failed to get dynamic-range\n"); - return ERR_PTR(-EINVAL); - } - - if (of_property_read_u32(dp_node, "samsung,ycbcr-coeff", - &dp_video_config->ycbcr_coeff)) { - dev_err(dev, "failed to get ycbcr-coeff\n"); - return ERR_PTR(-EINVAL); - } - - if (of_property_read_u32(dp_node, "samsung,color-depth", - &dp_video_config->color_depth)) { - dev_err(dev, "failed to get color-depth\n"); - return ERR_PTR(-EINVAL); - } + struct device_node *dp_node = dp->dev->of_node; + struct video_info *video_info = &dp->video_info; if (of_property_read_u32(dp_node, "samsung,link-rate", - &dp_video_config->link_rate)) { - dev_err(dev, "failed to get link-rate\n"); - return ERR_PTR(-EINVAL); + &video_info->link_rate)) { + dev_err(dp->dev, "failed to get link-rate\n"); + return -EINVAL; } if (of_property_read_u32(dp_node, "samsung,lane-count", - &dp_video_config->lane_count)) { - dev_err(dev, "failed to get lane-count\n"); - return ERR_PTR(-EINVAL); + &video_info->lane_count)) { + dev_err(dp->dev, "failed to get lane-count\n"); + return -EINVAL; } - return dp_video_config; + return 0; } int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev, @@ -1206,9 +1248,9 @@ int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev, */ dp->plat_data = plat_data; - dp->video_info = analogix_dp_dt_parse_pdata(&pdev->dev); - if (IS_ERR(dp->video_info)) - return PTR_ERR(dp->video_info); + ret = analogix_dp_dt_parse_pdata(dp); + if (ret) + return ret; dp->phy = devm_phy_get(dp->dev, "dp"); if (IS_ERR(dp->phy)) { diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h index 911642e..d488dd6 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h @@ -148,7 +148,7 @@ struct analogix_dp_device { unsigned int irq; void __iomem *reg_base; - struct video_info *video_info; + struct video_info video_info; struct link_train link_train; struct work_struct hotplug_work; struct phy *phy; diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index eb0b63c..3858df5 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -1084,15 +1084,15 @@ void analogix_dp_set_video_color_format(struct analogix_dp_device *dp) u32 reg; /* Configure the input color depth, color space, dynamic range */ - reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) | - (dp->video_info->color_depth << IN_BPC_SHIFT) | - (dp->video_info->color_space << IN_COLOR_F_SHIFT); + reg = (dp->video_info.dynamic_range << IN_D_RANGE_SHIFT) | + (dp->video_info.color_depth << IN_BPC_SHIFT) | + (dp->video_info.color_space << IN_COLOR_F_SHIFT); writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_2); /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3); reg &= ~IN_YC_COEFFI_MASK; - if (dp->video_info->ycbcr_coeff) + if (dp->video_info.ycbcr_coeff) reg |= IN_YC_COEFFI_ITU709; else reg |= IN_YC_COEFFI_ITU601; @@ -1229,17 +1229,17 @@ void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp) reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10); reg &= ~INTERACE_SCAN_CFG; - reg |= (dp->video_info->interlaced << 2); + reg |= (dp->video_info.interlaced << 2); writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10); reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10); reg &= ~VSYNC_POLARITY_CFG; - reg |= (dp->video_info->v_sync_polarity << 1); + reg |= (dp->video_info.v_sync_polarity << 1); writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10); reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10); reg &= ~HSYNC_POLARITY_CFG; - reg |= (dp->video_info->h_sync_polarity << 0); + reg |= (dp->video_info.h_sync_polarity << 0); writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10); reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;