From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 749BDC4453A for ; Wed, 21 Jan 2026 13:47:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E2A5A10E7A2; Wed, 21 Jan 2026 13:47:29 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="EXDLm7Pl"; dkim-atps=neutral Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6C8F210E22D; Wed, 21 Jan 2026 13:46:27 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1769003178; cv=none; d=zohomail.com; s=zohoarc; b=SyAMyDaKKo4o8sMbqVNu9U1VYcy6ru7q/Sa6d6S+xV6PCoP2D7ivYsSfKuAsWwR78jINhE1QHCOlBrNyYNQsDl5Baq6904fgC6rX+q2vVKyMQRXN4ZCVPeKchrmoiioa2PnjO6n2rjPer9OZpGyvaeP3RD0qZO90VNOTumIy9eY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1769003178; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=8tbnRLxC7YN9OmZ6Ssd8CDhleEgMPvrSDskSel3YjYw=; b=oBH0DP9UsaQ5coKQJE3hc/8IS14W1xqqa1b0JVNdz26oVOk+LoGFVFutJxlqXVb3tpvnfOWk/vlp2+aj9Hqi2hPNW7v/Z5Z88+kT0+ZCS+LDZVSxFyQndMKymvT+fO1rHnkKmX5EVbe3mz4Qz5JA3hV7XEYbHAL15in0iOOmGs4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1769003178; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=8tbnRLxC7YN9OmZ6Ssd8CDhleEgMPvrSDskSel3YjYw=; b=EXDLm7PlBylZ09uoyc7VtUczgxLe8v4VUF/RlL0G6gkcy0DIwysXoug9F04WjlAu jAcKbhuh+DSpxEnf6TbKNYH7NhLXYBvKk8d6qfuN/I7mgFDy/NXi0v0cyFdA3SLsLTv HSGBIbHWZ5NC8YtwWzmo8ALBrv42lUa4vb3GV93s= Received: by mx.zohomail.com with SMTPS id 1769003176579352.97627818605895; Wed, 21 Jan 2026 05:46:16 -0800 (PST) From: Nicolas Frattaroli Date: Wed, 21 Jan 2026 14:45:29 +0100 Subject: [PATCH v6 03/21] drm: Add enum conversions between DRM_COLOR_FORMAT and HDMI_COLORSPACE MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260121-color-format-v6-3-7b81a771cd0b@collabora.com> References: <20260121-color-format-v6-0-7b81a771cd0b@collabora.com> In-Reply-To: <20260121-color-format-v6-0-7b81a771cd0b@collabora.com> To: Harry Wentland , Leo Li , Rodrigo Siqueira , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , Dmitry Baryshkov , Sascha Hauer , Rob Herring , Jonathan Corbet Cc: kernel@collabora.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-doc@vger.kernel.org, Nicolas Frattaroli , Marius Vlad X-Mailer: b4 0.14.3 X-Mailman-Approved-At: Wed, 21 Jan 2026 13:47:28 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" While the two enums have similar values, they're not identical, and HDMI's enum is defined as per the HDMI standard. Add a simple conversion function from DRM to HDMI. Unexpected inputs aren't handled in any clever way, DRM_COLOR_FORMAT_AUTO and any other value that doesn't cleanly map to HDMI just gets returned as HDMI_COLORSPACE_RGB. Add a second conversion function that gets a DRM_COLOR_FORMAT from an HDMI_COLORSPACE as well. In this case, reserved HDMI values that can't be converted will result in an -EINVAL return value. Co-developed-by: Marius Vlad Signed-off-by: Marius Vlad Signed-off-by: Nicolas Frattaroli --- include/drm/drm_connector.h | 54 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index b5604dca728a..ffeb42f3b4a3 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -2612,6 +2612,60 @@ int drm_connector_attach_color_format_property(struct drm_connector *connector); const char *drm_get_color_format_name(enum drm_color_format color_fmt); +/** + * drm_color_format_to_hdmi_colorspace - convert DRM color format to HDMI + * @fmt: the &enum drm_color_format to convert + * + * Convert a given &enum drm_color_format to an equivalent + * &enum hdmi_colorspace. For non-representable values and + * %DRM_COLOR_FORMAT_AUTO, the value %HDMI_COLORSPACE_RGB is returned. + * + * Returns: the corresponding &enum hdmi_colorspace value + */ +static inline enum hdmi_colorspace __pure +drm_color_format_to_hdmi_colorspace(enum drm_color_format fmt) +{ + switch (fmt) { + default: + case DRM_COLOR_FORMAT_AUTO: + case DRM_COLOR_FORMAT_RGB444: + return HDMI_COLORSPACE_RGB; + case DRM_COLOR_FORMAT_YCBCR444: + return HDMI_COLORSPACE_YUV444; + case DRM_COLOR_FORMAT_YCBCR422: + return HDMI_COLORSPACE_YUV422; + case DRM_COLOR_FORMAT_YCBCR420: + return HDMI_COLORSPACE_YUV420; + } +} + +/** + * drm_color_format_from_hdmi_colorspace - convert HDMI color format to DRM + * @fmt: the &enum hdmi_colorspace to convert + * + * Convert a given &enum hdmi_colorspace to an equivalent + * &enum drm_color_format. For non-representable values, + * %-EINVAL is returned. + * + * Returns: the corresponding &enum drm_color_format value, or %-EINVAL + */ +static inline enum drm_color_format __pure +drm_color_format_from_hdmi_colorspace(enum hdmi_colorspace fmt) +{ + switch (fmt) { + default: + return -EINVAL; + case HDMI_COLORSPACE_RGB: + return DRM_COLOR_FORMAT_RGB444; + case HDMI_COLORSPACE_YUV444: + return DRM_COLOR_FORMAT_YCBCR444; + case HDMI_COLORSPACE_YUV422: + return DRM_COLOR_FORMAT_YCBCR422; + case HDMI_COLORSPACE_YUV420: + return DRM_COLOR_FORMAT_YCBCR420; + } +} + /** * drm_for_each_connector_iter - connector_list iterator macro * @connector: &struct drm_connector pointer used as cursor -- 2.52.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9EF41C4452E for ; 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dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1769003178; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=8tbnRLxC7YN9OmZ6Ssd8CDhleEgMPvrSDskSel3YjYw=; b=EXDLm7PlBylZ09uoyc7VtUczgxLe8v4VUF/RlL0G6gkcy0DIwysXoug9F04WjlAu jAcKbhuh+DSpxEnf6TbKNYH7NhLXYBvKk8d6qfuN/I7mgFDy/NXi0v0cyFdA3SLsLTv HSGBIbHWZ5NC8YtwWzmo8ALBrv42lUa4vb3GV93s= Received: by mx.zohomail.com with SMTPS id 1769003176579352.97627818605895; Wed, 21 Jan 2026 05:46:16 -0800 (PST) From: Nicolas Frattaroli Date: Wed, 21 Jan 2026 14:45:29 +0100 Subject: [PATCH v6 03/21] drm: Add enum conversions between DRM_COLOR_FORMAT and HDMI_COLORSPACE MIME-Version: 1.0 Message-Id: <20260121-color-format-v6-3-7b81a771cd0b@collabora.com> References: <20260121-color-format-v6-0-7b81a771cd0b@collabora.com> In-Reply-To: <20260121-color-format-v6-0-7b81a771cd0b@collabora.com> To: Harry Wentland , Leo Li , Rodrigo Siqueira , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , Dmitry Baryshkov , Sascha Hauer , Rob Herring , Jonathan Corbet Cc: kernel@collabora.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-doc@vger.kernel.org, Nicolas Frattaroli , Marius Vlad X-Mailer: b4 0.14.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260121_054649_830220_B81A86D1 X-CRM114-Status: GOOD ( 11.66 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org While the two enums have similar values, they're not identical, and HDMI's enum is defined as per the HDMI standard. Add a simple conversion function from DRM to HDMI. Unexpected inputs aren't handled in any clever way, DRM_COLOR_FORMAT_AUTO and any other value that doesn't cleanly map to HDMI just gets returned as HDMI_COLORSPACE_RGB. Add a second conversion function that gets a DRM_COLOR_FORMAT from an HDMI_COLORSPACE as well. In this case, reserved HDMI values that can't be converted will result in an -EINVAL return value. Co-developed-by: Marius Vlad Signed-off-by: Marius Vlad Signed-off-by: Nicolas Frattaroli --- include/drm/drm_connector.h | 54 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index b5604dca728a..ffeb42f3b4a3 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -2612,6 +2612,60 @@ int drm_connector_attach_color_format_property(struct drm_connector *connector); const char *drm_get_color_format_name(enum drm_color_format color_fmt); +/** + * drm_color_format_to_hdmi_colorspace - convert DRM color format to HDMI + * @fmt: the &enum drm_color_format to convert + * + * Convert a given &enum drm_color_format to an equivalent + * &enum hdmi_colorspace. For non-representable values and + * %DRM_COLOR_FORMAT_AUTO, the value %HDMI_COLORSPACE_RGB is returned. + * + * Returns: the corresponding &enum hdmi_colorspace value + */ +static inline enum hdmi_colorspace __pure +drm_color_format_to_hdmi_colorspace(enum drm_color_format fmt) +{ + switch (fmt) { + default: + case DRM_COLOR_FORMAT_AUTO: + case DRM_COLOR_FORMAT_RGB444: + return HDMI_COLORSPACE_RGB; + case DRM_COLOR_FORMAT_YCBCR444: + return HDMI_COLORSPACE_YUV444; + case DRM_COLOR_FORMAT_YCBCR422: + return HDMI_COLORSPACE_YUV422; + case DRM_COLOR_FORMAT_YCBCR420: + return HDMI_COLORSPACE_YUV420; + } +} + +/** + * drm_color_format_from_hdmi_colorspace - convert HDMI color format to DRM + * @fmt: the &enum hdmi_colorspace to convert + * + * Convert a given &enum hdmi_colorspace to an equivalent + * &enum drm_color_format. For non-representable values, + * %-EINVAL is returned. + * + * Returns: the corresponding &enum drm_color_format value, or %-EINVAL + */ +static inline enum drm_color_format __pure +drm_color_format_from_hdmi_colorspace(enum hdmi_colorspace fmt) +{ + switch (fmt) { + default: + return -EINVAL; + case HDMI_COLORSPACE_RGB: + return DRM_COLOR_FORMAT_RGB444; + case HDMI_COLORSPACE_YUV444: + return DRM_COLOR_FORMAT_YCBCR444; + case HDMI_COLORSPACE_YUV422: + return DRM_COLOR_FORMAT_YCBCR422; + case HDMI_COLORSPACE_YUV420: + return DRM_COLOR_FORMAT_YCBCR420; + } +} + /** * drm_for_each_connector_iter - connector_list iterator macro * @connector: &struct drm_connector pointer used as cursor -- 2.52.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip