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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=1764363981; 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=IBxMWqX4+1NiMuBr6BGqM8VA6p9l+VBzuvI2JeWQJUk=; b=KDKeBn+2oZerSX3QOpV37D79KcKpgD5NU/avAqmIfHn26P43sELtFMjA3PIbGItM oIF7jte8lXsA25VmsfvHpV2uKlWgnD1atDLKO+YR51bkC9N1NHmIRUclkz08CqWLEft 8DuabFfqAjcDNl6/1TXR7Sa1Yqtf1AFsv+/UCJJ8= Received: by mx.zohomail.com with SMTPS id 1764363979976684.7501352747894; Fri, 28 Nov 2025 13:06:19 -0800 (PST) From: Nicolas Frattaroli Date: Fri, 28 Nov 2025 22:05:39 +0100 Subject: [PATCH v5 03/17] drm: Add enum conversion from DRM_COLOR_FORMAT to HDMI_COLORSPACE MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251128-color-format-v5-3-63e82f1db1e1@collabora.com> References: <20251128-color-format-v5-0-63e82f1db1e1@collabora.com> In-Reply-To: <20251128-color-format-v5-0-63e82f1db1e1@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 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, 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-20251128_130654_187087_245DAA9F X-CRM114-Status: GOOD ( 10.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Marius Vlad 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. 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. Signed-off-by: Marius Vlad Signed-off-by: Nicolas Frattaroli --- include/drm/drm_connector.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 38968a557b82..cf556f0e5731 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -2567,6 +2567,33 @@ 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_for_each_connector_iter - connector_list iterator macro * @connector: &struct drm_connector pointer used as cursor -- 2.52.0