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 1BE46CD5BB5 for ; Fri, 22 May 2026 12:33:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5D37E10F5B0; Fri, 22 May 2026 12:33:21 +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="ahKiG3u8"; 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 2B7D710F5B8; Fri, 22 May 2026 12:33:18 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1779453188; cv=none; d=zohomail.com; s=zohoarc; b=F/lkO6r5U0DhE/3H1eqNFa8fgGQdxsebDWvUBowiKY9X/yyscynY8CJQSK9G17+bby5PPJmtmbzJu3ICx+ZhWUh7S0f9SjI+N8vPaJM8VqBWmWUwB24LF9tC/DDf3U/LdDCaz7bQ8KlN0/asH8w03bykB8q9IDaigeMYkLEuZ2o= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1779453188; 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=E8Lo2br7VH451pW8mbm3IAG619TpKWYG57DGcDu/ZNs=; b=X2IL4wPpdc3yBmPExhKTxBJEaVKLawlSKvhoFSk+hgqpuPGAvb+TeITVpWJHOkI0fWa/8Of0fztTKfrmF/+IaAX5b7hiqNyTW9EiHO4Jl2pfBtlsKCPyvkId2ufv0umX9M5pr3d8Q3xrHudqZI32zIbpNHUrCQT+MccWonWa90k= 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=1779453188; 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=E8Lo2br7VH451pW8mbm3IAG619TpKWYG57DGcDu/ZNs=; b=ahKiG3u8Dax7FvJR9oPzyttnytssci5R/kR8+hX5cSdjETuNZ3PZCpSqgIQYub08 5BEJihKhFMytUZnCW3LOr/S9g0aIyDNBhchqF55hdQ29tJFpGkMOMwGn+x9pMaSPe0c 9AatAXy199lZf7yyD/ey4mKYfmnqjU5Gkydbo+1s= Received: by mx.zohomail.com with SMTPS id 1779453186609808.6322459481415; Fri, 22 May 2026 05:33:06 -0700 (PDT) From: Nicolas Frattaroli Date: Fri, 22 May 2026 14:31:55 +0200 Subject: [PATCH v15 04/28] drm/connector: Let connectors have a say in their color format MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260522-color-format-v15-4-21fb136c9df2@collabora.com> References: <20260522-color-format-v15-0-21fb136c9df2@collabora.com> In-Reply-To: <20260522-color-format-v15-0-21fb136c9df2@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 , Shuah Khan , Daniel Stone 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, wayland-devel@lists.freedesktop.org, Nicolas Frattaroli , Dmitry Baryshkov X-Mailer: b4 0.15.2 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add a function to get the connector color format from a connector state, and a new function pointer in drm_connector_funcs to allow connectors to override what connector color format it returns. This is useful for the bridge chain recursive bus format selection code, which does not wish to implement connector implementation specific checks like whether it involves HDMI. Reviewed-by: Dmitry Baryshkov Reviewed-by: Daniel Stone Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/drm_connector.c | 16 ++++++++++++++++ include/drm/drm_connector.h | 12 ++++++++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index a0fca522f18f..41a5ab1e563e 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -3685,6 +3685,22 @@ void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode, } EXPORT_SYMBOL(drm_connector_oob_hotplug_event); +/** + * drm_connector_get_color_format - Return connector color format of @conn_state + * @conn_state: pointer to the &struct drm_connector_state to go check + * + */ +enum drm_connector_color_format +drm_connector_get_color_format(const struct drm_connector_state *conn_state) +{ + struct drm_connector *connector = conn_state->connector; + + if (connector->funcs->color_format) + return connector->funcs->color_format(conn_state); + + return conn_state->color_format; +} +EXPORT_SYMBOL(drm_connector_get_color_format); /** * DOC: Tile group diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 03e42c36175d..c9aad2bc8227 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1787,6 +1787,16 @@ struct drm_connector_funcs { * Allows connectors to create connector-specific debugfs files. */ void (*debugfs_init)(struct drm_connector *connector, struct dentry *root); + + /** + * @color_format: + * + * Allows connectors to return a connector color format other than + * @conn_state.color_format for purposes of e.g. display protocol + * specific helper logic having already mapped it to an output format. + */ + enum drm_connector_color_format (*color_format)( + const struct drm_connector_state *conn_state); }; /** @@ -2603,6 +2613,8 @@ drm_connector_is_unregistered(struct drm_connector *connector) void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode, enum drm_connector_status status); +enum drm_connector_color_format +drm_connector_get_color_format(const struct drm_connector_state *conn_state); const char *drm_get_connector_type_name(unsigned int connector_type); const char *drm_get_connector_status_name(enum drm_connector_status status); const char *drm_get_subpixel_order_name(enum subpixel_order order); -- 2.54.0