From nobody Thu Mar 19 03:43:32 2026 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8C4B630E0C0; Mon, 16 Feb 2026 13:02:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771246978; cv=pass; b=E9eEV3DgjOwpF1Bb8ZnSdJHReOmMwPlQhhuv3CUPdN3C+jZgNyoez0Iy48e5hG7yOzcfN6dhs9V2ofL25FVhr09AEdQEaaQMlY8frPUYneztLBl6NSnzdaqB8IMMEOB2hr6zW3/hUs+bMi/6CRlQJbT8cqBDo+qZ+0OpkPe/BX0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771246978; c=relaxed/simple; bh=HVo/gqYIjhPprngYgHjDXS6TY/6XHs3wncu5CKB3chk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=DZPtr4JNe5YGdfxJ2+0iw9W4YX+KDAet314NIneRL+fdA9gnlKjQBi0r5/8Jxj4xgnvts5bLOOQm49Ts+H5oIbWwU8aGOw3uZScOxwy2tnSmHPKwNuB89lv2MAZq8nU9MrXsX80fTVQRRc+VogTwCufsQA8XTqoTH0MfQ06J1pQ= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=SLYyzIpp; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="SLYyzIpp" ARC-Seal: i=1; a=rsa-sha256; t=1771246937; cv=none; d=zohomail.com; s=zohoarc; b=SjwFdSxGKe/Yd9BHGQsS2tFZh8sCy5jdJJfJk+Ceppp7nHriZgrhek6XQ4sm3y2GywsLm3xI9LrxjmT84T+EG6S6Dhd7Bvt1yyHF+LUNcuJLSxoOffoVLOVQ41TuWfdAgZ5XdI+guGlf0NQjaGyHV+sdFhTew01rYxgLBj4zTFY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1771246937; 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=XJQUiMBk6drlEqyVcvn5t6omt1siA1VhQ5FW6igxkp4=; b=eVKZtrJF96IBY16fn+j3BvwdMnISN+2fju8tz43AAaPku9jYvp5E2z7c9me9YbwdEvdCzkTIaHi/ahzx6u6isF43V10hyRu3dFiAsvmoubfvHFj9WQkbAa562qd7Y4bjmuSw+UVzPPPjQvNaX5iTIlCK/AnPF+XLY4TeqZFrl0k= 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=1771246937; 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=XJQUiMBk6drlEqyVcvn5t6omt1siA1VhQ5FW6igxkp4=; b=SLYyzIpp/sDAePPdKa/wbGGQOZM9CfSx/pvjyQIgBSoN8Pxl3DqRdNaqJGUV/DNK Oihkj9X3YL8u24M5muBRHoLG6BheY3XHc86QPiVrI1DSNt6F0SwvOfLALVXVqmeX+Zq zZhN/9nItYLeiK66SX9pkaNyNMjk9eC6Qa2EgHFw= Received: by mx.zohomail.com with SMTPS id 1771246935363351.37459512313205; Mon, 16 Feb 2026 05:02:15 -0800 (PST) From: Nicolas Frattaroli Date: Mon, 16 Feb 2026 14:01:19 +0100 Subject: [PATCH v8 05/20] drm/display: hdmi-state-helper: Act on color format DRM property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260216-color-format-v8-5-5722ce175dd5@collabora.com> References: <20260216-color-format-v8-0-5722ce175dd5@collabora.com> In-Reply-To: <20260216-color-format-v8-0-5722ce175dd5@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 X-Mailer: b4 0.14.3 With the introduction of the "color format" DRM property, which allows userspace to request a specific color format, the HDMI state helper should implement this. Implement it by translating the requested drm_color_format_enum to an hdmi_colorspace enum value. Auto is translated to RGB, and a fallback to YUV420 is only performed if the original color format was auto. Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 28 +++++++++++++++++++++= ++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/= drm/display/drm_hdmi_state_helper.c index a1d16762ac7a..3ba752200984 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -649,10 +649,34 @@ hdmi_compute_config(const struct drm_connector *conne= ctor, unsigned int max_bpc =3D clamp_t(unsigned int, conn_state->max_bpc, 8, connector->max_bpc); + enum hdmi_colorspace fmt; int ret; =20 - ret =3D hdmi_compute_format_bpc(connector, conn_state, mode, max_bpc, - HDMI_COLORSPACE_RGB); + switch (conn_state->color_format) { + case DRM_COLOR_FORMAT_ENUM_AUTO: + case DRM_COLOR_FORMAT_ENUM_RGB444: + fmt =3D HDMI_COLORSPACE_RGB; + break; + case DRM_COLOR_FORMAT_ENUM_YCBCR444: + fmt =3D HDMI_COLORSPACE_YUV444; + break; + case DRM_COLOR_FORMAT_ENUM_YCBCR422: + fmt =3D HDMI_COLORSPACE_YUV422; + break; + case DRM_COLOR_FORMAT_ENUM_YCBCR420: + fmt =3D HDMI_COLORSPACE_YUV420; + break; + default: + drm_dbg_kms(connector->dev, "HDMI does not support color format '%s'.\n", + drm_get_color_format_name(conn_state->color_format)); + return -EINVAL; + } + + ret =3D hdmi_compute_format_bpc(connector, conn_state, mode, max_bpc, fmt= ); + + if (conn_state->color_format !=3D DRM_COLOR_FORMAT_ENUM_AUTO) + return ret; + if (ret) { if (connector->ycbcr_420_allowed) { ret =3D hdmi_compute_format_bpc(connector, conn_state, --=20 2.53.0