From nobody Mon Feb 9 12:09:11 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 B89973D4106; Wed, 21 Jan 2026 13:47:15 +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=1769003237; cv=pass; b=psKN7i6Ea2mI/O9PZi/ROawI94nQT3ksmnAfWwGiDPARmPqF3gmwLSp1RskvleUbWuRB1HPBYLB1FdKVS9M++MYBLrCk5FDzEnrZhht56A9a0Fzs393wH+wNuNYEG2jgeTvDlfkjoQFfjrhpMMNyQjjV/G6/PSMLGZfBEOFcyus= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769003237; c=relaxed/simple; bh=o3N5tcYGKoIArMIpmw2JDc3JL0RxRGbrrhWm1f7+3Fc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cR0INlVwhUIkQf1Ger1Z8vDO57Ni5JVmG18BxsPWdUYUqHFrBiW8ltvShn6jAW8J43Vhz9975PYPQO7nMuC49HGd4hUMoOQTvFkujSKQvtgaQmJWXgXaJJpvDopno4S44WdjO0ojdfaalp9RdY3Os47sSYlDut/5FILS4o8tHCo= 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=PEODl+IT; 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="PEODl+IT" ARC-Seal: i=1; a=rsa-sha256; t=1769003195; cv=none; d=zohomail.com; s=zohoarc; b=QrIkvXjY2DTWhmA5EyZ+VZyphcWkLLrdMBwFscvVw6G9Rn313eZZ7Y2smyAUujBR6iU6FxfHjDU4PrMOV+MCpOCk4vsmXUZUqMgwzCK4ifASRwKWY2k5CEYIOUxap59GiOj36pBbr+Ca8lir/KEZobt5zviH07LeP8XtmT2OMNE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1769003195; 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=rvJgPMT+HU5WR06OrKvq+eql2T6omfgWB+OE+x/UWsw=; b=nowNrHCKZoM2GXi37P3HHv6tfqy5pnyrADbEJqbjXJQK6SU2TShVwqaUuREm2Ya23ICjz/J0pIqfjw/8X42utrk/nLzz54isZBn06rPCsifikGVoK5XAVmG4Lay/vYw0inyeC9l8CjMUXfK3XacqMqDOGAZEShupoK1w1LySfBM= 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=1769003194; 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=rvJgPMT+HU5WR06OrKvq+eql2T6omfgWB+OE+x/UWsw=; b=PEODl+ITwKP6GlpLs9KULhubv61COnr4rsvAnEtSJ9A6w7WazZ1k+f44XwU3VMjb UTLI5L2C3SheqRh0V96GIw7BpH9Y2M5jyucR6zvZOLn7MhKxKr18Iw1BB1pBFTxbC/6 Hri6EUJGtqNA5hauWpzVIbDsAjWKuLiokHLgNYWY= Received: by mx.zohomail.com with SMTPS id 1769003192738497.97478706047036; Wed, 21 Jan 2026 05:46:32 -0800 (PST) From: Nicolas Frattaroli Date: Wed, 21 Jan 2026 14:45:31 +0100 Subject: [PATCH v6 05/21] 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: <20260121-color-format-v6-5-7b81a771cd0b@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 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 checking whether the property is set and set to something other than auto. If so, pass the requested color format, and otherwise set RGB. Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/= drm/display/drm_hdmi_state_helper.c index a1d16762ac7a..1ea3b9c93aa5 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -649,11 +649,21 @@ 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 hdmi_colorspace =3D + drm_color_format_to_hdmi_colorspace(conn_state->color_format); int ret; =20 ret =3D hdmi_compute_format_bpc(connector, conn_state, mode, max_bpc, - HDMI_COLORSPACE_RGB); + hdmi_colorspace); if (ret) { + /* If a color format was explicitly requested, don't fall back */ + if (conn_state->color_format) { + drm_dbg_kms(connector->dev, + "Explicitly set color format '%s' doesn't work.\n", + drm_get_color_format_name(conn_state->color_format)); + return ret; + } + if (connector->ycbcr_420_allowed) { ret =3D hdmi_compute_format_bpc(connector, conn_state, mode, max_bpc, --=20 2.52.0