From nobody Mon Feb 9 08:56:00 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 68B8B2550AF; Wed, 21 Jan 2026 13:46:51 +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=1769003213; cv=pass; b=OmowHRIlC2NYuiecBjnG3nyAR62SSPfKInXnIk310K2BdheWDLkxyxRLHk4TuwoHDtJFGY1JI7K73gGPEHgQ2DKxm+NUbXeisGijxfvQOT+CuXaTqHGC1kSXayDBiA1Hcj5dcNuuEkrzttilcSzwEPWrrrIjDC66jUDIvARYwFw= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769003213; c=relaxed/simple; bh=2BUplYvF79KzUy7mZuRdoS54XZ0HDvVGZK1XB12WkHU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YSIHjj13PfxUCITUpU8cZjVTL5cFsTJxT8ba4hQyWVGetnMDNG6YwFQ4Nr9DVSlDfYrY2URwyJ5y8S1YIUom0Jplm+dfnl3gMhRMIWN/LbbKmaOArA0dC7NmV2GSlYFycaYDaFgBF7XtQ6KWN1wgp+d1ZBBEJOjOdwU73PlxiDs= 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=ZcfaTRN6; 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="ZcfaTRN6" ARC-Seal: i=1; a=rsa-sha256; t=1769003161; cv=none; d=zohomail.com; s=zohoarc; b=jlYHFWx2P3Kz6LTZ79x+6kdqLvari7VcC47ur0DqSG79+KQE/JW7gpF86NvCk+EWhTvpAVE6XE1n1dCJfJhS8ZIoKEFMouaAriJcpckoRdZK8M40ecIoWblvFOiDJWVS8E8R6QBJhVxv5iKtSpG1c2JMjkOkQ94IMJ4u8sRJk/U= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1769003161; 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=QLGL7sAGGjAc4J4kRVufIDJ5+o6RGlXVLshIz0+jGpw=; b=S56vRgXoVMgJJnBVD3npkriP2aBkcgj91rL3N8NMLkyC3U8SAdaiPHisuSt9zjqAuWsbQLXt2hb6h+V0CLn/+cGlZRN4oT92X+ivBHmWxjs5jigtXQe3LiMIQpRew62ANnOHNEpiOjohskdgwuSl0IutAb5L2xJUZQnDj5m8fpg= 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=1769003160; 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=QLGL7sAGGjAc4J4kRVufIDJ5+o6RGlXVLshIz0+jGpw=; b=ZcfaTRN6WerfLB+GnZqROxbI2m562Gzxo1kyzDco1GRnbupQvcdDUh9qL6n8Wxuz jx7FowaaGR6aY36KvntN5TbXi3zv4VVFtGoGtGMU0DTA9u7d0uFVrvfp5BMqivsErmZ 16WHLMAhNk+mu7JLRAxd/u5RLv6/yGT08dQhGAD8= Received: by mx.zohomail.com with SMTPS id 176900315953349.19319125732909; Wed, 21 Jan 2026 05:45:59 -0800 (PST) From: Nicolas Frattaroli Date: Wed, 21 Jan 2026 14:45:27 +0100 Subject: [PATCH v6 01/21] drm/amd/display: Remove unnecessary SIGNAL_TYPE_HDMI_TYPE_A check 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-v6-1-7b81a771cd0b@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 , Werner Sembach , Andri Yngvason X-Mailer: b4 0.14.3 From: Werner Sembach Remove unnecessary SIGNAL_TYPE_HDMI_TYPE_A check that was performed in the drm_mode_is_420_only() case, but not in the drm_mode_is_420_also() && force_yuv420_output case. Without further knowledge if YCbCr 4:2:0 is supported outside of HDMI, there is no reason to use RGB when the display reports drm_mode_is_420_only() even on a non HDMI connection. This patch also moves both checks in the same if-case. This eliminates an extra else-if-case. Signed-off-by: Werner Sembach Signed-off-by: Andri Yngvason Tested-by: Andri Yngvason Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gp= u/drm/amd/display/amdgpu_dm/amdgpu_dm.c index cb13a2b0de62..4a2491a66fdd 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6699,12 +6699,9 @@ static void fill_stream_properties_from_drm_display_= mode( timing_out->v_border_top =3D 0; timing_out->v_border_bottom =3D 0; /* TODO: un-hardcode */ - if (drm_mode_is_420_only(info, mode_in) - && stream->signal =3D=3D SIGNAL_TYPE_HDMI_TYPE_A) - timing_out->pixel_encoding =3D PIXEL_ENCODING_YCBCR420; - else if (drm_mode_is_420_also(info, mode_in) - && aconnector - && aconnector->force_yuv420_output) + if (drm_mode_is_420_only(info, mode_in) || + (aconnector && aconnector->force_yuv420_output && + drm_mode_is_420_also(info, mode_in))) timing_out->pixel_encoding =3D PIXEL_ENCODING_YCBCR420; else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR4= 22) && aconnector --=20 2.52.0