From mboxrd@z Thu Jan 1 00:00:00 1970 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 EC0F139182F; Thu, 23 Apr 2026 19:06:09 +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=1776971171; cv=pass; b=NqJ1n7zNKKTdJt+ahVKuBBZDgZv1tvDXZAHD1nUn8Sr/oEnuphRJHkSCs1PRHEBx5JNmdZ+s9jkPjM3cQu1Lr1PMYHyPXd2B8mQJk9Nd9cyIOFFzXsf6eJ+lGatlyXg/OoDeUWZNgk+4spOKCMaHgH6UFrcxXpJM4S4uqpSwjTU= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776971171; c=relaxed/simple; bh=3x10zUXCouHz5cyW3fvz9/fCcnmxwacS2no/kjxq2bA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LiAWurkpqwPya6YWJg85hPspPifspyNeE25ev9TdCHNtvv3BZMLS4CiM0iZ4stQ1u6ZX12mreOAZE5LlFL7EiP0b1LfDCLJpJVoInvLZ/m/CXG7AY0aJk+O4nGshQoBXzRIIFweEcG7hSs0T5xxnRfyTugSTLln5Vrds5mhtWow= 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=R732dx7u; 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="R732dx7u" ARC-Seal: i=1; a=rsa-sha256; t=1776971126; cv=none; d=zohomail.com; s=zohoarc; b=luxMYwlJapgNpSTWalXuwaUSLXCZE5rLhijiTaLRDgGTAwWuRzVNKufoheglGh0wue2yB5G/Nb/SQiGQscpPWhSelOHwwZL88GKpkrbec+7bRUyIL6RnQs8TpOSqxylsrojzkwKyYDNTLA0gv31OOSlWaInjki4woYIqL4zZRcA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1776971126; 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=L2O+6hWqat3vHvvpJQfgGLUYsjv/ArmH9e/e7Vz/G5I=; b=QU7lTUagdleL1ZOonrTMhNcwC1fsYzE8L7ZENxDEQTqMBP20qiMYaBDAMv3WnrqycmATeyk2ue4OKqCOe8eJEcCvQEe4WuI+1DG/svnJInbhlh4y6g87VxSH6Irax2eVDxRcQBTi9j8LrZI4b0bKHekytLxbs/Gl3W97sJt0XmA= 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=1776971126; 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=L2O+6hWqat3vHvvpJQfgGLUYsjv/ArmH9e/e7Vz/G5I=; b=R732dx7uxGMhFECtEbtLe0Z3P/zJV7NuZc9r+To3TgEUQAEFt6lVWLdSkcuQ/yQ/ 2wbUZ3zkrGULHLplaF5krHkdrPMalHMBvqwrVdntiiw88Jr2Ir3u3/K7dm6gmYIzAtU Wb4bm0pswOWUqyxV1MB3RmR2hYBLwcqPy1e0HkvY= Received: by mx.zohomail.com with SMTPS id 1776971125012965.5568652865181; Thu, 23 Apr 2026 12:05:25 -0700 (PDT) From: Nicolas Frattaroli Date: Thu, 23 Apr 2026 21:03:35 +0200 Subject: [PATCH v14 12/28] drm/i915/dp: Add YCBCR444 handling for sink formats Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260423-color-format-v14-12-449a419ccbd4@collabora.com> References: <20260423-color-format-v14-0-449a419ccbd4@collabora.com> In-Reply-To: <20260423-color-format-v14-0-449a419ccbd4@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 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 X-Mailer: b4 0.15.2 In anticipation of userspace being able to explicitly select supported sink formats, add handling of the YCBCR444 sink format. The AUTO path does not choose this format, but with explicit format selection added to the driver, it becomes a possibility. Check for both source and sink support of YCBCR444 in intel_dp_sink_format_valid. Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/i915/display/intel_dp.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 35b8fb5740aa..299b91d262c3 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1344,6 +1344,20 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector, 8, sink_format, true); } +static bool +intel_dp_can_ycbcr444(struct intel_dp *intel_dp) +{ + if (source_can_output(intel_dp, INTEL_OUTPUT_FORMAT_YCBCR444) && + !drm_dp_is_branch(intel_dp->dpcd)) + return true; + + if (source_can_output(intel_dp, INTEL_OUTPUT_FORMAT_RGB) && + dfp_can_convert_from_rgb(intel_dp, INTEL_OUTPUT_FORMAT_YCBCR444)) + return true; + + return false; +} + static enum drm_mode_status intel_dp_sink_format_valid(struct intel_connector *connector, const struct drm_display_mode *mode, @@ -1364,6 +1378,13 @@ intel_dp_sink_format_valid(struct intel_connector *connector, return MODE_OK; case INTEL_OUTPUT_FORMAT_RGB: + return MODE_OK; + case INTEL_OUTPUT_FORMAT_YCBCR444: + if (!(info->color_formats & BIT(DRM_OUTPUT_COLOR_FORMAT_YCBCR444))) + return MODE_BAD; + if (!intel_dp_can_ycbcr444(intel_dp)) + return MODE_BAD; + return MODE_OK; default: MISSING_CASE(sink_format); -- 2.53.0