From nobody Mon Apr 6 11:51:43 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 1D4D738BF60 for ; Thu, 19 Mar 2026 12:29:38 +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=1773923380; cv=pass; b=AsX3wqiLTDWmU4UiHPLGNrdhts2KpAyzuiiEJ6OkdDB7tTFwB8v1iL8ZWZyvnlZE7Y4ITVVtx2eCXc5Xyr45gdRVpJxAp7wJupsHrsWWmctK+WBL67w3imieF3+ck86aypCFFeySl1ftxZmG1MVZ2EJrHbrFkAfI1FAFtBBaxMM= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773923380; c=relaxed/simple; bh=InXbcOngqCL9W1DQBerjuaReHbdSSOfDKKEbpDMSqSI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=DhyiRgYyenpSijYCvXjqJywoBKLYg2EkK52zTrsGLTCnHEh1bRHnGG6JmYuJR8jIq01SGkG34WpB+Ale6KmQ0i98zyX+EflAAvQuhQ0odY5ByNBSJwCFvt7khOfFcw+ja6nFgmKYMMP2DZI0e9+a7hLI1fBSf4io2H0GTKZ8caQ= 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=Sec0+l62; 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="Sec0+l62" ARC-Seal: i=1; a=rsa-sha256; t=1773923355; cv=none; d=zohomail.com; s=zohoarc; b=ZlhVSuRIUFXzhO+OA3Q2nQWOrAISGSWA4CEkaZUc61/Wc+k2IdJFECkRrJR3MV8PSBPAIckjJzfFXzMxiAKr0ykPzvC4exE23LEzlzQx415ldpMdirkvoOCT/2xqQr7C2AcoyAisjcFVO1qNgUCMOapdn+qDH+wtvcfvdk9kXlQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773923355; 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=qpZcXJJWu5iOgjXzRPAyH0cclB71wo/9lwDpopULu5Y=; b=U7Jahj902b+Ij+zW24yAD/URcsS3nw9LXrHPqEGIx4LslSBjsadD1a3WicIj1EsijuWJdBeiN0jcshVgIhHgeHM7us4S7H/FZ1TLX9fJ+5R0ZzeCG/GSiSJBJqvuZ8M97VvWSL695qUss3YR4AqatqTHB+cB9it79+MizAfQ3mc= 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=1773923355; 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=qpZcXJJWu5iOgjXzRPAyH0cclB71wo/9lwDpopULu5Y=; b=Sec0+l62sPID4K5edwDw0KfKO8Xfs1SCiezBpn3U0nxsyYUGvDuTMeaz9HOmvcCS O4Ae2wOHM1/Toc53bkg6BBBAsdudW/L06COaTvdt0Vz497+DRIyqYf9CCVSjlLszy/S gWDIXgNKvzb1MUYTJXLCoIHl5rQ6yHdHSqXPJW/M= Received: by mx.zohomail.com with SMTPS id 1773923353560846.6582348302521; Thu, 19 Mar 2026 05:29:13 -0700 (PDT) From: Nicolas Frattaroli Date: Thu, 19 Mar 2026 13:28:35 +0100 Subject: [PATCH v5 2/3] drm/connector: hdmi: Add support for 'link bpc' 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: <20260319-link-bpc-v5-2-5306cd04a708@collabora.com> References: <20260319-link-bpc-v5-0-5306cd04a708@collabora.com> In-Reply-To: <20260319-link-bpc-v5-0-5306cd04a708@collabora.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Harry Wentland , Leo Li , Rodrigo Siqueira , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , =?utf-8?q?Ville_Syrj=C3=A4l=C3=A4?= , Daniel Stone , Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, kernel@collabora.com, Nicolas Frattaroli X-Mailer: b4 0.14.3 Create and attach the 'link bpc' DRM property for every HDMI connector that's created through drmm_connector_hdmi_init. Then, set the connector state's link_bpc member in the HDMI atomic check state helper to the connector state's HDMI output bpc. Acked-by: Maxime Ripard Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 2 ++ drivers/gpu/drm/drm_connector.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/= drm/display/drm_hdmi_state_helper.c index a1d16762ac7a..40648574f5e5 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -865,6 +865,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_c= onnector *connector, struct drm_crtc *crtc =3D new_conn_state->crtc; struct drm_crtc_state *crtc_state; =20 + new_conn_state->link_bpc =3D new_conn_state->hdmi.output_bpc; + crtc_state =3D drm_atomic_get_crtc_state(state, crtc); if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connecto= r.c index 878e9db2c895..572894dad4bf 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -693,6 +693,10 @@ int drmm_connector_hdmi_init(struct drm_device *dev, drm_connector_attach_max_bpc_property(connector, 8, max_bpc); connector->max_bpc =3D max_bpc; =20 + ret =3D drm_connector_attach_link_bpc_property(connector, max_bpc); + if (ret) + return ret; + if (max_bpc > 8) drm_connector_attach_hdr_output_metadata_property(connector); =20 --=20 2.53.0