From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 35228F3D61E for ; Mon, 30 Mar 2026 08:33:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8836F10E585; Mon, 30 Mar 2026 08:33:49 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="I847uVWR"; dkim-atps=neutral Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) by gabe.freedesktop.org (Postfix) with ESMTPS id C752810E582 for ; Mon, 30 Mar 2026 08:33:46 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1774859613; cv=none; d=zohomail.com; s=zohoarc; b=G67CFC/fZxIhMnI1JBF8ku7caUmaH5gN6/1Yf8KuG9wUqIgpBfsIwOIfEG/wtqiJJUZZJ3sC2mEF7SJYMFGdl6yV3wN/l9vJFN5l/f+Ey0L6CbaE9tpHbGSx8MdEpu/gnaau/fP4ASDtbh/wHcVy3t1dOvHRpMn2cslcVDekv2E= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1774859613; 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=aU6Hkzh2ZGMxnXb53gyh1Js8KrUAKoWYrd8TXgFTFIA=; b=AttcPcpFotZM8uizTBoIE8OAswyDAehLe1MhMD9TSBhTHhd3DzfoxlhkQLXfEHQUnPepwIrz/zgYz6O5RSDaqIO4mCTAa2lRkqneWvwPj2hBoOwmNV06n/fITDOs0St3DKX8nhrfW/y5WBKqxDEhLFjR13uBbJ6GgdlPR6r4Su4= 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=1774859613; 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=aU6Hkzh2ZGMxnXb53gyh1Js8KrUAKoWYrd8TXgFTFIA=; b=I847uVWRN8mccEOB+4RvXfePx2feCM3d3wM1JsYcvLw5ZKPeOG8Ltbxg+3ojXKCN +ZrHfRHWT7/S8jVbgmhFfMd1ZoicxSAvWNmZsOsUMkttsEFuoOQl8/CL06EOT3K5qP9 lhO+YhgDXJjbr2mRRsg577oiGsBqP4t0Zqic0rGY= Received: by mx.zohomail.com with SMTPS id 1774859611665808.5760822952676; Mon, 30 Mar 2026 01:33:31 -0700 (PDT) From: Nicolas Frattaroli Date: Mon, 30 Mar 2026 10:33:10 +0200 Subject: [PATCH v6 2/2] drm/connector: hdmi: Add support for 'link bpc' property MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260330-link-bpc-v6-2-ff124af93e48@collabora.com> References: <20260330-link-bpc-v6-0-ff124af93e48@collabora.com> In-Reply-To: <20260330-link-bpc-v6-0-ff124af93e48@collabora.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , =?utf-8?q?Ville_Syrj=C3=A4l=C3=A4?= , Daniel Stone , Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Nicolas Frattaroli X-Mailer: b4 0.15.1 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 9f3b696aceeb..b670bcdbd3c6 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -887,6 +887,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_crtc *crtc = new_conn_state->crtc; struct drm_crtc_state *crtc_state; + new_conn_state->link_bpc = new_conn_state->hdmi.output_bpc; + crtc_state = 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_connector.c index 85557106218b..2a2e56bf062d 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 = max_bpc; + ret = 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); -- 2.53.0