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 97C2F37996C for ; Fri, 8 May 2026 14:34:48 +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=1778250890; cv=pass; b=dqqMuy2wbDD6VTAICKbNWml7a8th3UomsM7y29w0Ok74jqWm0xW8xMar0bB+A7khwKt7CTKEcOi+1Nyn3vtH8IpFa7xq5PFsKf7bC0CkNbIG4chIiJDAG+r9Gt2q8QY5QsM/2wMpAflwp6TDFS5uro8zvU5trMkIja11HhTs+D8= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250890; c=relaxed/simple; bh=7j+Gb7aKDXlumPnjtMxKagbMOHjUg10As+Y7EgDIEFw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ih3kQ800CHw8y/btz7yL5yX55Ti+w+UR7PiToJn1IETTUvIBsI0ysa5QnEbw3xJu/fNQXYv5lHJOvaTyDIFCl2Z+rQmJRVm+4c2ibXsa2/dBNfbuWXkFeSL4Zn0Eylr2Jo4qWPuaC+DFKo1kwrU722gZRaZQJDylNYIGgD3FeFQ= 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=D+LM6dot; 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="D+LM6dot" ARC-Seal: i=1; a=rsa-sha256; t=1778250863; cv=none; d=zohomail.com; s=zohoarc; b=CnabNJEtr6eCnmWKcZbDnkjLV/Cfo2uZBzvWp9vaS3xnZu7fDxs+lVPb2mDcb7XCXCmf0eqVhSzAc67AuZ/rDWIshpJ70Mn1KphMMkC7s8gz4RbJRo9klbY7xsze5y6IXWCdjzMx71sODezlR7mb4YQTLSm7uRgzhos02mQfplY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1778250863; 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=UzweqPYXG/kNARl3JTSJmCAH2zJtQI9VMfU1tdfVnOQ=; b=lZ4bxf2IWgXIEDLbSYaNO5X3qGgWQL8h7F09X0qjbgKOVX9p6sWSh+s/faS0hPQ7TPa7lTV7jTnxH4Pq14fz2AXGaR9J29qdv7bTNfJFcUdZyLYTfzby3XYY7YnqgshonSnEhbuTt8mjQNg3Gz1BIRwoefHMYjqOF0bKTiNmOro= 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=1778250862; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Content-Type:Message-Id:Reply-To; bh=UzweqPYXG/kNARl3JTSJmCAH2zJtQI9VMfU1tdfVnOQ=; b=D+LM6dotZTOnrZVp7DDDDYJY/2uYVdvWhUrOEjlQELaaYoznZWkuxJttXgR7540/ U6W+wT/CeErkMHpDNKwteodhxp6KBDuNmEshMdMSquuwTk/jOCnpAC1+xnz+XsnQnbx Y5xTP5ke7+kmIg6K5E1lgCTF3rY5pN6LTj/HDKd4= Received: by mx.zohomail.com with SMTPS id 1778250861133200.60037958313694; Fri, 8 May 2026 07:34:21 -0700 (PDT) From: Nicolas Frattaroli To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/2] Add SCDC information to connector debugfs Date: Fri, 08 May 2026 16:34:16 +0200 Message-ID: In-Reply-To: <20260415-scdc-link-health-v1-0-8e731e88eaf0@collabora.com> References: <20260415-scdc-link-health-v1-0-8e731e88eaf0@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" On Wednesday, 15 April 2026 17:56:41 Central European Summer Time Nicolas Frattaroli wrote: > HDMI uses the DDC I2C bus for communicating various bits of link status > out of band with the actual HDMI video signal. This information can be > useful for debugging issues like questionable cables sabotaged by feline > teeth, Enthusiast Grade cables made of cow fencing wire, and other such > problems that ruin one's media viewing plans. > > Consequently, this series exposes various bits of pertinent information > from the SCDC protocol in an HDMI connector's debugfs. To continually > poll the link status, userspace can poll the debugfs file. > > Signed-off-by: Nicolas Frattaroli > --- > Nicolas Frattaroli (2): > drm/scdc-helper: Add scdc_status debugfs entry > drm/display: bridge_connector: init scdc debugfs for HDMI > > drivers/gpu/drm/display/drm_bridge_connector.c | 4 + > drivers/gpu/drm/display/drm_scdc_helper.c | 229 +++++++++++++++++++++++++ > include/drm/display/drm_scdc_helper.h | 56 ++++++ > 3 files changed, 289 insertions(+) > --- > base-commit: 4c59525db84aca677fd9f052e662912ad9d88448 > change-id: 20260413-scdc-link-health-89326013d96c > > Best regards, > -- > Nicolas Frattaroli > > Is anyone interested in picking this up for review? It has been over three weeks with no response so far, and I'm getting worried this will just be forgotten about. Thanks, Nicolas Frattaroli