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 0D16E1DA23; Sun, 7 Sep 2025 18:52:12 +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=1757271134; cv=pass; b=C9c+rwRkFqoQ4T54C7OsNRrXH34MRcXo6YeGptyrNFuVd0vxe4B+G7n5U5vK93XNtiE6+RpQOVWQ0WCVxFZrvRXewJGBGPZPiv70wDyq4DsrV0MuZYnrIfy0m4JMIVZYNn41T1J7LwfU/DZtAQ9xf2atth7YQegseBCn6rQ63kQ= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757271134; c=relaxed/simple; bh=xKu9bhdQLVvlLdhnrRh59Fzz3YKv6AL6WdbOJd6ryDA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=EsKuQcl6H0hE566Z2/cEPP13zzf7dNmOBu6fsn4FB8Jteyuzu3V37z0O2uPUhjedB6yiRZYCfZd/8fgrlQHmLn1SkRZk4bTEyx2mNlvEl1elvTStJhhMzAwn959Pn+7DPCsXA69X8rGlXmPyQJ3XszoyRGhsrLqzpH6hxDq7dQg= 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=dmitry.osipenko@collabora.com header.b=MixN8Wji; 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=dmitry.osipenko@collabora.com header.b="MixN8Wji" ARC-Seal: i=1; a=rsa-sha256; t=1757271105; cv=none; d=zohomail.com; s=zohoarc; b=LVWD3SHQtC7SoFVKBuDY1aLxv8HKkg0+CDoXD4XUC871+2/7VKD2LmFHPpaqSCIf/WyCxy1NGFdIvcoWP2+SD78RgWIp0kJ2Nd+EKYDx7bRBPBkQ7Ut9vTmURoZDfRgWDaT39IvQ5iyvJqxPqp8elP1U1J963ErE8MgFSxlG6Dw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1757271105; 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=72zMzp9EQsVogTu/OAl9/EdJSst3NLpKe0M5q7uE32E=; b=PuMd8rXbS8zSUtqHwxMTyAsTwByeOGoqvHa5YcSoh8/GQUqYR0wrzkYWNwF6pyfZH7gv0HKE5f9l0HhR6IjO5cKO1FwmJerR/MUxVXv9B0pdBZsrSykDKd/G6Ueodjs9e9AVJ0++ClYYwonNJ/+3T0IETObJNj7ijvQr5ZhIYJ8= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=dmitry.osipenko@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1757271105; s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com; h=Message-ID:Date:Date:MIME-Version:Subject:Subject:To:To:Cc:Cc:References:From:From:In-Reply-To:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=72zMzp9EQsVogTu/OAl9/EdJSst3NLpKe0M5q7uE32E=; b=MixN8WjiNrR9K4gGzWj3HwYdmrd1jvqQnRBQVeQbgDtl40BqhCv4myWoJb2rCLnQ 48ZoKFPQWXO49DDELuCEtRMnc4+1WMWLWPL/623dv5bP93mwyqid+sYTqJQH+fiYNx/ S8ta4TgRapiWvdwhI7vucEgyQJMIhRLpFZns1NNU= Received: by mx.zohomail.com with SMTPS id 1757271103703981.538669071521; Sun, 7 Sep 2025 11:51:43 -0700 (PDT) Message-ID: Date: Sun, 7 Sep 2025 21:51:39 +0300 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/1] Enable HDMI Receiver on NanoPC-T6 To: Marcin Juszkiewicz , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org References: Content-Language: en-US From: Dmitry Osipenko In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ZohoMailClient: External On 9/5/25 14:02, Marcin Juszkiewicz wrote: > For quite a while I had this patch in my local tree but never made it > work. Kernel generates the following messages all the time: > > fdee0000.hdmi_receiver: hdmirx_wait_signal_lock: signal not lock, tmds_clk_ratio:0 > fdee0000.hdmi_receiver: hdmirx_wait_signal_lock: mu_st:0x2, scdc_st:0x0, dma_st10:0x10 > > "v4l2-ctrl --all" reports that HDMI In is detected, /dev/video[0-4] > exist. > > I tried two signal sources: > - AMD Radeon WX2100 (via passive DisplayPort -> HDMI adapter) > - AMD Radeon RX6700XT (HDMI port) > > Same situation with both - kernel messages as above on RK3588 system, no > connected monitor on host side. > > Usually I used MPlayer or MPV to check v4l2 devices but here it fails > too: > > $ mpv av://v4l2:/dev/video3 > [ffmpeg/demuxer] video4linux2,v4l2: Not a video capture device. > [lavf] avformat_open_input() failed > Failed to recognize file format. > Exiting... (Errors when loading file) > > > Checked SBC schematics again and HDMIIRX_DET_L line is GPIO1_D5 like it > my patch. > > What I go wrong? Hi, your trouble with HDMI capture sounds very similar to [1]. Make sure you're using opensource ATF and check whether capture works using v4l2-ctl tool, see replies to [1]. Post a full kernel driver log if problem will persist. [1] https://lore.kernel.org/linux-media/c71a3f79-71f3-4fd2-a509-c42b24636a2f@timsurber.de/ -- Best regards, Dmitry