From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 955F981728 for ; Mon, 6 Jan 2025 15:56:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736179019; cv=none; b=ugAUTTb0cTTrHDJmd+PIg9/czO7k0Br7xZGFckCPSchBiJU884Y3F77ePTg0kop0wD3ByxCIB60GStBfS5frr0xC2cA1I8d7UL41Ix3ql2bXx9TcQpPKiEEkDKIShE0sbnNw1AwkIY9fV0QEnvEz/R+CVBvUY1QOMwp7SgrpEew= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736179019; c=relaxed/simple; bh=m4G4sp/GWSPNBk2U6hQREs4YdXlRNqrxfvcawNfVRKw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=eXhqfQbu4oUBrFX6kfpsW19ejtz+p0Iap8HI/fQvToJ/GH/pRli+wkCJKxd7n4ghIROEAyiRneAKtyUWQ8+ztHlJgESPlHS+/CeCT0QxrQXjXiDg+S1IgJCmc1GmL7n6qTP4mXWUzANX1tOqiUfKGX3osU6mGntuwPnwAB+gCCk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=pOVTWHMa; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="pOVTWHMa" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 109D2520; Mon, 6 Jan 2025 16:56:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1736178964; bh=m4G4sp/GWSPNBk2U6hQREs4YdXlRNqrxfvcawNfVRKw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=pOVTWHMae7VYOpCYkBMbUzkiqGAEKZWPLoCkEBCUJlNZ77Zd4O8jR34HcFsq+jytz JeifhstPX5yXIPbk/xhEZlUTFfL8RvOMri+TRXD4j4gWnsSN6TLmTyici9RIk88BGN vSvZu+vkNCbhdiA8dJfR+AeG+IKfGf+8+39i7VL0= Date: Mon, 6 Jan 2025 17:56:53 +0200 From: Laurent Pinchart To: Marek Vasut Cc: dri-devel@lists.freedesktop.org, Andrzej Hajda , David Airlie , Fabio Estevam , Jernej Skrabec , Jonas Karlman , Liu Ying , Maarten Lankhorst , Maxime Ripard , Neil Armstrong , Pengutronix Kernel Team , Robert Foss , Sascha Hauer , Shawn Guo , Simona Vetter , Stefan Agner , Thomas Zimmermann , imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v4 1/4] drm: bridge: dw_hdmi: Add flag to indicate output port is optional Message-ID: <20250106155653.GG10308@pendragon.ideasonboard.com> References: <20250105190659.99941-1-marex@denx.de> <20250105232219.GC21164@pendragon.ideasonboard.com> <20250106070514.GA5568@pendragon.ideasonboard.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On Mon, Jan 06, 2025 at 04:36:26PM +0100, Marek Vasut wrote: > On 1/6/25 8:05 AM, Laurent Pinchart wrote: > > On Mon, Jan 06, 2025 at 03:48:52AM +0100, Marek Vasut wrote: > >> On 1/6/25 12:22 AM, Laurent Pinchart wrote: > >>> Hi Marek, > >> > >> Hi, > >> > >>> Thank you for the patch. > >>> > >>> On Sun, Jan 05, 2025 at 08:06:03PM +0100, Marek Vasut wrote: > >>>> Add a flag meant purely to work around broken i.MX8MP DTs which enable > >>>> HDMI but do not contain the HDMI connector node. This flag allows such > >>>> DTs to work by creating the connector in the HDMI bridge driver. Do not > >>>> use this flag, do not proliferate this flag, please fix your DTs and add > >>>> the connector node this way: > >>>> > >>>> ``` > >>>> / { > >>>> hdmi-connector { > >>>> compatible = "hdmi-connector"; > >>>> label = "FIXME-Board-Specific-Connector-Label"; // Modify this > >>>> type = "a"; > >>>> > >>>> port { > >>>> hdmi_connector_in: endpoint { > >>>> remote-endpoint = <&hdmi_tx_out>; > >>>> }; > >>>> }; > >>>> }; > >>>> }; > >>>> > >>>> &hdmi_tx { > >>>> ... > >>>> > >>>> ports { > >>>> port@1 { > >>>> hdmi_tx_out: endpoint { > >>>> remote-endpoint = <&hdmi_connector_in>; > >>>> }; > >>>> }; > >>>> }; > >>>> }; > >>>> ``` > >>> > >>> Are there any in-tree DT sources that use the old bindings ? > >> > >> See > >> https://lore.kernel.org/dri-devel/AM7PR04MB704688150ACD5D209290246A98092@AM7PR04MB7046.eurprd04.prod.outlook.com/ > > > > Maybe I'm missing something obvious, but where is the patch series that > > moves the DT sources mentioned in that mail thread to the new bindings ? > > Since this optional flag is added, that DT update series can be done > separately. It can, but I'd like to see it merged in the same time frame as this series, so it should be posted (and reviewed and tested). -- Regards, Laurent Pinchart