linux-kernel - Re: [RFC 2/2] drm/bridge: Add I2C based driver for ps8640 bridge

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Date:	Fri, 16 Oct 2015 08:27:01 -0500
From:	Rob Herring <robh+dt@...nel.org>
To:	Mark Rutland <mark.rutland@....com>
Cc:	CK Hu <ck.hu@...iatek.com>, Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	David Airlie <airlied@...ux.ie>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Jitao Shi <jitao.shi@...iatek.com>,
	Thierry Reding <treding@...dia.com>,
	Ajay Kumar <ajaykumar.rs@...sung.com>,
	Inki Dae <inki.dae@...sung.com>,
	Rahul Sharma <rahul.sharma@...sung.com>,
	Sean Paul <seanpaul@...omium.org>,
	Vincent Palatin <vpalatin@...omium.org>,
	Andy Yan <andy.yan@...k-chips.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Russell King <rmk+kernel@....linux.org.uk>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-mediatek@...ts.infradead.org, srv_heupstream@...iatek.com,
	Sascha Hauer <kernel@...gutronix.de>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	Eddie Huang <eddie.huang@...iatek.com>,
	cawa cheng <cawa.cheng@...iatek.com>
Subject: Re: [RFC 2/2] drm/bridge: Add I2C based driver for ps8640 bridge

On Fri, Oct 16, 2015 at 8:06 AM, Mark Rutland <mark.rutland@....com> wrote:
>> +     /* FIXME - use of_graph_get_port_by_id(np, 1) on newer kernels */
>> +     in_ep = of_graph_get_next_endpoint(np, NULL);
>
> Huh?
>
>> +     edidp = of_get_property(np, "edid", &size);
>
> This property wasn't mentioned in the binding document.
>
> Please describe it. If it's from a more generic binding, refer to that
> from the binding document.

It should be generic, but currently documented in individual drivers.
I also think this is not the right location in the DT for this
property. It should be part of the panel or connector node instead.

Rob
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