linux-kernel - Re: [PATCH] video: ARM CLCD: Added support for FBIOPAN

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Message-ID: <CAL_JsqKMP4JxQ-Q5V1skcaKPdhC4v-joOrNyn++tMfat8arMKA@mail.gmail.com>
Date:	Mon, 2 Mar 2015 17:22:02 -0600
From:	Rob Herring <robherring2@...il.com>
To:	Arun Ramamurthy <arun.ramamurthy@...adcom.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Pawel Moll <pawel.moll@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <Mark.Rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
	Dmitry Torokhov <dtor@...gle.com>,
	Anatol Pomazau <anatol@...gle.com>,
	Jonathan Richardson <jonathar@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	Ray Jui <rjui@...adcom.com>,
	"bcm-kernel-feedback-list@...adcom.com" 
	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH] video: ARM CLCD: Added support for FBIOPAN_DISPLAY and
 virtual y resolution

On Mon, Mar 2, 2015 at 1:09 PM, Arun Ramamurthy
<arun.ramamurthy@...adcom.com> wrote:
>
>
> On 15-03-02 08:11 AM, Russell King - ARM Linux wrote:
>>
>> On Mon, Mar 02, 2015 at 04:08:29PM +0000, Pawel Moll wrote:
>>>
>>> I'm not sure about this... The word "virtual" never works well with
>>> device tree nodes defined as "hardware description".
>>>
>>> I understand what you're doing, but adding this property to the display
>>> controller's node doesn't sound right. How does this describe hardware?
>>> If anywhere, it's more like a job for the panel node?
>>
>>
> I see what you are saying Pawel, I can follow Russell's recommendation of
> adding a RAM size node called max-memory-available or something similar

We've already got a binding for reserved memory regions for this
purpose. And there is also simplefb binding.

Rob
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