linux-kernel - Re: [PATCH v1] ARM: tegra: add nvidia,wdt-timer-id optional property

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Message-ID: <52F005A0.4080807@wwwdotorg.org>
Date:	Mon, 03 Feb 2014 14:09:52 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Andrew Chew <AChew@...dia.com>, Mark Rutland <mark.rutland@....com>
CC:	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	Pawel Moll <Pawel.Moll@....com>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"galak@...eaurora.org" <galak@...eaurora.org>,
	"rob@...dley.net" <rob@...dley.net>,
	"thierry.reding@...il.com" <thierry.reding@...il.com>,
	"abrestic@...omium.org" <abrestic@...omium.org>,
	"dgreid@...omium.org" <dgreid@...omium.org>,
	"katierh@...omium.org" <katierh@...omium.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] ARM: tegra: add nvidia,wdt-timer-id optional property

On 02/03/2014 11:59 AM, Andrew Chew wrote:
>> On Fri, Jan 31, 2014 at 09:46:51PM +0000, Andrew Chew wrote:
>>> This optional property can be used to specify which timers are to be
>>> used for hardware watchdog timeouts (via a tegra wdt driver).
>>
>> Is there any reason that a particular timer should be used?
> 
> I worry about colliding with other timer allocations, and wanted to be
> flexible in this regard.

Are the other timer allocations represented in DT, or simply made by or
hard-coded in the driver? If the former, this property seems like a good
equivalent of any existing allocations. If the latter, can't the driver
just allocate or hard-code the allocation in the same way as any
existing allocations?
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