linux-kernel - Re: [PATCH v5 2/3] clocksource: keystone: add bindings for keystone timer

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Message-ID: <52F28875.9000200@ti.com>
Date:	Wed, 5 Feb 2014 20:52:37 +0200
From:	Ivan Khoronzhuk <ivan.khoronzhuk@...com>
To:	Rob Herring <robherring2@...il.com>
CC:	Santosh Shilimkar <santosh.shilimkar@...com>,
	Rob Landley <rob@...dley.net>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Grygorii Strashko <grygorii.strashko@...com>
Subject: Re: [PATCH v5 2/3] clocksource: keystone: add bindings for keystone
 timer


On 02/05/2014 07:41 PM, Rob Herring wrote:
> On Wed, Feb 5, 2014 at 10:18 AM, Ivan Khoronzhuk <ivan.khoronzhuk@...com> wrote:
>> On 02/05/2014 04:39 PM, Rob Herring wrote:
>>> On Wed, Feb 5, 2014 at 7:47 AM, Ivan Khoronzhuk <ivan.khoronzhuk@...com>
>>> wrote:
>>>> This patch provides bindings for the 64-bit timer in the KeyStone
>>>> architecture devices. The timer can be configured as a general-purpose
>>>> 64-bit
>>>> timer, dual general-purpose 32-bit timers. When configured as dual 32-bit
>>>> timers, each half can operate in conjunction (chain mode) or
>>>> independently
>>>> (unchained mode) of each other.
>>> This is software configurable or h/w design time configurations?
>>>
>>> Rob
>>>
>> This is h/w design time configurations
> Then it seems like the binding should provide for describing those
> differences either with a property or different compatible strings.
>
> Rob
Oh..sorry, seems I didn't catch, this is configurable by software.
These configurations are like modes in which timer can work
and they are not different hardware IPs. It depends on driver in
which mode it should work.

-- 
Regards,
Ivan Khoronzhuk

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