linux-kernel - Re: [PATCH v4 2/2] msm: gpio: Add irq support to v2 gpiolib.

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Date:	Thu, 18 Nov 2010 12:39:32 -0800
From:	Janakiram Sistla <janakiram.sistla@...il.com>
To:	Gregory Bean <gbean@...eaurora.org>
Cc:	dwalker@...eaurora.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] msm: gpio: Add irq support to v2 gpiolib.

On Thu, Nov 18, 2010 at 12:30 PM, Gregory Bean <gbean@...eaurora.org> wrote:
> On Thu, 18 Nov 2010, Janakiram Sistla wrote:
>
>> Can you let me know how this naming convention gpio-v2??
>>
>> Do you mean to MSM have v1 and v2 gpio hardware ??? can not we
>> have one file under mach-msm as gpio.c??
>
> The MSM8x60 is the first MSM chip to carry the second-generation, or v2,
> GPIO hardware block.  This block is not backward compatible with the
> v1 block found on older MSMs, so the two drivers cannot be elegantly merged.
so this is applicable to 8x60 and coming chip sets.I basically have a
question,How come a a new person under stand the  chipset uses gpio-v1
or gpiov2??
> --
> Employee of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
>
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