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

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Message-ID: <alpine.DEB.2.00.1011181256470.29924@gbean-linux.qualcomm.com>
Date:	Thu, 18 Nov 2010 12:59:07 -0800 (PST)
From:	Gregory Bean <gbean@...eaurora.org>
To:	Janakiram Sistla <janakiram.sistla@...il.com>
cc:	Gregory Bean <gbean@...eaurora.org>, 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.

>>> 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??

Targets with the v2 block define CONFIG_MSM_V2_TLMM.

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.