linux-kernel - Re: [PATCH 2/2] pinctrl: mediatek: Adjust mt8173 pinctrl kconfig

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Date:	Fri, 13 Mar 2015 11:08:37 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	srv_heupstream@...iatek.com,
	Hongzhou Yang <hongzhou.yang@...iatek.com>,
	Catalin Marinas <catalin.marinas@....com>,
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
	linux-mediatek@...ts.infradead.org,
	Matthias Brugger <matthias.bgg@...il.com>
Subject: Re: [PATCH 2/2] pinctrl: mediatek: Adjust mt8173 pinctrl kconfig

On Friday 13 March 2015 14:46:35 Yingjoe Chen wrote:
> > which will let you turn on the options if COMPILE_TEST is set, but not
> > let you turn them off when the drivers are required.
> 
> Yes, this is preferred. Because we don't have MACH_MT8173, so it is
> possible a ARM64 + ARCH_MEDIATEK system doesn't need PINCTRL_MT8173, so
> we still need 2 slightly different logic. Is it OK if I do this?
> Also add some comments so future SoCs can follow the correct template.
> 
> # For ARMv7 SoCs
> config PINCTRL_MT8135
>         bool "Mediatek MT8135 pin control" if COMPILE_TEST && !MACH_MT8135
>         default MACH_MT8135
>         select PINCTRL_MTK_COMMON
> 
> # For ARMv8 SoCs
> config PINCTRL_MT8173
>         bool "Mediatek MT8173 pin control"
>         depends on ARM64 || COMPILE_TEST
>         default ARM64
>         select PINCTRL_MTK_COMMON
> 

Looks good with one modification: please make it

	default ARM64 && ARCH_MEDIATEK

so the driver does not get turned on by default for ARM64 configurations that
do not contain support for mediatek chips.

	Arnd
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