linux-kernel - Re: [PATCH v2] ARM: ASPEED: update default ARCH_NR_GPIO for ARCH

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Date:   Mon, 25 Nov 2019 10:34:22 +1030
From:   "Andrew Jeffery" <andrew@...id.au>
To:     "Tao Ren" <rentao.bupt@...il.com>,
        "Russell King" <linux@...linux.org.uk>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        "Arnd Bergmann" <arnd@...db.de>,
        "Linus Walleij" <linus.walleij@...aro.org>,
        "Paul Burton" <paulburton@...nel.org>,
        "Andrew Morton" <akpm@...ux-foundation.org>,
        "Mauro Carvalho Chehab" <mchehab+samsung@...nel.org>,
        "Bartosz Golaszewski" <bgolaszewski@...libre.com>,
        "Mike Rapoport" <rppt@...ux.ibm.com>,
        "Doug Anderson" <armlinux@...isordat.com>,
        "Ard Biesheuvel" <ard.biesheuvel@...aro.org>,
        "Benjamin Gaignard" <benjamin.gaignard@...aro.org>,
        "Joel Stanley" <joel@....id.au>, arm@...nel.org, soc@...nel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, openbmc@...ts.ozlabs.org,
        "Tao Ren" <taoren@...com>
Subject: Re: [PATCH v2] ARM: ASPEED: update default ARCH_NR_GPIO for ARCH_ASPEED



On Thu, 31 Oct 2019, at 12:10, rentao.bupt@...il.com wrote:
> From: Tao Ren <rentao.bupt@...il.com>
> 
> Increase the max number of GPIOs from default 512 to 1024 for ASPEED
> platforms, because Facebook Yamp (AST2500) BMC platform has total 594
> GPIO pins (232 provided by ASPEED SoC, and 362 by I/O Expanders).
> 
> Signed-off-by: Tao Ren <rentao.bupt@...il.com>
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Hopefully userspace is not making assumptions about sysfs gpiochip numbers.

Acked-by: Andrew Jeffery <andrew@...id.au>