linux-kernel - Re: PCF857x and 16-bit GPIO expanders

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Message-ID: <CACRpkdYn8yaTyFJMaC3vK4kGrQsaZpAX=pyn5y33ers7QhQ_pg@mail.gmail.com>
Date:	Wed, 18 Sep 2013 13:16:27 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Felipe Balbi <balbi@...com>,
	George Cherian <george.cherian@...com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Cc:	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>
Subject: Re: PCF857x and 16-bit GPIO expanders

On Tue, Sep 17, 2013 at 9:07 PM, Felipe Balbi <balbi@...com> wrote:

> has anyone ever successfully using gpio-pcf857x.c driver with 16-bit
> gpio expanders ? We're having some issues here where toggling the last
> gpio pin (gpio 15) on a PCF8575 device causes platform to hang and I
> can't come up with any explanation of why would it hang...

Bouncing the question to George, Laurent and Kuninori...

Yours,
Linus Walleij
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