linux-kernel - Re: [PATCH V2] gpio: omap: refresh patch "be more aggressive with pm

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Message-ID: <CACRpkdZBobnSZMLcW6YWc08ew1sb+UY3np+iS4=nqx5wpSNixw@mail.gmail.com>
Date:	Fri, 29 Nov 2013 11:05:20 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Chao Xu <caesarxuchao@...il.com>,
	ext Tony Lindgren <tony@...mide.com>,
	Kevin Hilman <khilman@...aro.org>
Cc:	Linux-OMAP <linux-omap@...r.kernel.org>,
	"santosh.shilimkar@...com" <santosh.shilimkar@...com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Felipe Balbi <balbi@...com>, Paul Walmsley <paul@...an.com>
Subject: Re: [PATCH V2] gpio: omap: refresh patch "be more aggressive with
 pm_runtime" against v3.12-rc5

On Tue, Nov 26, 2013 at 11:46 PM, Chao Xu <caesarxuchao@...il.com> wrote:

> From: Felipe Balbi <balbi@...com>
>
> try to keep gpio block suspended as much as possible.
>
> Tested with pandaboard and a sysfs exported gpio.
>
> Signed-off-by: Felipe Balbi <balbi at ti.com>
>
> [caesarxuchao@...il.com : Refreshed against v3.12-rc5, and added revision check to enable aggressive pm_runtime on OMAP4-only. Because am33xx_gpio_sysc.idlemodes seems to be wrongly marked as SIDLE_SMART_WKUP, which might cause missed interrupts with this patch. Tested on Pandaboard rev A2.]
>
> Signed-off-by: Chao Xu <caesarxuchao@...il.com>

I'd like Tony and/or Kevin to have a look at this from a PM point
of view so I get some confirmation from the core maintainers
that this is the way forward.

Yours,
Linus Walleij
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