linux-kernel - Re: [PATCH 1/3] drivers: pinctrl sleep and idle states in the core

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Date:	Wed, 05 Jun 2013 11:22:49 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Linus Walleij <linus.walleij@...ricsson.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Stephen Warren <swarren@...dia.com>,
	Kevin Hilman <khilman@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Hebbar Gururaja <gururaja.hebbar@...com>,
	Mark Brown <broonie@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Wolfram Sang <wsa@...-dreams.de>
Subject: Re: [PATCH 1/3] drivers: pinctrl sleep and idle states in the core

On 06/05/2013 07:44 AM, Linus Walleij wrote:
> From: Linus Walleij <linus.walleij@...aro.org>
> 
> If a device have sleep and idle states in addition to the
> default state, look up these in the core and stash them in
> the pinctrl state container.
> 
> Add accessor functions for pinctrl consumers to put the pins
> into "default", "sleep" and "idle" states passing nothing but
> the struct device * affected.
> 
> Solution suggested by Kevin Hilman, Mark Brown and Dmitry
> Torokhov in response to a patch series from Hebbar
> Gururaja.

> diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c

> +int pinctrl_pm_select_default_state(struct device *dev)

> +int pinctrl_pm_select_sleep_state(struct device *dev)

> +int pinctrl_pm_select_idle_state(struct device *dev)

The implementation of those 3 functions is basically identical. I'd be
inclined to move it to a helper function, and just pass (dev,
pins->xxx_state) to it.
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