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

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Date:	Wed, 5 Jun 2013 16:03:40 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
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>,
	Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH 1/3] drivers: pinctrl sleep and idle states in the core

On Wed, Jun 05, 2013 at 03:44:31PM +0200, 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.
> 
> Cc: Hebbar Gururaja <gururaja.hebbar@...com>
> Cc: Mark Brown <broonie@...nel.org>
> Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> Cc: Kevin Hilman <khilman@...aro.org>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Stephen Warren <swarren@...dotorg.org>
> Cc: Wolfram Sang <wsa@...-dreams.de>
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>

Some nits:

> +	if (IS_ERR(pins->sleep_state))
> +		return 0; /* No default state */

Comment wants to say "sleep state"?

> +	ret = pinctrl_select_state(pins->p, pins->sleep_state);
> +	if (ret)
> +		dev_err(dev, "failed to activate sleep pinctrl state\n");

Better say "pinctrl sleep state"?

> +	if (IS_ERR(pins->idle_state))
> +		return 0; /* No default state */
> +	ret = pinctrl_select_state(pins->p, pins->idle_state);
> +	if (ret)
> +		dev_err(dev, "failed to activate idle pinctrl state\n");

Similar issues here...

Other than that, on all 3 patches:

Acked-by: Wolfram Sang <wsa@...-dreams.de>


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