linux-kernel - Re: [PATCH 1/4 v4] drivers: create a pin control subsystem

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Message-ID: <CAGsJ_4yCAcu3uiSuDQ13ai8tmnoDkniQymp6M7DGJi84AW4mBg@mail.gmail.com>
Date:	Wed, 24 Aug 2011 14:24:32 +0800
From:	Barry Song <21cnbao@...il.com>
To:	Linus Walleij <linus.walleij@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Russell King <linux@....linux.org.uk>,
	Joe Perches <joe@...ches.com>,
	Linaro Dev <linaro-dev@...ts.linaro.org>
Subject: Re: [PATCH 1/4 v4] drivers: create a pin control subsystem

> +int foo_list(struct pinmux_dev *pmxdev, unsigned selector)

pinctrl_dev?

> +{
> +       if (selector >= ARRAY_SIZE(myfuncs))
> +               return -EINVAL;
> +       return 0;
> +}
> +
> +const char *foo_get_fname(struct pinmux_dev *pmxdev, unsigned selector)

pinctrl_dev?

> +{
> +       if (selector >= ARRAY_SIZE(myfuncs))
> +               return NULL;
> +       return myfuncs[selector].name;
> +}
> +
> +static int foo_get_pins(struct pinmux_dev *pmxdev, unsigned selector,
> +                       unsigned ** const pins, unsigned * const num_pins)

pinctrl_dev?

> +{
> +       if (selector >= ARRAY_SIZE(myfuncs))
> +               return -EINVAL;
> +       *pins = myfuncs[selector].pins;
> +       *num_pins = myfuncs[selector].num_pins;
> +       return 0;
> +}
> +
> +int foo_enable(struct pinmux_dev *pmxdev, unsigned selector)
> +{
> +       if (selector < ARRAY_SIZE(myfuncs))
> +               write((read(MUX)|(1<<selector)), MUX)
> +               return 0;
> +       }
> +       return -EINVAL;
> +}
> +
> +int foo_disable(struct pinmux_dev *pmxdev, unsigned selector)

pinctrl_dev?

-barry
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