[PATCH 3/7] LED: Add gpio LED support

[Sascha Hauer]

On Sat, Dec 18, 2010 at 05:41:48PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > +
> > +/**
> > + * led_gpio_unregister - remove a gpio controlled LED from the framework
> > + * @param led	The gpio LED
> > + */
> > +void led_gpio_unregister(struct gpio_led *led)
> > +{
> > +	led_unregister(&led->led);
> > +}
> > +
> how abaout make the rgb support optional?

Good point, most boards do not have this kind of stuff.

> > +static void led_gpio_rgb_set(struct led *led, unsigned int value)
> > +{
> > +	struct gpio_rgb_led *rgb = container_of(led, struct gpio_rgb_led, led);
> > +	int al = rgb->active_low;
> > +
> > +	gpio_direction_output(rgb->gpio_r, !!(value & 4) ^ al);
> > +	gpio_direction_output(rgb->gpio_g, !!(value & 2) ^ al);
> > +	gpio_direction_output(rgb->gpio_b, !!(value & 1) ^ al);
> > +}
> > +
> > +/**
> > + * led_gpio_rgb_register - register three gpios as a rgb LED
> > + * @param led	The gpio rg LED
> > + *
> > + * This function registers three gpios as a rgb LED. led->gpio[rgb]
> > + * should be initialized to the gpios to control.
> > + */
> > +int led_gpio_rgb_register(struct gpio_rgb_led *led)
> no safe check?

no.

> > +{
> > +	led->led.set = led_gpio_rgb_set;
> > +	led->led.max_value = 7;
> > +
> > +	return led_register(&led->led);
> > +}
> > +
> > +/**
> > + * led_gpio_rgb_unregister - remove a gpio controlled rgb LED from the framework
> > + * @param led	The gpio LED
> > + */
> > +void led_gpio_rgb_unregister(struct gpio_led *led)
> > +{
> > +	led_unregister(&led->led);
> > +}
> > +
> Best Regards,
> J.
> 

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