Hi! > Introduce a new multiple GPIOs LED driver. This LED will made of > multiple GPIOs (up to 8) and will map different brightness to different > GPIOs states which defined in dts file. > > Signed-off-by: Hermes Zhang <chenh...@axis.com>
> index 000000000000..7aef82701f86
> --- /dev/null
> +++ b/drivers/leds/simple/Kconfig
> @@ -0,0 +1,23 @@
> +menuconfig LEDS_SIMPLE
> + bool "Simple LED support"
> + depends on LEDS_CLASS
> + help
> + This option enables simple leds support for the leds class.
> + If unsure, say Y.
No need for new config symbol.
> + if (ret != 1 << gpios->ndescs) {
I'd do (ret != (1 << gpios->ndescs))
> + priv = devm_kzalloc(dev, sizeof(struct multi_gpio_led_priv)
> + + sizeof(u8) * nr_states , GFP_KERNEL);
Sizeof(u8) is always 1, no need for space before , .
> + of_property_read_string(node, "default-state", &state);
> + if (!strcmp(state, "on"))
> + multi_gpio_led_set(&priv->cdev, priv->cdev.max_brightness);
> + else
> + multi_gpio_led_set(&priv->cdev, 0);
No need for default-state handling, unless you are using it.
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
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