Re: [PATCH RFT v7 2/6] ARM: pxa: Convert Spitz LEDs to GPIO descriptors

[Bartosz Golaszewski]

On Tue, Oct 10, 2023 at 6:33 PM Duje Mihanović <duje.mihanovic@xxxxxxxx> wrote:
>
> On Tuesday, October 10, 2023 1:12:05 PM CEST Bartosz Golaszewski wrote:
> > Gah! I should have noticed this earlier but this is a perfect
> > candidate for using hogs. Can you use gpiod_add_hogs() from
> > linux/gpio/machine.h instead? That would save you having the lookup
> > and the static leds descriptor array.
>
> From what I can tell, the hogs keep a certain pin at a certain state as long
> as the machine is powered on. Is this really what we want to do with LEDs or
> am I missing something?
>

It doesn't seem like anyone is using these GPIOs once they're
requested? Wouldn't the above definitios be analogous to:

GPIO_HOG("pxa-gpio", SPITZ_GPIO_LED_ORANGE, NULL, GPIO_ACTIVE_HIGH, GPIOD_ASIS)
GPIO_HOG("pxa-gpio", SPITZ_GPIO_LED_GREEN, NULL, GPIO_ACTIVE_HIGH, GPIOD_ASIS)

?

Bart