Hi Thierry,
On Fri, Nov 11, 2022 at 12:40 PM Thierry Reding
<thierry.reding@xxxxxxxxx> wrote:
> From: Thierry Reding <treding@xxxxxxxxxx>
>
> The OF node store in chip->fwnode is used to explicitly override the FW
> node for a GPIO chip. For chips that use the default FW node (i.e. that
> of their parent device), this will be NULL and cause the chip not to be
> fully registered.
>
> Instead, use the GPIO device's FW node, which is set to either the node
> of the parent device or the explicit override in chip->fwnode.
>
> Fixes: 8afe82550240 ("gpiolib: of: Prepare of_gpiochip_add() / of_gpiochip_remove() for fwnode")
Thank you, I bisected boot failures on Renesas platforms to that
commit, and then found your patch.
> Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
> drivers/gpio/gpiolib-of.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
> index 4be3c21aa718..55c3712592db 100644
> --- a/drivers/gpio/gpiolib-of.c
> +++ b/drivers/gpio/gpiolib-of.c
> @@ -1067,7 +1067,7 @@ int of_gpiochip_add(struct gpio_chip *chip)
> struct device_node *np;
> int ret;
>
> - np = to_of_node(chip->fwnode);
> + np = to_of_node(dev_fwnode(&chip->gpiodev->dev));
> if (!np)
> return 0;
>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
