Re: [PATCH 1/1] gpio: tegra186: Set fwnode of the GPIO chip

Andy Shevchenko
2023-10-10T13:13:29Z

On Mon, Oct 09, 2023 at 10:38:58AM -0700, Dipen Patel wrote:

Tbank you! My comments below.

> Any driver that depends on the GPIO match function to locate the GPIO
> controller, it has to use the fwnode from the gpio_chip structure. But
> with [1], it is GPIO providers job to set any members of the gpio_chip
> structure. This patch addresses that.

> [1] https://git.kernel.org/pub/scm/linux/kernel/git/pateldipen1984/linux.git/patch/drivers/gpio/gpiolib.c?id=daecca4b8433d47f0db4933bcc0f283d530ba22e

Use Link: tag for this?

...

> + /*
> + * This is needed for driver using gpio device matching where it
> + * has to use gpio_chip fwnode to match the gpio controller.
> + */
> + gpio->gpio.fwnode = of_node_to_fwnode(pdev->dev.of_node);

of_node_to_fwnode() is specific to IRQ, in other places we use generic
of_fwnode_handle(). That's why better just to use dev_fwnode().

...

With the above addressed:
Reviewed-by: Andy Shevchenko <andy@kernel.org>