Re: [PATCH 3/4] can: mcp251xfd: add gpio functionality

[Marc Kleine-Budde <mkl@pengutronix.de>]

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On 17.04.2024 15:43:56, Gregor Herburger wrote:
> The mcp251xfd devices allow two pins to be configured as gpio. Add this
> functionality to driver.
> 
> Signed-off-by: Gregor Herburger <gregor.herburger@ew.tq-group.com>
> ---
>  drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c   | 138 ++++++++++++++++++++++-
>  drivers/net/can/spi/mcp251xfd/mcp251xfd-regmap.c |  21 +++-
>  drivers/net/can/spi/mcp251xfd/mcp251xfd.h        |   4 +
>  3 files changed, 159 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
> index eb699288c076..5ba9fd0af4b6 100644
> --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
> +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c

[...]

> +static int mcp251fdx_gpio_setup(struct mcp251xfd_priv *priv)
> +{
> +	struct gpio_chip *gc = &priv->gc;
> +
> +	if (!device_property_present(&priv->spi->dev, "gpio-controller"))
> +		return 0;
> +
> +	if (priv->rx_int)
> +		return dev_err_probe(&priv->spi->dev, -EINVAL,
> +				     "Can't configure gpio-controller with RX-INT!\n");

Can you enhance the DT binding to reflect this?

regards,
Marc

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