[U-Boot] [PATCH 2/4] pinctrl: stm32: update .bind callback

[Patrick DELAUNAY]

Hi Patrice,

> From: Patrice CHOTARD <patrice.chotard at st.com>
> Sent: vendredi 21 juin 2019 15:39
> 
> Update .bind callback in order to bind all pinctrl subnodes with "gpio-controller"
> property to gpio_stm32 driver.
> 
> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>

Reviewed-by: Patrick Delaunay <patrick.delaunay at st.com>

> ---
> 
>  drivers/pinctrl/pinctrl_stm32.c | 32 +++++++++++++++++++++++++++++++-
>  1 file changed, 31 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c index
> 43dbdd9d6a..e2e7be01ed 100644
> --- a/drivers/pinctrl/pinctrl_stm32.c
> +++ b/drivers/pinctrl/pinctrl_stm32.c
> @@ -1,5 +1,6 @@
>  #include <common.h>
>  #include <dm.h>
> +#include <dm/lists.h>
>  #include <dm/pinctrl.h>
>  #include <hwspinlock.h>
>  #include <asm/arch/gpio.h>
> @@ -364,6 +365,35 @@ static int stm32_pinctrl_config(int offset)
>  	return 0;
>  }
> 
> +static int stm32_pinctrl_bind(struct udevice *dev) {
> +	ofnode node;
> +	const char *name;
> +	int ret;
> +
> +	dev_for_each_subnode(node, dev) {
> +		debug("%s: bind %s\n", __func__, ofnode_get_name(node));
> +
> +		ofnode_get_property(node, "gpio-controller", &ret);
> +		if (ret < 0)
> +			continue;
> +		/* Get the name of each gpio node */
> +		name = ofnode_get_name(node);
> +		if (!name)
> +			return -EINVAL;
> +
> +		/* Bind each gpio node */
> +		ret = device_bind_driver_to_node(dev, "gpio_stm32",
> +						 name, node, NULL);
> +		if (ret)
> +			return ret;
> +
> +		debug("%s: bind %s\n", __func__, name);
> +	}
> +
> +	return 0;
> +}
> +
>  #if CONFIG_IS_ENABLED(PINCTRL_FULL)
>  static int stm32_pinctrl_set_state(struct udevice *dev, struct udevice *config)  {
> @@ -433,7 +463,7 @@ U_BOOT_DRIVER(pinctrl_stm32) = {
>  	.id			= UCLASS_PINCTRL,
>  	.of_match		= stm32_pinctrl_ids,
>  	.ops			= &stm32_pinctrl_ops,
> -	.bind			= dm_scan_fdt_dev,
> +	.bind			= stm32_pinctrl_bind,
>  	.probe			= stm32_pinctrl_probe,
>  	.priv_auto_alloc_size	= sizeof(struct stm32_pinctrl_priv),
>  };
> --
> 2.17.1

Regards
Patrick