[U-Boot] [PATCH] gpio: mxs: add name_to_gpio() function

[Stefano Babic <sbabic@denx.de>]

On 15/12/2015 23:27, Mans Rullgard wrote:
> Override the default name_to_gpio() function with one that
> accepts strings of the form bank:pin.  If a colon is present
> in the provided name, it behaves like the default version.
> 
> This lets the "gpio" command work with sane names rather than
> requiring the user to enter the bank/pin composite in decimal.
> 
> Signed-off-by: Mans Rullgard <mans@mansr.com>
> ---
>  drivers/gpio/mxs_gpio.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/drivers/gpio/mxs_gpio.c b/drivers/gpio/mxs_gpio.c
> index da0199b..b54a10b 100644
> --- a/drivers/gpio/mxs_gpio.c
> +++ b/drivers/gpio/mxs_gpio.c
> @@ -114,3 +114,18 @@ int gpio_free(unsigned gpio)
>  {
>  	return 0;
>  }
> +
> +int name_to_gpio(const char *name)
> +{
> +	unsigned bank, pin;
> +	char *end;
> +
> +	bank = simple_strtoul(name, &end, 10);
> +
> +	if (!*end || *end != ':')
> +		return bank;
> +
> +	pin = simple_strtoul(end + 1, NULL, 10);
> +
> +	return (bank << MXS_PAD_BANK_SHIFT) | (pin << MXS_PAD_PIN_SHIFT);
> +}
> 

Reviewed-by: Stefano Babic <sbabic@denx.de>

Best regards,
Stefano Babic

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