diff options
| -rw-r--r-- | drivers/gpio/mxs_gpio.c | 15 |
1 files changed, 15 insertions, 0 deletions
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); +} |