static int dm_gpio_requestf(struct gpio_desc *desc, const char *fmt, ...)
{
#if !defined(CONFIG_SPL_BUILD) || !defined(CONFIG_USE_TINY_PRINTF)
va_list args;
char buf[40];
va_start(args, fmt);
vscnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
return dm_gpio_request(desc, buf);
#else
return dm_gpio_request(desc, fmt);
#endif
}
static int dm_gpio_requestf(struct gpio_desc *desc, const char *fmt, ...)
{
va_list args;
char buf[40];
va_start(args, fmt);
vscnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
return dm_gpio_request(desc, buf);
}
/**
* gpio_request() - [COMPAT] Request GPIO
* gpio: GPIO number
* label: Name for the requested GPIO
*
* The label is copied and allocated so the caller does not need to keep
* the pointer around.
*
* This function implements the API that's compatible with current
* GPIO API used in U-Boot. The request is forwarded to particular
* GPIO driver. Returns 0 on success, negative value on error.
*/
int gpio_request(unsigned gpio, const char *label)
{
struct gpio_desc desc;
int ret;
ret = gpio_to_device(gpio, &desc);
if (ret)
return ret;
return dm_gpio_request(&desc, label);
}
int request_gpio_by_name(struct gpio_desc *gpio, const char *gpio_dev_name,
uint offset, char *gpio_name)
{
struct udevice *gpio_dev = NULL;
if (uclass_get_device_by_name(UCLASS_GPIO, gpio_dev_name, &gpio_dev))
return 1;
gpio->dev = gpio_dev;
gpio->offset = offset;
gpio->flags = 0;
return dm_gpio_request(gpio, gpio_name);
}
static int configure_emmc(struct udevice *pinctrl)
{
#if defined(CONFIG_TARGET_CHROMEBOOK_JERRY)
struct gpio_desc desc;
int ret;
pinctrl_request_noflags(pinctrl, PERIPH_ID_EMMC);
/*
* TODO([email protected]): Pick this up from device tree or perhaps
* use the EMMC_PWREN setting.
*/
ret = dm_gpio_lookup_name("D9", &desc);
if (ret) {
debug("gpio ret=%d\n", ret);
return ret;
}
ret = dm_gpio_request(&desc, "emmc_pwren");
if (ret) {
debug("gpio_request ret=%d\n", ret);
return ret;
}
ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
if (ret) {
debug("gpio dir ret=%d\n", ret);
return ret;
}
ret = dm_gpio_set_value(&desc, 1);
if (ret) {
debug("gpio value ret=%d\n", ret);
return ret;
}
#endif
return 0;
}
