of_parse_phandle_with_args (called by dev_read_phandle_with_args) does not support getting the length of a phandle list by using the index -1. Instead, use dev_count_phandle_with_args which supports exactly this use-case.
Fixes: 3669e0e759 ("dm: gpio: Add better functions to request GPIOs")
Signed-off-by: Sean Anderson sean.anderson@seco.com ---
drivers/gpio/gpio-uclass.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index 8dc647dc9f..8de6fe58a4 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -1214,8 +1214,8 @@ int gpio_get_list_count(struct udevice *dev, const char *list_name) { int ret;
- ret = dev_read_phandle_with_args(dev, list_name, "#gpio-cells", 0, -1, - NULL); + ret = dev_count_phandle_with_args(dev, list_name, "#gpio-cells", + -ENOENT); if (ret) { debug("%s: Node '%s', property '%s', GPIO count failed: %d\n", __func__, dev->name, list_name, ret);