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: 8558217153 ("gpio: Convert to use APIs which support live DT")
Signed-off-by: Sean Anderson <sean.ander...@seco.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
Changes in v2:
- Change Fixes tag to the most recent commit touching these lines
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);
--
2.25.1
