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| author | Sean Anderson <sean.anderson@seco.com> | 2021-03-31 13:50:36 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-04-19 16:13:43 -0400 |
| commit | 4f60b163efab31a845fe53b433f6bd718d087e48 (patch) | |
| tree | dcc9ee7ea26ad7b3de9874b228457125c9abd925 | |
| parent | 9bd52512859970ad7b8216579fab70d01d91b84f (diff) | |
| download | u-boot-4f60b163efab31a845fe53b433f6bd718d087e48.zip u-boot-4f60b163efab31a845fe53b433f6bd718d087e48.tar.gz u-boot-4f60b163efab31a845fe53b433f6bd718d087e48.tar.bz2 | |
dm: gpio: Fix gpio_get_list_count failing with livetree
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.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/gpio/gpio-uclass.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index e4e7f58..131099c 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -1215,9 +1215,9 @@ 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); - if (ret) { + ret = dev_count_phandle_with_args(dev, list_name, "#gpio-cells", + -ENOENT); + if (ret < 0) { debug("%s: Node '%s', property '%s', GPIO count failed: %d\n", __func__, dev->name, list_name, ret); } |