dm: gpio: Correct use of -ENODEV in drivers
In U-Boot -ENODEV means that there is no device. When there is a problem
with the device, drivers should return an error like -ENXIO or -EREMOTEIO.
When the device tree properties cannot be read correct , they should
return -EINVAL.
Update various GPIO drivers to follow this rule, to help with consistency
for future driver writers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Adam Ford <aford173@gmail.com>
diff --git a/drivers/gpio/adi_gpio2.c b/drivers/gpio/adi_gpio2.c
index 4db08a3..1012f2d 100644
--- a/drivers/gpio/adi_gpio2.c
+++ b/drivers/gpio/adi_gpio2.c
@@ -138,7 +138,7 @@
return 0;
if (!(per & P_DEFINED))
- return -ENODEV;
+ return -EINVAL;
BUG_ON(ident >= MAX_RESOURCES);