[PATCH v5 03/21] of: property: make #.*-cells optional for simple props

Michael Walle
2022-12-06T20:09:36Z

Sometimes, future bindings for phandles will get additional arguments.
Thus the target node of the phandle will need a new #.*-cells property.
To be backwards compatible, this needs to be optional.

Prepare the DEFINE_SIMPLE_PROPS() to handle the cells name as optional.

Signed-off-by: Michael Walle <michael@walle.cc>
Tested-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
changes since v4:
- none

changes since v3:
- new patch

drivers/of/property.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 134cfc980b70..3043ca7735db 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1256,8 +1256,8 @@ static struct device_node *parse_suffix_prop_cells(struct device_node *np,
if (strcmp_suffix(prop_name, suffix))
return NULL;

- if (of_parse_phandle_with_args(np, prop_name, cells_name, index,
- &sup_args))
+ if (__of_parse_phandle_with_args(np, prop_name, cells_name, 0, index,
+ &sup_args))
return NULL;

return sup_args.np;