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of: property: make #.*-cells optional for simple props

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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>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230206134356.839737-11-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Walle 2023-02-06 13:43:44 +00:00 committed by Greg Kroah-Hartman
parent c5d264d4b5
commit ff24fed10b
1 changed files with 2 additions and 2 deletions
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4
drivers/of/property.c
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@ -1202,8 +1202,8 @@ static struct device_node *parse_prop_cells(struct device_node *np,
if (strcmp(prop_name, list_name))
return NULL;
if (of_parse_phandle_with_args(np, list_name, cells_name, index,
&sup_args))
if (__of_parse_phandle_with_args(np, list_name, cells_name, 0, index,
&sup_args))
return NULL;
return sup_args.np;