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| H A D | dt_driver.c | f1f7c58eeb86edb6ff3d57d657f56273864f26f5 Tue Mar 29 13:42:49 UTC 2022 Clément Léger <clement.leger@bootlin.com> core: dt_driver: allow parsing of phandle == 0
In Linux, it is allowed to specify a null phandle which means it should
be skipped. Add support for this specific case by simply skipping over
it. This is needed to parse assigned-clock-parents which can use such
syntax. This is specified in the clock bindings [1] which says the
following:
To skip setting parent or rate of a clock its corresponding entry
should be set to 0, or can be omitted if it is not followed by any
non-zero entry
For example this is a valid device-tree description:
assigned-clocks = <foo>, <bar>;
assigned-clock-parents = <0> <bar_parent>;
assigned-clock-rates = <1000>;
Link: [1] https://www.kernel.org/doc/Documentation/devicetree/bindings/clock/clock-bindings.txt
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
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