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scripts: dts: Generalize '#cells' to allow multiple sources

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Implement a nice generalization suggested by Bobby Noelte.

Instead of having a generic #cells key in bindings, have source-specific
*-cells keys. Some examples:

    interrupt-cells:
        - irq
        - priority
        - flags

    gpio-cells:
        - pin
        - flags

    pwm-cells:
        - channel
        - period

This makes bindings a bit easier to read, and allows a node to be a
controller for many different 'phandle-array' properties.

The prefix before *-cells is derived from the property name, meaning
there's no fixed set of *-cells keys. This is possible because of the
earlier 'phandle-array' generalization.

The older #cells key is supported for backwards compatibility, but
generates a deprecation warning.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This commit is contained in:
Ulf Magnusson 2019-09-26 20:34:13 +02:00 • committed by Kumar Gala
commit 567c348167
78 changed files with 182 additions and 127 deletions
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2
dts/bindings/riscv/openisa,rv32m1-pcc.yaml
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@ -20,5 +20,5 @@ properties:
"#clock-cells":
const: 1
"#cells":
clock-cells:
- name