enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/Documentation/devicetree/bindings/pwm/pwm-berlin.txt
..
..
@@ -4,7 +4,7 @@
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 - compatible: should be "marvell,berlin-pwm"
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 - reg: physical base address and length of the controller's registers
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 - clocks: phandle to the input clock
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-- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
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+- #pwm-cells: should be 3. See pwm.yaml in this directory for a description of
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   the cells format.
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 Example: