modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/Documentation/devicetree/bindings/pwm/spear-pwm.txt
..
..
@@ -5,7 +5,7 @@
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   - "st,spear320-pwm"
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   - "st,spear1340-pwm"
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 - reg: physical base address and length of the controller's registers
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-- #pwm-cells: should be 2. See pwm.txt in this directory for a description of
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+- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of
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   the cells format.
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 Example: