修改背光 - pwm3

hc

2024-08-15 77e89012189e2b1c68eace320794579f45b94136

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ST-Ericsson COH 901 571/3 GPIO controller
 
Required properties:
- compatible: Compatible property value should be "stericsson,gpio-coh901"
- reg: Physical base address of the controller and length of memory mapped
  region.
- interrupts: the 0...n interrupts assigned to the different GPIO ports/banks.