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a155-U-u1/kernel-5.10/drivers/misc/mediatek/flashlight/README_MT6336
2024-03-11 06:53:12 +11:00

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This is a introduction for flashlight chip MT6336
[Scope]
- Two channel for two LEDs
[Hardware Interface]
- I2C
* For general control
* Slave address 0x55, 0x56, 0x57, 0x58
[Limit]
- Channel couple:
* Flash/Torch enable
* Flash/Torch LED current source
* Flash mode watchdog timer
* Torch mode watchdog timer
* Flash/Torch timeout
* Flash mode step up/down timing (default: 10 us)
* Flash mode output regulation voltage (default: 5.0 V)
- Channel decouple:
* Flash/Torch mode enable
* Brightness level
- Torch Mode
* Step current: 12.5 mA
* Min currnet: 12.5 mA
* Max current: 200 mA
- Flash Mode
* Step current: 12.5 mA
* Min currnet: 12.5 mA
* Max current: 1500 mA
* Max current for two channel: 2500 mA
* Min protected timeout: 200 ms
* Max protected timeout: 800 ms