tps65217-backlight.txt 771 B

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  1. TPS65217 family of regulators
  2. The TPS65217 chip contains a boost converter and current sinks which can be
  3. used to drive LEDs for use as backlights.
  4. Required properties:
  5. - compatible: "ti,tps65217"
  6. - reg: I2C slave address
  7. - backlight: node for specifying WLED1 and WLED2 lines in TPS65217
  8. - isel: selection bit, valid values: 1 for ISEL1 (low-level) and 2 for ISEL2 (high-level)
  9. - fdim: PWM dimming frequency, valid values: 100, 200, 500, 1000
  10. - default-brightness: valid values: 0-100
  11. Each regulator is defined using the standard binding for regulators.
  12. Example:
  13. tps: tps@24 {
  14. reg = <0x24>;
  15. compatible = "ti,tps65217";
  16. backlight {
  17. isel = <1>; /* 1 - ISET1, 2 ISET2 */
  18. fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
  19. default-brightness = <50>;
  20. };
  21. };