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Diffstat (limited to 'dts/Bindings/mfd/retu.txt')
| -rw-r--r-- | dts/Bindings/mfd/retu.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/dts/Bindings/mfd/retu.txt b/dts/Bindings/mfd/retu.txt new file mode 100644 index 0000000000..876242394a --- /dev/null +++ b/dts/Bindings/mfd/retu.txt @@ -0,0 +1,25 @@ +* Device tree bindings for Nokia Retu and Tahvo multi-function device + +Retu and Tahvo are a multi-function devices found on Nokia Internet +Tablets (770, N800 and N810). The Retu chip provides watchdog timer +and power button control functionalities while Tahvo chip provides +USB transceiver functionality. + +Required properties: +- compatible: "nokia,retu" or "nokia,tahvo" +- reg: Specifies the CBUS slave address of the ASIC chip +- interrupts: The interrupt line the device is connected to +- interrupt-parent: The parent interrupt controller + +Example: + +cbus0 { + compatible = "i2c-cbus-gpio"; + ... + retu: retu@1 { + compatible = "nokia,retu"; + interrupt-parent = <&gpio4>; + interrupts = <12 IRQ_TYPE_EDGE_RISING>; + reg = <0x1>; + }; +}; |