There are Device Tree source files defining a device node for the retu/tahvo I2C chip, but there isn't a DT binding document for it.
Signed-off-by: Javier Martinez Canillas <[email protected]> Acked-by: Rob Herring <[email protected]> Acked-by: Aaro Koskinen <[email protected]> Acked-by: Tony Lindgren <[email protected]> Acked-by: Lee Jones <[email protected]> --- Changes in v5: - Add missing properties for interrupts to DT binding doc (Rob Herring). - Add Rob Herring's Acked-by tag. - Add Aaro Koskinen's Acked-by tag. - Add Acked-by: Tony Lindgren <[email protected]>'s Acked-by tag. - Add Lee Jones <[email protected]>'s Acked-by tag. Changes in v4: - Use "dt-bindings: mfd:" prefix in subject line (Rob Herring). - Add information about what functions the device serve (Lee Jones). - Avoid using MFD in Device Tree (Lee Jones). Changes in v3: None Changes in v2: None Documentation/devicetree/bindings/mfd/retu.txt | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/retu.txt diff --git a/Documentation/devicetree/bindings/mfd/retu.txt b/Documentation/devicetree/bindings/mfd/retu.txt new file mode 100644 index 000000000000..e1ea3a36a038 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/retu.txt @@ -0,0 +1,23 @@ +* 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 I2C slave address of the ASIC chip +- interrupts: The interrupt line the device is connected to +- interrupt-parent: The parent interrupt controller + +Example: + +i2c0 { + retu: retu@1 { + compatible = "nokia,retu"; + interrupt-parent = <&gpio4>; + interrupts = <12 IRQ_TYPE_EDGE_RISING>; + reg = <0x1>; + }; +}; -- 2.9.3
