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| author | Javier Martinez Canillas <javier@dowhile0.org> | 2017-06-15 20:49:21 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2017-07-18 09:26:19 +0200 |
| commit | dddfd098523953b65706fb3647cb33a8fbb6d904 (patch) | |
| tree | 0b69f7dbe084e031459e4be222b8335aef8225db | |
| parent | Linux v4.13-rc1 (diff) | |
| download | linux-dddfd098523953b65706fb3647cb33a8fbb6d904.tar.xz linux-dddfd098523953b65706fb3647cb33a8fbb6d904.zip | |
dt-bindings: mfd: Add retu/tahvo ASIC chips bindings
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 <javier@dowhile0.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/retu.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/retu.txt b/Documentation/devicetree/bindings/mfd/retu.txt new file mode 100644 index 000000000000..876242394a16 --- /dev/null +++ b/Documentation/devicetree/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>; + }; +}; |