Messages in this thread Patch in this message | | | From | Javier Martinez Canillas <> | Subject | [PATCH v6 1/8] dt-bindings: mfd: Add retu/tahvo ASIC chips bindings | Date | Thu, 4 May 2017 01:21:00 -0400 |
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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> Acked-by: Lee Jones <lee.jones@linaro.org>
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Changes in v6: - Mention CBUS address instead of I2C since that's the bus used (Wolfram Sang). - Add a "i2c-cbus-gpio" comptible and use cbus0 for parent node (Wolfram Sang).
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 <tony@atomide.com>'s Acked-by tag. - Add Lee Jones <lee.jones@linaro.org>'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 | 25 +++++++++++++++++++++++++ 1 file changed, 25 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..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>; + }; +}; -- 2.9.3
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