[PATCH v4 1/5] mfd: add bcm590xx pmu DT binding

[Matt Porter]

Add a DT binding for the BCM590xx PMUs. The binding inherits from
the generic regulator bindings.

Signed-off-by: Matt Porter <mporter at linaro.org>
Reviewed-by: Tim Kryger <tim.kryger at linaro.org>
Reviewed-by: Markus Mayer <markus.mayer at linaro.org>
---
 Documentation/devicetree/bindings/mfd/bcm590xx.txt | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/bcm590xx.txt

diff --git a/Documentation/devicetree/bindings/mfd/bcm590xx.txt b/Documentation/devicetree/bindings/mfd/bcm590xx.txt
new file mode 100644
index 0000000..2300246
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/bcm590xx.txt
@@ -0,0 +1,41 @@
+-------------------------------
+BCM590xx Power Management Units
+-------------------------------
+
+Required properties:
+- compatible: "brcm,bcm59056"
+- reg: I2C slave address
+- interrupts: interrupt for the PMU. Generic interrupt client node bindings
+  are described in interrupt-controller/interrupts.txt
+
+------------------
+Voltage Regulators
+------------------
+
+Optional properties:
+- regulators: This is the list of child nodes that specify the regulator
+  initialization data for defined regulators.  Generic regulator bindings
+  are described in regulator/regulator.txt.
+
+  The valid regulator nodes for BCM59056 are:
+  	rfldo, camldo1, camldo2, simldo1, simldo2, sdldo, sdxldo,
+	mmcldo1, mmcldo2, audldo, micldo, usbldo, vibldo,
+	csr, iosr1, iosr2, msr, sdsr1, sdsr2, vsr
+
+Example:
+	pmu: bcm59056 at 8 {
+		compatible = "brcm,bcm59056";
+		reg = <0x08>;
+		interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
+		regulators {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rfldo_reg: rfldo {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			...
+		};
+	};
-- 
1.8.4