mfd: add bcm590xx pmu DT binding

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

Signed-off-by: Matt Porter <mporter@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mfd/bcm590xx.txt b/Documentation/devicetree/bindings/mfd/bcm590xx.txt
new file mode 100644
index 000000000000..0657b28c1ba7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/bcm590xx.txt
@@ -0,0 +1,49 @@
+-------------------------------
+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
+
+-----------------------
+BCM590xx PMU Regulators
+-----------------------
+
+Required properties:
+- compatible: "brcm,bcm59056-regs"
+
+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-compatible values for BCM59056 are:
+	rfldo, camldo1, camldo2, simldo1, simlso2, sdldo, sdxldo,
+	mmcldo1, mmcldo2, audldo, micldo, usbldo, vibldo,
+	csr, iosr1, iosr2, msr, sdsr1, sdsr2, vsr
+
+Example:
+	pmu: bcm59056@8 {
+		compatible = "brcm,bcm59056";
+		reg = <0x08>;
+		interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
+		regs {
+			compatible = "brcm,bcm59056-regs";
+			regulators {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				rfldo_reg: regulator@0 {
+					reg = <0>;
+					regulator-compatible = "rfldo";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <3300000>;
+				};
+
+				...
+			};
+		};
+	};