mfd: 88pm860x: Device tree support

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mfd/88pm860x.txt b/Documentation/devicetree/bindings/mfd/88pm860x.txt
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+* Marvell 88PM860x Power Management IC
+
+Required parent device properties:
+- compatible : "marvell,88pm860x"
+- reg : the I2C slave address for the 88pm860x chip
+- interrupts : IRQ line for the 88pm860x chip
+- interrupt-controller: describes the 88pm860x as an interrupt controller (has its own domain)
+- #interrupt-cells : should be 1.
+                - The cell is the 88pm860x local IRQ number
+
+Optional parent device properties:
+- marvell,88pm860x-irq-read-clr: inicates whether interrupt status is cleared by read
+- marvell,88pm860x-slave-addr: 88pm860x are two chips solution. <reg> stores the I2C address
+                                of one chip, and this property stores the I2C address of
+                                another chip.
+
+88pm860x consists of a large and varied group of sub-devices:
+
+Device                   Supply Names    Description
+------                   ------------    -----------
+88pm860x-onkey          :               : On key
+88pm860x-rtc            :               : RTC
+88pm8607                :               : Regulators
+88pm860x-backlight      :               : Backlight
+88pm860x-led            :               : Led
+88pm860x-touch          :               : Touchscreen
+
+Example:
+
+        pmic: 88pm860x@34 {
+                compatible = "marvell,88pm860x";
+                reg = <0x34>;
+                interrupts = <4>;
+                interrupt-parent = <&intc>;
+                interrupt-controller;
+                #interrupt-cells = <1>;
+
+                marvell,88pm860x-irq-read-clr;
+                marvell,88pm860x-slave-addr = <0x11>;
+
+                regulators {
+                        BUCK1 {
+                                regulator-min-microvolt = <1000000>;
+                                regulator-max-microvolt = <1500000>;
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+                        LDO1 {
+                                regulator-min-microvolt = <1200000>;
+                                regulator-max-microvolt = <2800000>;
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+                };
+                rtc {
+                        marvell,88pm860x-vrtc = <1>;
+                };
+                touch {
+                        marvell,88pm860x-gpadc-prebias = <1>;
+                        marvell,88pm860x-gpadc-slot-cycle = <1>;
+                        marvell,88pm860x-tsi-prebias = <6>;
+                        marvell,88pm860x-pen-prebias = <16>;
+                        marvell,88pm860x-pen-prechg = <2>;
+                        marvell,88pm860x-resistor-X = <300>;
+                };
+                backlights {
+                        backlight-0 {
+                                marvell,88pm860x-iset = <4>;
+                                marvell,88pm860x-pwm = <3>;
+                        };
+                        backlight-2 {
+                        };
+                };
+                leds {
+                        led0-red {
+                                marvell,88pm860x-iset = <12>;
+                        };
+                        led0-green {
+                                marvell,88pm860x-iset = <12>;
+                        };
+                        led0-blue {
+                                marvell,88pm860x-iset = <12>;
+                        };
+                };
+        };