Qualcomm Technologies, Inc. mdss-qpic

mdss-qpic is a qpic controller device which supports dma transmission to MIPI
and LCDC panel.

Required properties:
- compatible:			must be "qcom,mdss_qpic"
- reg:					offset and length of the register set for the device.
- reg-names :			names to refer to register sets related to this device
- interrupts:			IRQ line
- vdd-supply:			Phandle for vdd regulator device node.
- avdd-supply:			Phandle for avdd regulator device node.
- qcom,cs-gpio:			Phandle for cs gpio device node.
- qcom,te-gpio:			Phandle for te gpio device node.
- qcom,rst-gpio:		Phandle for rst gpio device node.
- qcom,ad8-gpio:		Phandle for ad8 gpio device node.
- qcom,bl-gpio:			Phandle for backlight gpio device node.

Optional properties:
- Refer to "Documentation/devicetree/bindings/arm/msm/msm_bus.txt" for
below Bus Scaling properties:
	- qcom,msm-bus,name
	- qcom,msm-bus,num-cases
	- qcom,msm-bus,num-paths
	- qcom,msm-bus,vectors-KBps

Example:
	qcom,msm_qpic@f9ac0000 {
		compatible = "qcom,mdss_qpic";
		reg = <0xf9ac0000 0x24000>;
		reg-names = "qpic_base";
		interrupts = <0 251 0>;

		qcom,msm-bus,name = "mdss_qpic";
		qcom,msm-bus,num-cases = <2>;
		qcom,msm-bus,num-paths = <1>;

		qcom,msm-bus,vectors-KBps =
			<91 512 0 0>,
			<91 512 400000 800000>;

		vdd-supply = <&pm8019_l11>;
		avdd-supply = <&pm8019_l14>;
		qcom,cs-gpio = <&msmgpio 21 0>;
		qcom,te-gpio = <&msmgpio 22 0>;
		qcom,rst-gpio = <&msmgpio 23 0>;
		qcom,ad8-gpio = <&msmgpio 20 0>;
		qcom,bl-gpio = <&msmgpio 84 0>;
	};