Merge "misc: qpnp: add snapshot of qpnp-misc documentation"

QPNP-MISC

QPNP-MISC provides a way to read the PMIC part number and revision.

Required properties:

- compatible : should be "qcom,qpnp-misc"

- reg : offset and length of the PMIC peripheral register map.

Optional properties:

- qcom,pwm-sel:			Select PWM source. Possible values:

				0: LOW

				1: PWM1_in

				2: PWM2_in

				3: PWM1_in & PWM2_in

- qcom,enable-gp-driver:	Enable the GP driver. Should only be specified

				if a non-zero PWM source is specified under

				"qcom,pwm-sel" property.

Example:

	qcom,misc@900 {

		compatible = "qcom,qpnp-misc";

		reg = <0x900 0x100>;

		qcom,pwm-sel = <2>;

		qcom,enable-gp-driver;

	};