Merge "bindings: add support for qcom,pmic-glink"

QTI PMIC Glink binding

This binding describes the Qualcomm Technologies, Inc. PMIC GLink device. PMIC

Glink handles the communication between different clients (e.g. battery charger,

UCSI PPM) on the Application processor and charger firmware running on the

remote subsystem (e.g. DSP) over Glink channel.

- compatible:

	Usage: required

	Value type: <stringlist>

	Definition: must be "qcom,pmic-glink"

Refer to Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt for

information on rpmsg device ("qcom,pmic_glink_rpmsg" used in the example below)

that needs to be specified under a glink device.

= SUBNODE

Each subnode specifies a client of PMIC Glink device that will be instantiated

after the PMIC Glink device initializes.

= EXAMPLE

= PMIC Glink rpmsg device

&glink_adsp {

	...

	qcom,pmic_glink_rpmsg {

		qcom,glink-channels = "PMIC_RTR_ADSP_APPS";

	};

	...

};

= PMIC Glink device with child subnodes

&soc {

	qcom,pmic_glink {

		compatible = "qcom,pmic-glink";

		qcom,batt_chg {

			compatible = "qcom,battery-charger";

		};

		qcom,ucsi_ppm {

			compatible = "qcom,ucsi-ppm";

		};

	};

};