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Commit fb071931 authored by David Collins's avatar David Collins
Browse files

dt-bindings: nvmem: add bindings for QTI SDAM devices 

Qualcomm Technologies, Inc. (QTI) SDAM devices provide an
interface for other PMIC peripherals to access the shared
memory found on QTI PMICs.

Change-Id: Ia8ce10171f9cfa5249dc69c7edb4d66cb959ca80
parent 546a8a1b

bindings/nvmem/qcom-spmi-sdam.txt

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+49 −0
Original line number Diff line number Diff line 
Qualcomm Technologies, Inc. Shared Direct Access Memory (SDAM)



The SDAM provides scratch register space for the PMIC clients.

This memory can be used by software to store information or communicate

to/from the PBUS.



Below are the DT bindings for this module



Supported properties:



- compatible

  Usage:	required

  Value type:	<string>

  Definition:	Should be "qcom,spmi-sdam"



- reg

  Usage:	required

  Value type:	<prop-encoded-array>

  Definition:	The base address and size of the sdam peripheral.



- Data cells

  Usage:	required

  Value type:	Subnodes with bindings described in bindings/nvmem/nvmem.txt.

  Definition:	Cells defining the shared memory usage and configuration.



Example:



	sdam_1: sdam@b000 {

		compatible = "qcom,spmi-sdam";

		reg = <0xb000 0x100>;



		....

		/* Data cells */

		restart_reason: restart@50 {

			reg = <0x50 0x1>;

			bits = <7 2>;

		};

	};



= Data consumers =

Are device nodes which consume nvmem data cells.



Example:



	{

		...

		nvmem-cells = <&restart_reason>;

		nvmem-cell-names = "pmic_restart_reason";

	};