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Commit 60124aae authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy
Browse files

dt-bindings: nvmem: Add DT bindings for QTI SDAM driver 



QTI SDAM driver allows PMIC peripherals to access the shared
memory that is available on QTI PMICs. Add device tree bindings
for it.

This snapshot is taken as of msm-4.14
commit 9bb584ae3a9d ("msm/sde/rotator: Add rev checks for sdmmagpie").

Change-Id: Ia8ce10171f9cfa5249dc69c7edb4d66cb959ca80
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
parent b380e617

Documentation/devicetree/bindings/nvmem/qcom-spmi-sdam.txt

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+49 −0
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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";

	};