Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1cca3bb6 authored by Rama Aparna Mallavarapu's avatar Rama Aparna Mallavarapu
Browse files

dt-bindings: devfreq: Add DT bindings for ARM memlat driver 



This patch adds the DT bindings for devfreq ARM memlat driver.

Change-Id: I3166bb2027de9a32aba63ecdb894a5f9dc85bacc
Signed-off-by: default avatarRama Aparna Mallavarapu <aparnam@codeaurora.org>
parent 8fd39531

Documentation/devicetree/bindings/devfreq/arm-memlat-mon.txt

0 → 100644
+31 −0
Original line number Diff line number Diff line 
ARM CPU memory latency monitor device



arm-memlat-mon is a device that represents the use of the PMU in ARM cores

to measure the parameters for latency driven memory access patterns.



Required properties:

- compatible:			Must be "qcom,arm-memlat-mon"

- qcom,cpulist:			List of CPU phandles to be monitored in a cluster

- qcom,target-dev:		The DT device that corresponds to this master port

- qcom,core-dev-table:		A mapping table of core frequency to a required bandwidth vote at the

				given core frequency.



Optional properties:

- qcom,cachemiss-ev:		The cache miss event that this monitor is supposed to measure.

				Defaults to 0x17 if not specified.

- qcom,inst-ev:			The instruction count event that this monitor is supposed to measure.

				Defaults to 0x08 if not specified.





Example:

	qcom,arm-memlat-mon {

		compatible = "qcom,arm-memlat-mon";

		qcom,cpulist = <&CPU0 &CPU1>;

		qcom,target-dev = <&memlat0>;

		qcom,cachemiss-ev = <0x2A>;

		qcom,inst-ev = <0x08>;

		qcom,core-dev-table =

			<  300000 1525>,

			<  499200 3143>,

			< 1881600 5859>;

	};