Evolution-x-devices/kernel_xiaomi_sm8450-devicetrees
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Merge "dt-bindings: devfreq: Add DT bindings for ARM memlat driver"

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qctecmdr
2019-12-01 15:44:39 -08:00
committed by Gerrit - the friendly Code Review server
parent 548a29c251 08c920458a
commit 3eab9b93c5
3 changed files with 34 additions and 1 deletions
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31
bindings/devfreq/arm-memlat-mon.txt Normal file
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@@ -0,0 +1,31 @@
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>;
};

3
bindings/devfreq/bimc-bwmon.txt
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@@ -5,7 +5,8 @@ can be used to measure the bandwidth of read/write traffic from the BIMC
master ports. For example, the CPU subsystem sits on one BIMC master port.
Required properties:
- compatible: Must be "qcom,bimc-bwmon", "qcom,bimc-bwmon2"
- compatible: Must be "qcom,bimc-bwmon", "qcom,bimc-bwmon2" or
"qcom,bimc-bwmon3"
- reg: Pairs of physical base addresses and region sizes of
memory mapped registers.
- reg-names: Names of the bases for the above registers. Expected

1
bindings/devfreq/devfreq-simple-dev.txt
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@@ -14,6 +14,7 @@ Required properties:
Optional properties:
- polling-ms: Polling interval for the device in milliseconds. Default: 50
- governor: Initial governor to user for the device. Default: "performance"
- qcom,prepare-clk: Prepare the device clock during initialization.
Example: