2024-09-09 08:52:07 +00:00
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* RPM Sleep Stats
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RPM maintains sleep data in the RPM RAM. A device tree node is added
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that will hold the address of the RPM RAM from where sleep stats are read.
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Additionally a version number is added to distinguish the type of data
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structure being read from the RAM.
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2024-09-09 08:57:42 +00:00
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RPM maintains free heap space availability in the RPM RAM. RPM free heap space
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value is required for debugging purpose.
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2024-09-09 08:52:07 +00:00
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The required properties for rpm-stats are:
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- compatible: "qcom,rpm-stats"
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- reg: The address on the RPM RAM from where stats are read.
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2024-09-09 08:57:42 +00:00
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Second register(optional) specifies the offset of the rpm
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stats start address pointer. If the second register is
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available, the offset value read is added to the first
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register address to read the stats.
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Third register(optional) specifies the offset of the rpm
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free heap space value.
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2024-09-09 08:52:07 +00:00
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- reg-names: Name given the register holding address.
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- qcom,sleep-stats-version: Version number.
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2024-09-09 08:57:42 +00:00
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Example 1:
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2024-09-09 08:52:07 +00:00
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qcom,rpm-stats@fc19dbd0 {
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compatible = "qcom,rpm-stats";
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reg = <0xfc19dbd0 0x1000>;
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reg-names = "phys_addr_base";
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qcom,sleep-stats-version = <2>;
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};
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2024-09-09 08:57:42 +00:00
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Example 2:
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qcom,rpm-stats@fc000000 {
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compatible = "qcom,rpm-stats";
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reg = <0xfc000000 0x1000>,
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<0xfc190014 0x4>;
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reg-names = "phys_addr_base";
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qcom,sleep-stats-version = <2>;
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};
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