30bc3aa5c4
The IPQ8064 SoC has several RPM-controlled resources, an NSS fabrick clock and four regulator resources. Provide definitions for them. Signed-off-by: Josh Cartwright <joshc@codeaurora.org> [sboyd@codeaurora.org: Drop regulator part of binding] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
72 lines
1.7 KiB
Plaintext
72 lines
1.7 KiB
Plaintext
Qualcomm Resource Power Manager (RPM)
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This driver is used to interface with the Resource Power Manager (RPM) found in
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various Qualcomm platforms. The RPM allows each component in the system to vote
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for state of the system resources, such as clocks, regulators and bus
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frequencies.
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be one of:
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"qcom,rpm-apq8064"
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"qcom,rpm-msm8660"
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"qcom,rpm-msm8960"
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"qcom,rpm-ipq8064"
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- reg:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: base address and size of the RPM's message ram
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- interrupts:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: three entries specifying the RPM's:
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1. acknowledgement interrupt
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2. error interrupt
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3. wakeup interrupt
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- interrupt-names:
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Usage: required
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Value type: <string-array>
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Definition: must be the three strings "ack", "err" and "wakeup", in order
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- #address-cells:
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Usage: required
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Value type: <u32>
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Definition: must be 1
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- #size-cells:
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Usage: required
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Value type: <u32>
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Definition: must be 0
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- qcom,ipc:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: three entries specifying the outgoing ipc bit used for
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signaling the RPM:
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- phandle to a syscon node representing the apcs registers
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- u32 representing offset to the register within the syscon
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- u32 representing the ipc bit within the register
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= EXAMPLE
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#include <dt-bindings/mfd/qcom-rpm.h>
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rpm@108000 {
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compatible = "qcom,rpm-msm8960";
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reg = <0x108000 0x1000>;
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qcom,ipc = <&apcs 0x8 2>;
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interrupts = <0 19 0>, <0 21 0>, <0 22 0>;
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interrupt-names = "ack", "err", "wakeup";
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#address-cells = <1>;
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#size-cells = <0>;
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};
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