diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2015-01-30 17:40:51 +0000 |
|---|---|---|
| committer | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2015-01-30 17:40:51 +0000 |
| commit | 7532baeca4201a1d4f44d2daef2506a9695d3049 (patch) | |
| tree | b7535887b8608c4191e012b32cb997c6e2edb7af /Documentation | |
| parent | bad6eeaa500ba9d3cce4c23a0c47c7aea298fafb (diff) | |
| parent | afa9dec717d6a8c6b1aba53d5282672d567917c3 (diff) | |
Merge branch 'tracking-qcomlt-rpm' into integration-linux-qcomlt
* tracking-qcomlt-rpm:
WIP:clk : qcom: Add rpm clock controller.
WIP:mfd:qcom-rpm: Add qcom_rpm_read functionality
regulator: qcom-rpm: Add missing state flag in call to RPM
mfd: qcom-rpm: Driver for the Qualcomm RPM
mfd: devicetree: bindings: Add Qualcomm RPM DT binding
Conflicts:
drivers/clk/qcom/Kconfig
drivers/clk/qcom/Makefile
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/qcom-rpm.txt | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/qcom-rpm.txt b/Documentation/devicetree/bindings/mfd/qcom-rpm.txt new file mode 100644 index 000000000000..85e31980017a --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/qcom-rpm.txt @@ -0,0 +1,70 @@ +Qualcomm Resource Power Manager (RPM) + +This driver is used to interface with the Resource Power Manager (RPM) found in +various Qualcomm platforms. The RPM allows each component in the system to vote +for state of the system resources, such as clocks, regulators and bus +frequencies. + +- compatible: + Usage: required + Value type: <string> + Definition: must be one of: + "qcom,rpm-apq8064" + "qcom,rpm-msm8660" + "qcom,rpm-msm8960" + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: base address and size of the RPM's message ram + +- interrupts: + Usage: required + Value type: <prop-encoded-array> + Definition: three entries specifying the RPM's: + 1. acknowledgement interrupt + 2. error interrupt + 3. wakeup interrupt + +- interrupt-names: + Usage: required + Value type: <string-array> + Definition: must be the three strings "ack", "err" and "wakeup", in order + +- #address-cells: + Usage: required + Value type: <u32> + Definition: must be 1 + +- #size-cells: + Usage: required + Value type: <u32> + Definition: must be 0 + +- qcom,ipc: + Usage: required + Value type: <prop-encoded-array> + + Definition: three entries specifying the outgoing ipc bit used for + signaling the RPM: + - phandle to a syscon node representing the apcs registers + - u32 representing offset to the register within the syscon + - u32 representing the ipc bit within the register + + += EXAMPLE + + #include <dt-bindings/mfd/qcom-rpm.h> + + rpm@108000 { + compatible = "qcom,rpm-msm8960"; + reg = <0x108000 0x1000>; + qcom,ipc = <&apcs 0x8 2>; + + interrupts = <0 19 0>, <0 21 0>, <0 22 0>; + interrupt-names = "ack", "err", "wakeup"; + + #address-cells = <1>; + #size-cells = <0>; + }; + |