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author | Stephen Boyd <sboyd@codeaurora.org> | 2013-10-31 18:20:30 -0700 |
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committer | Kumar Gala <galak@codeaurora.org> | 2014-02-11 15:00:39 -0600 |
commit | 4c6ede21cd0d4df0c68d4203fa63bb17e29d2e93 (patch) | |
tree | 0da9b5b70724f887a1516747b8d4d184b7a0c93e /Documentation | |
parent | 007290cb3db0bba6a7f441b3dc849b365b0d54b1 (diff) | |
download | linux-4c6ede21cd0d4df0c68d4203fa63bb17e29d2e93.tar.bz2 |
devicetree: bindings: Document qcom,saw2 node
The saw2 binding describes the SPM/AVS wrapper hardware used to
control the regulator supplying voltage to the Krait CPUs.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt new file mode 100644 index 000000000000..1505fb8e131a --- /dev/null +++ b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt @@ -0,0 +1,35 @@ +SPM AVS Wrapper 2 (SAW2) + +The SAW2 is a wrapper around the Subsystem Power Manager (SPM) and the +Adaptive Voltage Scaling (AVS) hardware. The SPM is a programmable +micro-controller that transitions a piece of hardware (like a processor or +subsystem) into and out of low power modes via a direct connection to +the PMIC. It can also be wired up to interact with other processors in the +system, notifying them when a low power state is entered or exited. + +PROPERTIES + +- compatible: + Usage: required + Value type: <string> + Definition: shall contain "qcom,saw2". A more specific value should be + one of: + "qcom,saw2-v1" + "qcom,saw2-v1.1" + "qcom,saw2-v2" + "qcom,saw2-v2.1" + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: the first element specifies the base address and size of + the register region. An optional second element specifies + the base address and size of the alias register region. + + +Example: + + regulator@2099000 { + compatible = "qcom,saw2"; + reg = <0x02099000 0x1000>, <0x02009000 0x1000>; + }; |