From 17adce4d3de1fca7761607d572f4979557f0f604 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 31 Oct 2013 18:20:30 -0700 Subject: [PATCH 012/182] 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: Signed-off-by: Stephen Boyd Signed-off-by: Kumar Gala --- .../devicetree/bindings/arm/msm/qcom,saw2.txt | 35 ++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt 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 0000000..1505fb8 --- /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: + 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: + 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>; + }; -- 1.7.10.4