target/linux/ipq806x/patches/0012-devicetree-bindings-Document-qcom-saw2-node.patch

   1 From 17adce4d3de1fca7761607d572f4979557f0f604 Mon Sep 17 00:00:00 2001
   2 From: Stephen Boyd <sboyd@codeaurora.org>
   3 Date: Thu, 31 Oct 2013 18:20:30 -0700
   4 Subject: [PATCH 012/182] devicetree: bindings: Document qcom,saw2 node
   5
   6 The saw2 binding describes the SPM/AVS wrapper hardware used to
   7 control the regulator supplying voltage to the Krait CPUs.
   8
   9 Cc: <devicetree@vger.kernel.org>
  10 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
  11 Signed-off-by: Kumar Gala <galak@codeaurora.org>
  12 ---
  13  .../devicetree/bindings/arm/msm/qcom,saw2.txt      |   35 ++++++++++++++++++++
  14  1 file changed, 35 insertions(+)
  15  create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
  16
  17 --- /dev/null
  18 +++ b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
  19 @@ -0,0 +1,35 @@
  20 +SPM AVS Wrapper 2 (SAW2)
  21 +
  22 +The SAW2 is a wrapper around the Subsystem Power Manager (SPM) and the
  23 +Adaptive Voltage Scaling (AVS) hardware. The SPM is a programmable
  24 +micro-controller that transitions a piece of hardware (like a processor or
  25 +subsystem) into and out of low power modes via a direct connection to
  26 +the PMIC. It can also be wired up to interact with other processors in the
  27 +system, notifying them when a low power state is entered or exited.
  28 +
  29 +PROPERTIES
  30 +
  31 +- compatible:
  32 +       Usage: required
  33 +       Value type: <string>
  34 +       Definition: shall contain "qcom,saw2". A more specific value should be
  35 +                   one of:
  36 +                        "qcom,saw2-v1"
  37 +                        "qcom,saw2-v1.1"
  38 +                        "qcom,saw2-v2"
  39 +                        "qcom,saw2-v2.1"
  40 +
  41 +- reg:
  42 +       Usage: required
  43 +       Value type: <prop-encoded-array>
  44 +       Definition: the first element specifies the base address and size of
  45 +                   the register region. An optional second element specifies
  46 +                   the base address and size of the alias register region.
  47 +
  48 +
  49 +Example:
  50 +
  51 +       regulator@2099000 {
  52 +               compatible = "qcom,saw2";
  53 +               reg = <0x02099000 0x1000>, <0x02009000 0x1000>;
  54 +       };