target/linux/mediatek/patches/0007-dt-bindings-soc-Add-documentation-for-the-MediaTek-S.patch

   1 From 06a1fd8a198771abc7c5badcf43a49a715ba4c76 Mon Sep 17 00:00:00 2001
   2 From: Sascha Hauer <s.hauer@pengutronix.de>
   3 Date: Tue, 9 Jun 2015 10:47:00 +0200
   4 Subject: [PATCH 07/76] dt-bindings: soc: Add documentation for the MediaTek
   5  SCPSYS unit
   6
   7 This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs.
   8
   9 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
  10 ---
  11  .../devicetree/bindings/soc/mediatek/scpsys.txt    |   34 ++++++++++++++++++++
  12  1 file changed, 34 insertions(+)
  13  create mode 100644 Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
  14
  15 --- /dev/null
  16 +++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
  17 @@ -0,0 +1,34 @@
  18 +MediaTek SCPSYS
  19 +===============
  20 +
  21 +The System Control Processor System (SCPSYS) has several power management
  22 +related tasks in the system. The tasks include thermal measurement, dynamic
  23 +voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control.
  24 +The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power
  25 +domain control.
  26 +
  27 +The driver implements the Generic PM domain bindings described in
  28 +power/power_domain.txt. It provides the power domains defined in
  29 +include/dt-bindings/power/mt8173-power.h.
  30 +
  31 +Required properties:
  32 +- compatible: Must be "mediatek,mt8173-scpsys"
  33 +- #power-domain-cells: Must be 1
  34 +- reg: Address range of the SCPSYS unit
  35 +- infracfg: must contain a phandle to the infracfg controller
  36 +
  37 +Example:
  38 +
  39 +       scpsys: scpsys@10006000 {
  40 +               #power-domain-cells = <1>;
  41 +               compatible = "mediatek,mt8173-scpsys";
  42 +               reg = <0 0x10006000 0 0x1000>;
  43 +               infracfg = <&infracfg>;
  44 +       };
  45 +
  46 +Example consumer:
  47 +
  48 +       afe: mt8173-afe-pcm@11220000 {
  49 +               compatible = "mediatek,mt8173-afe-pcm";
  50 +               power-domains = <&scpsys MT8173_POWER_DOMAIN_AUDIO>;
  51 +       };