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Groups > linux.kernel > #1161131

[PATCH 2/5] dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit

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This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 .../devicetree/bindings/soc/mediatek/scpsys.txt    | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/mediatek/scpsys.txt

diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
new file mode 100644
index 0000000..87f2091
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
@@ -0,0 +1,34 @@
+MediaTek SCPSYS
+===============
+
+The System Control Processor System (SCPSYS) has several power management
+related tasks in the system. The tasks include thermal measurement, dynamic
+voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control.
+The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power
+domain control.
+
+The driver implements the Generic PM domain bindings described in
+power/power_domain.txt. It provides the power domains defined in
+include/dt-bindings/power/mt8173-power.h.
+
+Required properties:
+- compatible: Must be "mediatek,mt8173-scpsys"
+- #power-domain-cells: Must be 1
+- reg: Address range of the SCPSYS unit
+- infracfg: must contain a phandle to the infracfg controller
+
+Example:
+
+	scpsys: scpsys@10006000 {
+		#power-domain-cells = <1>;
+		compatible = "mediatek,mt8173-scpsys";
+		reg = <0 0x10006000 0 0x1000>;
+		infracfg = <&infracfg>;
+	};
+
+Example consumer:
+
+	afe: mt8173-afe-pcm@11220000 {
+		compatible = "mediatek,mt8173-afe-pcm";
+		power-domains = <&scpsys MT8173_POWER_DOMAIN_AUDIO>;
+	};
-- 
2.1.4

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[PATCH v4] Mediatek SCPSYS power domain support Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-09 10:50 +0200
  [PATCH 5/5] ARM64: MediaTek MT8173: Add SCPSYS device node Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-09 10:50 +0200
    Re: [PATCH 5/5] ARM64: MediaTek MT8173: Add SCPSYS device node Kevin Hilman <khilman@kernel.org> - 2015-06-16 20:20 +0200
  [PATCH 4/5] ARM64: MediaTek: Add generic pm domain support Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-09 10:50 +0200
  [PATCH 2/5] dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-09 10:50 +0200
  [PATCH 3/5] soc: Mediatek: Add SCPSYS power domain driver Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-09 10:50 +0200
    Re: [PATCH 3/5] soc: Mediatek: Add SCPSYS power domain driver Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-15 09:50 +0200
  [PATCH 1/5] soc: mediatek: Add infracfg misc driver support Sascha Hauer <s.hauer@pengutronix.de> - 2015-06-09 10:50 +0200

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