blob: f7bdbd6e0c8d7ef0e4ecd8cf85de6cb6c1af9cf8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
From 06a1fd8a198771abc7c5badcf43a49a715ba4c76 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Tue, 9 Jun 2015 10:47:00 +0200
Subject: [PATCH 07/76] dt-bindings: soc: Add documentation for the MediaTek
SCPSYS unit
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>;
+ };
--
1.7.10.4
|
