aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/bcm4908/patches-5.4/082-v5.12-0001-dt-bindings-power-document-Broadcom-s-PMB-binding.patch
blob: c5c1a5dc7e35b82ca168bf0c92f99c81791ae8a7 (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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
From 82853543057f78d8a331272b70bc3f1e8cb0cbf4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 14 Dec 2020 19:07:42 +0100
Subject: [PATCH] dt-bindings: power: document Broadcom's PMB binding
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Broadcom's PMB is power controller used for disabling and enabling SoC
devices.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 .../bindings/power/brcm,bcm-pmb.yaml          | 50 +++++++++++++++++++
 include/dt-bindings/soc/bcm-pmb.h             | 11 ++++
 2 files changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml
 create mode 100644 include/dt-bindings/soc/bcm-pmb.h

--- /dev/null
+++ b/Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/brcm,bcm-pmb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom PMB (Power Management Bus) controller
+
+description: This document describes Broadcom's PMB controller. It supports
+  powering various types of connected devices (e.g. PCIe, USB, SATA).
+
+maintainers:
+  - Rafał Miłecki <rafal@milecki.pl>
+
+properties:
+  compatible:
+    enum:
+      - brcm,bcm4908-pmb
+
+  reg:
+    description: register space of one or more buses
+    maxItems: 1
+
+  big-endian:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: Flag to use for block working in big endian mode.
+
+  "#power-domain-cells":
+    description: cell specifies device ID (see bcm-pmb.h)
+    const: 1
+
+required:
+  - reg
+  - "#power-domain-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/bcm-pmb.h>
+
+    pmb: power-controller@802800e0 {
+        compatible = "brcm,bcm4908-pmb";
+        reg = <0x802800e0 0x40>;
+        #power-domain-cells = <1>;
+    };
+
+    foo {
+        power-domains = <&pmb BCM_PMB_PCIE0>;
+    };
--- /dev/null
+++ b/include/dt-bindings/soc/bcm-pmb.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later OR MIT */
+
+#ifndef __DT_BINDINGS_SOC_BCM_PMB_H
+#define __DT_BINDINGS_SOC_BCM_PMB_H
+
+#define BCM_PMB_PCIE0				0x01
+#define BCM_PMB_PCIE1				0x02
+#define BCM_PMB_PCIE2				0x03
+#define BCM_PMB_HOST_USB			0x04
+
+#endif