linux-kernel - [v7,1/2] dt-binding: reset-controller: mediatek: add YAML schemas

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Date:   Fri, 15 Jan 2021 19:23:30 +0800
From:   Crystal Guo <crystal.guo@...iatek.com>
To:     <p.zabel@...gutronix.de>, <robh+dt@...nel.org>,
        <matthias.bgg@...il.com>, <crystal.guo@...iatek.com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <stanley.chu@...iatek.com>, <srv_heupstream@...iatek.com>,
        <seiya.wang@...iatek.com>, <fan.chen@...iatek.com>,
        <linux-mediatek@...ts.infradead.org>, <Yingjoe.Chen@...iatek.com>,
        <s-anna@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <Yidi.Lin@...iatek.com>, <ikjn@...omium.org>
Subject: [v7,1/2] dt-binding: reset-controller: mediatek: add YAML schemas

Add a YAML documentation for Mediatek, which uses ti reset-controller
driver directly. The TI reset controller provides a common reset
management, and is suitable for Mediatek SoCs.

Signed-off-by: Crystal Guo <crystal.guo@...iatek.com>
---
 .../bindings/reset/mediatek-syscon-reset.yaml | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/mediatek-syscon-reset.yaml

diff --git a/Documentation/devicetree/bindings/reset/mediatek-syscon-reset.yaml b/Documentation/devicetree/bindings/reset/mediatek-syscon-reset.yaml
new file mode 100644
index 000000000000..85d241cdb0ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/mediatek-syscon-reset.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/mediatek-syscon-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Reset Controller
+
+maintainers:
+  - Crystal Guo <crystal.guo@...iatek.com>
+
+description:
+  The bindings describe the reset-controller for Mediatek SoCs,
+  which is based on TI reset controller. For more detail, please
+  visit Documentation/devicetree/bindings/reset/ti-syscon-reset.txt.
+
+properties:
+  compatible:
+    const: mediatek,syscon-reset
+
+  '#reset-cells':
+    const: 1
+
+  ti,reset-bits:
+    description: >
+      Contains the reset control register information, please refer to
+      Documentation/devicetree/bindings/reset/ti-syscon-reset.txt.
+
+required:
+  - compatible
+  - '#reset-cells'
+  - ti,reset-bits
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/reset/ti-syscon.h>
+    infracfg: infracfg@...01000 {
+        compatible = "mediatek,mt8192-infracfg", "syscon", "simple-mfd";
+        reg = <0 0x10001000>;
+        #clock-cells = <1>;
+
+        infracfg_rst: reset-controller {
+            compatible = "mediatek,syscon-reset";
+            #reset-cells = <1>;
+            ti,reset-bits = <
+               0x140 15 0x144 15 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE)
+            >;
+        };
+    };
-- 
2.18.0