linux-kernel - [PATCH v2 2/2] dt-bindings: hpet: add loongson2k hpet binding

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Message-Id: <20221008063710.12241-2-zhuyinbo@loongson.cn>
Date:   Sat,  8 Oct 2022 14:37:10 +0800
From:   Yinbo Zhu <zhuyinbo@...ngson.cn>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Jianmin Lv <lvjianmin@...ngson.cn>,
        Yun Liu <liuyun@...ngson.cn>,
        Yang Li <yang.lee@...ux.alibaba.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        loongarch@...ts.linux.dev, Yinbo Zhu <zhuyinbo@...ngson.cn>
Subject: [PATCH v2 2/2] dt-bindings: hpet: add loongson2k hpet binding

Add the loongson2k High Precision Event Timer (HPET) binding
with DT schema format using json-schema.

Signed-off-by: Yinbo Zhu <zhuyinbo@...ngson.cn>
---
Change in v2:
		1. Drop the  "hpet0" label.
		2. Modify the hpet node name to timer.

 .../bindings/timer/loongson,ls2k-hpet.yaml    | 41 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 42 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml

diff --git a/Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml b/Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml
new file mode 100644
index 000000000000..1805f2608de8
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/loongson,ls2k-hpet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson2k High Precision Event Timer (HPET)
+
+maintainers:
+  - Yinbo Zhu <zhuyinbo@...ngson.cn>
+
+properties:
+  compatible:
+    const: loongson,ls2k-hpet
+
+  reg:
+    maxItems: 1
+
+  clock-frequency: true
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clock-frequency
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    timer@...24000 {
+        compatible = "loongson,ls2k-hpet";
+        reg = <0x1fe24000 0x15f>;
+        clock-frequency = <125000000>;
+        interrupt-parent = <&liointc0>;
+        interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index c2e8eac61642..a162b6fba6fe 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11911,6 +11911,7 @@ LOONGSON2 SOC SERIES HPET DRIVER
 M:	Yinbo Zhu <zhuyinbo@...ngson.cn>
 L:	linux-kernel@...r.kernel.org
 S:	Maintained
+F:	Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml
 F:	drivers/clocksource/loongson2_hpet.c
 
 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
-- 
2.31.1