linux-kernel - [PATCH v1 1/3] dt-bindings: timer: Add timer for StarFive JH7110 SoC

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Message-ID: <20221223094801.181315-2-xingyu.wu@starfivetech.com>
Date:   Fri, 23 Dec 2022 17:47:59 +0800
From:   Xingyu Wu <xingyu.wu@...rfivetech.com>
To:     <linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        "Daniel Lezcano" <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Xingyu Wu <xingyu.wu@...rfivetech.com>,
        Samin Guo <samin.guo@...rfivetech.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 1/3] dt-bindings: timer: Add timer for StarFive JH7110 SoC

Add bindings for the timer on the JH7110
RISC-V SoC by StarFive Technology Ltd.

Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>
---
 .../timer/starfive,jh7110-timers.yaml         | 105 ++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/starfive,jh7110-timers.yaml

diff --git a/Documentation/devicetree/bindings/timer/starfive,jh7110-timers.yaml b/Documentation/devicetree/bindings/timer/starfive,jh7110-timers.yaml
new file mode 100644
index 000000000000..fe58dc056313
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/starfive,jh7110-timers.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/starfive,jh7110-timers.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive Timers
+
+maintainers:
+  - Samin Guo <samin.guo@...rfivetech.com>
+  - Xingyu Wu <xingyu.wu@...rfivetech.com>
+
+properties:
+  compatible:
+    const: starfive,jh7110-timers
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: timer channel 0 interrupt
+      - description: timer channel 1 interrupt
+      - description: timer channel 2 interrupt
+      - description: timer channel 3 interrupt
+
+  interrupt-names:
+    items:
+      - const: timer0
+      - const: timer1
+      - const: timer2
+      - const: timer3
+
+  clocks:
+    items:
+      - description: timer channel 0 clock
+      - description: timer channel 1 clock
+      - description: timer channel 2 clock
+      - description: timer channel 3 clock
+      - description: APB clock
+
+  clock-names:
+    items:
+      - const: timer0
+      - const: timer1
+      - const: timer2
+      - const: timer3
+      - const: apb
+
+  resets:
+    items:
+      - description: timer channel 0 reset
+      - description: timer channel 1 reset
+      - description: timer channel 2 reset
+      - description: timer channel 3 reset
+      - description: APB reset
+
+  reset-names:
+    items:
+      - const: timer0
+      - const: timer1
+      - const: timer2
+      - const: timer3
+      - const: apb
+
+  clock-frequency:
+    description: The frequency of the clock that drives the counter, in Hz.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - clock-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    timer@...50000 {
+        compatible = "starfive,jh7110-timers";
+        reg = <0x13050000 0x10000>;
+        interrupts = <69>, <70>, <71> ,<72>;
+        interrupt-names = "timer0", "timer1", "timer2", "timer3";
+        clocks = <&clk 125>,
+                 <&clk 126>,
+                 <&clk 127>,
+                 <&clk 128>,
+                 <&clk 124>;
+        clock-names = "timer0", "timer1",
+                      "timer2", "timer3", "apb";
+        resets = <&rst 118>,
+                 <&rst 119>,
+                 <&rst 120>,
+                 <&rst 121>,
+                 <&rst 117>;
+        reset-names = "timer0", "timer1",
+                      "timer2", "timer3", "apb";
+        clock-frequency = <24000000>;
+    };
+
-- 
2.25.1