linux-kernel - [PATCH v2 1/3] dt-bindings: timer: Add timer for StarFive JH7110 SoC

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Message-ID: <20230320135433.144832-2-xingyu.wu@starfivetech.com>
Date:   Mon, 20 Mar 2023 21:54:31 +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>, Conor Dooley <conor@...nel.org>
Subject: [PATCH v2 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>
---
 .../bindings/timer/starfive,jh7110-timer.yaml | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/starfive,jh7110-timer.yaml

diff --git a/Documentation/devicetree/bindings/timer/starfive,jh7110-timer.yaml b/Documentation/devicetree/bindings/timer/starfive,jh7110-timer.yaml
new file mode 100644
index 000000000000..24b34618f2c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/starfive,jh7110-timer.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/starfive,jh7110-timer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Timer
+maintainers:
+  - Xingyu Wu <xingyu.wu@...rfivetech.com>
+  - Samin Guo <samin.guo@...rfivetech.com>
+
+description:
+  This timer has four free-running 32 bit counters in StarFive JH7110 SoC.
+  And each channel(counter) triggers an interrupt when timeout. They support
+  one-shot mode and continuous-run mode.
+
+properties:
+  compatible:
+    const: starfive,jh7110-timer
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: channel 0
+      - description: channel 1
+      - description: channel 2
+      - description: channel 3
+
+  clocks:
+    items:
+      - description: timer APB
+      - description: channel 0
+      - description: channel 1
+      - description: channel 2
+      - description: channel 3
+
+  clock-names:
+    items:
+      - const: apb
+      - const: ch0
+      - const: ch1
+      - const: ch2
+      - const: ch3
+
+  resets:
+    items:
+      - description: timer APB
+      - description: channel 0
+      - description: channel 1
+      - description: channel 2
+      - description: channel 3
+
+  reset-names:
+    items:
+      - const: apb
+      - const: ch0
+      - const: ch1
+      - const: ch2
+      - const: ch3
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+
+additionalProperties: false
+
+examples:
+  - |
+    timer@...50000 {
+        compatible = "starfive,jh7110-timer";
+        reg = <0x13050000 0x10000>;
+        interrupts = <69>, <70>, <71> ,<72>;
+        clocks = <&clk 124>,
+                 <&clk 125>,
+                 <&clk 126>,
+                 <&clk 127>,
+                 <&clk 128>;
+        clock-names = "apb", "ch0", "ch1",
+                      "ch2", "ch3";
+        resets = <&rst 117>,
+                 <&rst 118>,
+                 <&rst 119>,
+                 <&rst 120>,
+                 <&rst 121>;
+        reset-names = "apb", "ch0", "ch1",
+                      "ch2", "ch3";
+    };
+
-- 
2.25.1