linux-kernel - [PATCH v6 5/8] dt-bindings: timer: hpe,gxp-timer: Creation

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Message-Id: <20220502204050.88316-5-nick.hawkins@hpe.com>
Date:   Mon,  2 May 2022 15:40:47 -0500
From:   nick.hawkins@....com
To:     verdun@....com, nick@....com, joel@....id.au, arnd@...db.de,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Nick Hawkins <nick.hawkins@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org
Subject: [PATCH v6 5/8] dt-bindings: timer: hpe,gxp-timer: Creation

From: Nick Hawkins <nick.hawkins@....com>

Add support for the HPE GXP Timer and Watchdog. There are multiple
timers on the SoC but only one is enabled at this time.

Signed-off-by: Nick Hawkins <nick.hawkins@....com>

---
v6:
* Removed simple-mfd compatible, timer will create watchdog without
  watchdog node.
* Removed timer0 label
* Changed title from HPE GXP TIMER to HPE GXP Timer
* Changed clock name iopclk to iop
* Set additionalProperties to false
* Added space after ',' in the compatible list
* Changed subject to match the log better
* Altered description to take up 75 characters per line
* Changed description to better describe the patch
v5:
* Fix versioning
* Fixed typo time -> timer
v4:
* Made watchdog a child of timer
* Added reference clock
v3:
* Removed maintainer change from patch
* Verified there was no compilation errors
* Added reference code in separate patch of patchset
v2:
* Converted from txt to yaml
---
 .../bindings/timer/hpe,gxp-timer.yaml         | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml

diff --git a/Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml b/Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
new file mode 100644
index 000000000000..d33d90f44d28
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/hpe,gxp-timer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP Timer
+
+maintainers:
+  - Nick Hawkins <nick.hawkins@....com>
+  - Jean-Marie Verdun <verdun@....com>
+
+properties:
+  compatible:
+    const: hpe,gxp-timer
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: iop
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    timer@...00000 {
+        compatible = "hpe,gxp-timer";
+        reg = <0x80 0x16>;
+        interrupts = <0>;
+        interrupt-parent = <&vic0>;
+        clocks = <&iopclk>;
+        clock-names = "iop";
+    };
-- 
2.17.1