linux-kernel - [PATCH v8 1/2] Add DT bindings YAML schema for PWM fan controller of LGM SoC

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Message-Id: <cb86a768550b592b5fc4713bd07689bf84ba044b.1597898872.git.rahul.tanwar@linux.intel.com>
Date:   Thu, 20 Aug 2020 12:50:45 +0800
From:   Rahul Tanwar <rahul.tanwar@...ux.intel.com>
To:     u.kleine-koenig@...gutronix.de, linux-pwm@...r.kernel.org,
        lee.jones@...aro.org
Cc:     thierry.reding@...il.com, p.zabel@...gutronix.de,
        robh+dt@...nel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, andriy.shevchenko@...el.com,
        songjun.Wu@...el.com, cheol.yong.kim@...el.com,
        qi-ming.wu@...el.com, rahul.tanwar.linux@...il.com,
        rtanwar@...linear.com, Rahul Tanwar <rahul.tanwar@...ux.intel.com>
Subject: [PATCH v8 1/2] Add DT bindings YAML schema for PWM fan controller of LGM SoC

Intel's LGM(Lightning Mountain) SoC contains a PWM fan controller
which is only used to control the fan attached to the system. This
PWM controller does not have any other consumer other than fan.
Add DT bindings documentation for this PWM fan controller.

Signed-off-by: Rahul Tanwar <rahul.tanwar@...ux.intel.com>
---
 .../devicetree/bindings/pwm/intel,lgm-pwm.yaml     | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/intel,lgm-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/intel,lgm-pwm.yaml b/Documentation/devicetree/bindings/pwm/intel,lgm-pwm.yaml
new file mode 100644
index 000000000000..11a606536169
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/intel,lgm-pwm.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/intel,lgm-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LGM SoC PWM fan controller
+
+maintainers:
+  - Rahul Tanwar <rtanwar@...linear.com>
+
+properties:
+  compatible:
+    const: intel,lgm-pwm
+
+  reg:
+    maxItems: 1
+
+  "#pwm-cells":
+    const: 2
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    pwm: pwm@...00000 {
+        compatible = "intel,lgm-pwm";
+        reg = <0xe0d00000 0x30>;
+        #pwm-cells = <2>;
+        clocks = <&cgu0 126>;
+        resets = <&rcu0 0x30 21>;
+    };
-- 
2.11.0