linux-kernel - [PATCH 4/7] dt-bindings: Input: introduce new clock vibrator bindings

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Date:   Wed,  4 Dec 2019 19:25:00 -0500
From:   Brian Masney <masneyb@...tation.org>
To:     sboyd@...nel.org, dmitry.torokhov@...il.com, robh+dt@...nel.org
Cc:     mark.rutland@....com, agross@...nel.org,
        bjorn.andersson@...aro.org, mturquette@...libre.com,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH 4/7] dt-bindings: Input: introduce new clock vibrator bindings

Add support for clock-based vibrator devices where the speed can be
controlled by changing the duty cycle.

Signed-off-by: Brian Masney <masneyb@...tation.org>
---
 .../bindings/input/clk-vibrator.yaml          | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/clk-vibrator.yaml

diff --git a/Documentation/devicetree/bindings/input/clk-vibrator.yaml b/Documentation/devicetree/bindings/input/clk-vibrator.yaml
new file mode 100644
index 000000000000..2103a5694fad
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/clk-vibrator.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/input/clk-vibrator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock vibrator
+
+maintainers:
+  - Brian Masney <masneyb@...tation.org>
+
+description: |
+  Support for clock-based vibrator devices where the speed can be controlled
+  by changing the duty cycle.
+
+properties:
+  compatible:
+    const: clk-vibrator
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description: output clock that controls the speed
+    items:
+      - const: core
+
+  clock-frequency: true
+
+  enable-gpios:
+    maxItems: 1
+
+  vcc-supply:
+    description: Regulator that provides power
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - clock-frequency
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,mmcc-msm8974.h>
+    #include <dt-bindings/gpio/gpio.h>
+
+    vibrator {
+        compatible = "clk-vibrator";
+
+        vcc-supply = <&pm8941_l19>;
+
+        clocks = <&mmcc CAMSS_GP1_CLK>;
+        clock-names = "core";
+        clock-frequency = <24000>;
+
+        enable-gpios = <&msmgpio 60 GPIO_ACTIVE_HIGH>;
+
+        pinctrl-names = "default";
+        pinctrl-0 = <&vibrator_pin>;
+    };
-- 
2.21.0