[PATCH v4 1/4] dt-bindings: input: cirrus,cs40l50: Add initial DT binding

[James Ogletree <james.ogletree@opensource.cirrus.com>]

From: James Ogletree <james.ogletree@cirrus.com>

The CS40L50 is a haptic driver with waveform memory,
integrated DSP, and closed-loop algorithms.

Add a YAML DT binding document for this device.

Signed-off-by: James Ogletree <james.ogletree@cirrus.com>
---
 .../bindings/input/cirrus,cs40l50.yaml        | 70 +++++++++++++++++++
 MAINTAINERS                                   |  8 +++
 2 files changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml

diff --git a/Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml b/Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
new file mode 100644
index 000000000000..6a5bdafed56b
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/cirrus,cs40l50.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS40L50 Advanced Haptic Driver
+
+maintainers:
+  - James Ogletree <james.ogletree@cirrus.com>
+
+description:
+  CS40L50 is a haptic driver with waveform memory,
+  integrated DSP, and closed-loop algorithms.
+
+properties:
+  compatible:
+    enum:
+      - cirrus,cs40l50
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  va-supply:
+    description: Power supply for internal analog circuits.
+
+  vp-supply:
+    description: Power supply for always-on circuits.
+
+  vio-supply:
+    description: Power supply for digital input/output.
+
+  vamp-supply:
+    description: Power supply for the Class D amplifier.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - reset-gpios
+  - vp-supply
+  - vio-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      haptic-driver@34 {
+        compatible = "cirrus,cs40l50";
+        reg = <0x34>;
+        interrupt-parent = <&gpio>;
+        interrupts = <113 IRQ_TYPE_LEVEL_LOW>;
+        reset-gpios = <&gpio 112 GPIO_ACTIVE_LOW>;
+        vp-supply = <&vreg>;
+        vio-supply = <&vreg>;
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 046ff06ff97f..28f0ca9324b3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4963,6 +4963,14 @@ F:	sound/pci/hda/cs*
 F:	sound/pci/hda/hda_cs_dsp_ctl.*
 F:	sound/soc/codecs/cs*
 
+CIRRUS LOGIC HAPTIC DRIVERS
+M:	James Ogletree <james.ogletree@cirrus.com>
+M:	Fred Treven <fred.treven@cirrus.com>
+M:	Ben Bright <ben.bright@cirrus.com>
+L:	patches@opensource.cirrus.com
+S:	Supported
+F:	Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
+
 CIRRUS LOGIC DSP FIRMWARE DRIVER
 M:	Simon Trimmer <simont@opensource.cirrus.com>
 M:	Charles Keepax <ckeepax@opensource.cirrus.com>
-- 
2.25.1