linux-kernel - [PATCH v5 2/5] dt-bindings: input: cirrus,cs40l50: Add initial DT binding

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Message-ID: <20240104223643.876292-3-jogletre@opensource.cirrus.com>
Date: Thu, 4 Jan 2024 22:36:35 +0000
From: James Ogletree <jogletre@...nsource.cirrus.com>
To: 
CC: James Ogletree <jogletre@...nsource.cirrus.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>,
        James Ogletree <james.ogletree@...rus.com>,
        Fred Treven <fred.treven@...rus.com>,
        Ben Bright <ben.bright@...rus.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Simon Trimmer <simont@...nsource.cirrus.com>,
        Charles Keepax
	<ckeepax@...nsource.cirrus.com>,
        Richard Fitzgerald
	<rf@...nsource.cirrus.com>,
        Lee Jones <lee@...nel.org>, Liam Girdwood
	<lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, Jaroslav Kysela
	<perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        James Schulman
	<james.schulman@...rus.com>,
        David Rhodes <david.rhodes@...rus.com>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Alexandre Belloni
	<alexandre.belloni@...tlin.com>,
        Jacky Bai <ping.bai@....com>, Jeff LaBundy
	<jeff@...undy.com>,
        Peng Fan <peng.fan@....com>, Weidong Wang
	<wangweidong.a@...nic.com>,
        Arnd Bergmann <arnd@...db.de>,
        Herve Codina
	<herve.codina@...tlin.com>,
        Shenghao Ding <13916275206@....com>, Ryan Lee
	<ryans.lee@...log.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ajye Huang
	<ajye_huang@...pal.corp-partner.google.com>,
        Maxim Kochetkov
	<fido_max@...ox.ru>,
        Shuming Fan <shumingf@...ltek.com>,
        "open list:CIRRUS
 LOGIC HAPTIC DRIVERS" <patches@...nsource.cirrus.com>,
        "open list:INPUT
 (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN)..." <linux-input@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open
 list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..."
	<linux-sound@...r.kernel.org>,
        "moderated list:CIRRUS LOGIC AUDIO CODEC
 DRIVERS" <alsa-devel@...a-project.org>
Subject: [PATCH v5 2/5] dt-bindings: input: cirrus,cs40l50: Add initial DT binding

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

Add a YAML DT binding document for this device.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: James Ogletree <jogletre@...nsource.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@...rus.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 dd5de540ec0b..b71017a187f8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4933,6 +4933,14 @@ 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@...rus.com>
+M:	Fred Treven <fred.treven@...rus.com>
+M:	Ben Bright <ben.bright@...rus.com>
+L:	patches@...nsource.cirrus.com
+S:	Supported
+F:	Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
+
 CIRRUS LOGIC DSP FIRMWARE DRIVER
 M:	Simon Trimmer <simont@...nsource.cirrus.com>
 M:	Charles Keepax <ckeepax@...nsource.cirrus.com>
-- 
2.25.1