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Message-ID: <20230809191032.820271-2-james.ogletree@cirrus.com>
Date: Wed, 9 Aug 2023 19:10:27 +0000
From: James Ogletree <james.ogletree@...rus.com>
To: <dmitry.torokhov@...il.com>
CC: James Ogletree <james.ogletree@...rus.com>,
Fred Treven <fred.treven@...rus.com>,
Ben Bright <ben.bright@...rus.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
"Lee Jones" <lee@...nel.org>, Jean Delvare <jdelvare@...e.de>,
Arnd Bergmann <arnd@...db.de>,
Wolfram Sang <wsa+renesas@...g-engineering.com>,
Eddie James <eajames@...ux.ibm.com>,
Jacky Bai <ping.bai@....com>,
"Markus Schneider-Pargmann" <msp@...libre.com>,
ChiYuan Huang <cy_huang@...htek.com>,
Jeff LaBundy <jeff@...undy.com>,
Randy Dunlap <rdunlap@...radead.org>,
"Jerome Neanne" <jneanne@...libre.com>,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
<patches@...rus.com>, <linux-input@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 1/2] dt-bindings: input: cirrus,cs40l50: Support for CS40L50
Introduce device tree bindings for the initial commit
of the CS40L50 driver.
Signed-off-by: James Ogletree <james.ogletree@...rus.com>
---
.../bindings/input/cirrus,cs40l50.yaml | 77 +++++++++++++++++++
MAINTAINERS | 8 ++
2 files changed, 85 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..0da7211efdec
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
@@ -0,0 +1,77 @@
+# 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 DSP
+ and Closed-Loop Algorithms
+
+properties:
+ compatible:
+ enum:
+ - cirrus,cs40l50
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ va-supply:
+ description: Regulator for analog voltage
+
+ vp-supply:
+ description: Regulator for peak voltage
+
+ vio-supply:
+ description: Regulator for digital IO voltage
+
+ cirrus,external-boost:
+ description:
+ Bypass the CS40L50 boost converter.
+
+ The amplifier on CS40L50 can be powered internally through the boost
+ converter, or else can be powered using an external supply. If an
+ external supply is used, the boost converter must be bypassed.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/input/input.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>;
+ va-supply = <&vreg>;
+ vp-supply = <&vreg>;
+ vio-supply = <&vreg>;
+ cirrus,external-boost;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 54ef320bb689..2869dd2dbbcf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2081,6 +2081,14 @@ F: arch/arm/boot/compressed/misc-ep93xx.h
F: arch/arm/mach-ep93xx/
F: drivers/iio/adc/ep93xx_adc.c
+CIRRUS LOGIC HAPTICS DRIVER
+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
+
ARM/CLKDEV SUPPORT
M: Russell King <linux@...linux.org.uk>
L: linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
--
2.25.1
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