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Message-ID: <20220829131553.690063-6-nuno.sa@analog.com>
Date: Mon, 29 Aug 2022 15:15:48 +0200
From: Nuno Sá <nuno.sa@...log.com>
To: <linux-kernel@...r.kernel.org>,
Bartosz Golaszewski <brgl@...ev.pl>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
<devicetree@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
Linus Walleij <linus.walleij@...aro.org>,
<linux-input@...r.kernel.org>,
Nuno Sá <nuno.sa@...log.com>
CC: Andy Shevchenko <andy.shevchenko@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Michael Hennerich <michael.hennerich@...log.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 05/10] dt-bindings: input: adp5588: add bindings
Add device tree bindings for the adp5588-keys driver.
Signed-off-by: Nuno Sá <nuno.sa@...log.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
.../bindings/input/adi,adp5588.yaml | 111 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 112 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/adi,adp5588.yaml
diff --git a/Documentation/devicetree/bindings/input/adi,adp5588.yaml b/Documentation/devicetree/bindings/input/adi,adp5588.yaml
new file mode 100644
index 000000000000..26ea66834ae2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/adi,adp5588.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/adi,adp5588.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADP5588 Keypad Controller
+
+maintainers:
+ - Nuno Sá <nuno.sa@...log.com>
+
+description: |
+ Analog Devices Mobile I/O Expander and QWERTY Keypad Controller
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADP5588.pdf
+
+allOf:
+ - $ref: matrix-keymap.yaml#
+ - $ref: input.yaml#
+
+properties:
+ compatible:
+ enum:
+ - adi,adp5587
+ - adi,adp5588
+
+ reg:
+ maxItems: 1
+
+ vcc-supply:
+ description: Supply Voltage Input
+
+ reset-gpios:
+ description:
+ If specified, it will be asserted during driver probe. As the line is
+ active low, it should be marked GPIO_ACTIVE_LOW.
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ gpio-controller:
+ description:
+ This property applies if either keypad,num-rows lower than 8 or
+ keypad,num-columns lower than 10.
+
+ '#gpio-cells':
+ const: 2
+
+ interrupt-controller:
+ description:
+ This property applies if either keypad,num-rows lower than 8 or
+ keypad,num-columns lower than 10.
+
+ '#interrupt-cells':
+ const: 2
+
+ adi,unlock-keys:
+ description:
+ Specifies a maximum of 2 keys that can be used to unlock the keypad.
+ If this property is set, the keyboard will be locked and only unlocked
+ after these keys are pressed. If only one key is set, a double click is
+ needed to unlock the keypad. The value of this property cannot be bigger
+ or equal than keypad,num-rows * keypad,num-columns.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 2
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - keypad,num-rows
+ - keypad,num-columns
+ - linux,keymap
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/input/input.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ keys@34 {
+ compatible = "adi,adp5588";
+ reg = <0x34>;
+
+ vcc-supply = <&vcc>;
+ interrupts = <21 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+
+ keypad,num-rows = <1>;
+ keypad,num-columns = <9>;
+ linux,keymap = <
+ MATRIX_KEY(0x00, 0x00, KEY_1)
+ MATRIX_KEY(0x00, 0x01, KEY_2)
+ MATRIX_KEY(0x00, 0x02, KEY_3)
+ MATRIX_KEY(0x00, 0x03, KEY_4)
+ MATRIX_KEY(0x00, 0x04, KEY_5)
+ MATRIX_KEY(0x00, 0x05, KEY_6)
+ MATRIX_KEY(0x00, 0x06, KEY_7)
+ MATRIX_KEY(0x00, 0x07, KEY_8)
+ MATRIX_KEY(0x00, 0x08, KEY_9)
+ >;
+ };
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 8404c18e6bcf..aa71df8b699b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -556,6 +556,7 @@ M: Michael Hennerich <michael.hennerich@...log.com>
S: Supported
W: http://wiki.analog.com/ADP5588
W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/input/adi,adp5588.yaml
F: drivers/input/keyboard/adp5588-keys.c
ADP8860 BACKLIGHT DRIVER (ADP8860/ADP8861/ADP8863)
--
2.37.2
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