[PATCH v3 1/4] dt-bindings: Add bindings for the Analog Devices ADP5585

[Laurent Pinchart]

The ADP5585 is a 10/11 input/output port expander with a built in keypad
matrix decoder, programmable logic, reset generator, and PWM generator.
These bindings model the device as an MFD, and support the GPIO expander
and PWM functions.

These bindings support the GPIO and PWM functions.

Drop the existing adi,adp5585 and adi,adp5585-02 compatible strings from
trivial-devices.yaml. They have been added there by mistake as the
driver that was submitted at the same time used different compatible
strings. We can take them over safely.

Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
I've limited the bindings to GPIO and PWM as I lack hardware to design,
implement and test the rest of the features the chip supports.

Changes since v2:

- Drop gpio property from required
- Drop second example

Changes since v1:

- Squash "dt-bindings: trivial-devices: Drop adi,adp5585 and
  adi,adp5585-02" into this patch
- Merge child nodes into parent node
---
 .../devicetree/bindings/mfd/adi,adp5585.yaml  | 90 +++++++++++++++++++
 .../devicetree/bindings/trivial-devices.yaml  |  4 -
 MAINTAINERS                                   |  7 ++
 3 files changed, 97 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/adi,adp5585.yaml

diff --git a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
new file mode 100644
index 000000000000..c484a263dea7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/adi,adp5585.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADP5585 Keypad Decoder and I/O Expansion
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
+
+description:
+  The ADP5585 is a 10/11 input/output port expander with a built in keypad
+  matrix decoder, programmable logic, reset generator, and PWM generator.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - adi,adp5585-00  # Default
+          - adi,adp5585-01  # 11 GPIOs
+          - adi,adp5585-02  # No pull-up resistors by default on special pins
+          - adi,adp5585-03  # Alternate I2C address
+          - adi,adp5585-04  # Pull-down resistors on all pins by default
+      - const: adi,adp5585
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply: true
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+  gpio-reserved-ranges: true
+
+  "#pwm-cells":
+    const: 3
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - "#gpio-cells"
+  - "#pwm-cells"
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: adi,adp5585-01
+    then:
+      properties:
+        gpio-reserved-ranges: false
+    else:
+      properties:
+        gpio-reserved-ranges:
+          items:
+            - const: 5
+            - const: 1
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mfd@34 {
+            compatible = "adi,adp5585-00", "adi,adp5585";
+            reg = <0x34>;
+
+            vdd-supply = <&reg_3v3>;
+
+            gpio-controller;
+            #gpio-cells = <2>;
+            gpio-reserved-ranges = <5 1>;
+
+            #pwm-cells = <3>;
+        };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 0a419453d183..91e62df4b296 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -39,10 +39,6 @@ properties:
             # AD5110 - Nonvolatile Digital Potentiometer
           - adi,ad5110
             # Analog Devices ADP5585 Keypad Decoder and I/O Expansion
-          - adi,adp5585
-            # Analog Devices ADP5585 Keypad Decoder and I/O Expansion with support for Row5
-          - adi,adp5585-02
-            # Analog Devices ADP5589 Keypad Decoder and I/O Expansion
           - adi,adp5589
             # Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher
           - adi,lt7182s
diff --git a/MAINTAINERS b/MAINTAINERS
index d6c90161c7bf..3016b003ead3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -526,6 +526,13 @@ F:	drivers/leds/leds-adp5520.c
 F:	drivers/mfd/adp5520.c
 F:	drivers/video/backlight/adp5520_bl.c
 
+ADP5585 GPIO EXPANDER, PWM AND KEYPAD CONTROLLER DRIVER
+M:	Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
+L:	linux-gpio@xxxxxxxxxxxxxxx
+L:	linux-pwm@xxxxxxxxxxxxxxx
+S:	Maintained
+F:	Documentation/devicetree/bindings/*/adi,adp5585*.yaml
+
 ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
 M:	Michael Hennerich <michael.hennerich@xxxxxxxxxx>
 S:	Supported
-- 
Regards,

Laurent Pinchart