dt-bindings: Add snapshot for 5.3-rc4

Add the device-tree bindings' snapshot from tmp-9855ec2fd422 for
5.3-rc4.

Change-Id: I25b0ac9b29c0347f557b87094ede86370a89a0f2

bindings/gpio/gpio-davinci.txt

@@ -5,6 +5,7 @@ Required Properties:
 			"ti,keystone-gpio": for Keystone 2 66AK2H/K, 66AK2L,
 						66AK2E SoCs
 			"ti,k2g-gpio", "ti,keystone-gpio": for 66AK2G
+			"ti,am654-gpio", "ti,keystone-gpio": for TI K3 AM654
 
 - reg: Physical base address of the controller and the size of memory mapped
        registers.
@@ -145,3 +146,20 @@ gpio0: gpio@260bf00 {
 	ti,ngpio = <32>;
 	ti,davinci-gpio-unbanked = <32>;
 };
+
+Example for K3 AM654:
+
+wkup_gpio0: wkup_gpio0@42110000 {
+	compatible = "ti,am654-gpio", "ti,keystone-gpio";
+	reg = <0x42110000 0x100>;
+	gpio-controller;
+	#gpio-cells = <2>;
+	interrupt-parent = <&intr_wkup_gpio>;
+	interrupts = <59 128>, <59 129>, <59 130>, <59 131>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	ti,ngpio = <56>;
+	ti,davinci-gpio-unbanked = <0>;
+	clocks = <&k3_clks 59 0>;
+	clock-names = "gpio";
+};

bindings/gpio/pl061-gpio.txt

@@ -1,10 +0,0 @@
-ARM PL061 GPIO controller
-
-Required properties:
-- compatible : "arm,pl061", "arm,primecell"
-- #gpio-cells : Should be two. The first cell is the pin number and the
-  second cell is used to specify optional parameters:
-  - bit 0 specifies polarity (0 for normal, 1 for inverted)
-- gpio-controller : Marks the device node as a GPIO controller.
-- interrupts : Interrupt mapping for GPIO IRQ.
-- gpio-ranges : Interaction with the PINCTRL subsystem.

bindings/gpio/pl061-gpio.yaml

@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/pl061-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM PL061 GPIO controller
+
+maintainers:
+  - Linus Walleij <[email protected]>
+  - Rob Herring <[email protected]>
+
+# We need a select here so we don't match all nodes with 'arm,primecell'
+select:
+  properties:
+    compatible:
+      contains:
+        const: arm,pl061
+  required:
+    - compatible
+
+properties:
+  $nodename:
+    pattern: "^gpio@[0-9a-f]+$"
+
+  compatible:
+    items:
+      - const: arm,pl061
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    oneOf:
+      - maxItems: 1
+      - maxItems: 8
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  clocks:
+    maxItems: 1
+
+  clock-names: true
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-controller: true
+
+  gpio-ranges:
+    maxItems: 8
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-controller
+  - "#interrupt-cells"
+  - clocks
+  - "#gpio-cells"
+  - gpio-controller
+
+additionalProperties: false
+
+...