dt-bindings: Add devicetree bindings

Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").

Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>

bindings/timer/ti,timer-dm.yaml

@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/ti,timer-dm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI dual-mode timer
+
+maintainers:
+  - Tony Lindgren <tony@atomide.com>
+
+description: |
+  The TI dual-mode timer is a general purpose timer with PWM capabilities.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - ti,am335x-timer
+              - ti,am335x-timer-1ms
+              - ti,am654-timer
+              - ti,dm814-timer
+              - ti,dm816-timer
+              - ti,omap2420-timer
+              - ti,omap3430-timer
+              - ti,omap4430-timer
+              - ti,omap5430-timer
+      - items:
+          - const: ti,am4372-timer
+          - const: ti,am335x-timer
+      - items:
+          - const: ti,am4372-timer-1ms
+          - const: ti,am335x-timer-1ms
+
+  reg:
+    items:
+      - description: IO address
+      - description: L3 to L4 mapping for omap4/5 L4 ABE
+    minItems: 1
+
+  clocks:
+    items:
+      - description: Functional clock
+      - description: System clock for omap4/5 and dra7
+    minItems: 1
+
+  clock-names:
+    items:
+      - const: fck
+      - const: timer_sys_ck
+    minItems: 1
+
+  power-domains:
+    description:
+      Power domain if available
+    maxItems: 1
+
+  interrupts:
+    description:
+      Interrupt if available. The timer PWM features may be usable
+      in a limited way even without interrupts.
+    maxItems: 1
+
+  ti,timer-alwon:
+    description:
+      Timer is always enabled when the SoC is powered. Note that some SoCs like
+      am335x can suspend to PM coprocessor RTC only mode and in that case the
+      SoC power is cut including timers.
+    type: boolean
+
+  ti,timer-dsp:
+    description:
+      Timer is routable to the DSP in addition to the operating system.
+    type: boolean
+
+  ti,timer-pwm:
+    description:
+      Timer has been wired for PWM capability.
+    type: boolean
+
+  ti,timer-secure:
+    description:
+      Timer access has been limited to secure mode only.
+    type: boolean
+
+  ti,hwmods:
+    description:
+      Name of the HWMOD associated with timer. This is for legacy
+      omap2/3 platforms only.
+    $ref: /schemas/types.yaml#/definitions/string
+    deprecated: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,am654-timer
+    then:
+      required:
+        - power-domains
+    else:
+      required:
+        - interrupts
+
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - ti,omap3430-timer
+                - ti,omap4430-timer
+                - ti,omap5430-timer
+    then:
+      properties:
+        reg:
+          maxItems: 1
+        clocks:
+          maxItems: 1
+        clock-names:
+          maxItems: 1
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - ti,dm814-timer
+              - ti,dm816-timer
+              - ti,omap2420-timer
+              - ti,omap3430-timer
+    then:
+      properties:
+        ti,hwmods:
+          items:
+            - pattern: "^timer([1-9]|1[0-2])$"
+    else:
+      properties:
+        ti,hwmods: false
+
+examples:
+  - |
+    timer1: timer@0 {
+      compatible = "ti,am335x-timer-1ms";
+      reg = <0x0 0x400>;
+      interrupts = <67>;
+      ti,timer-alwon;
+      clocks = <&timer1_fck>;
+      clock-names = "fck";
+    };
+...