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/soc/amlogic/amlogic,canvas.yaml

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 BayLibre, SAS
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/amlogic/amlogic,canvas.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Canvas Video Lookup Table
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+  - Maxime Jourdan <mjourdan@baylibre.com>
+
+description: |
+  A canvas is a collection of metadata that describes a pixel buffer.
+  Those metadata include: width, height, phyaddr, wrapping and block mode.
+  Starting with GXBB the endianness can also be described.
+
+  Many IPs within Amlogic SoCs rely on canvas indexes to read/write pixel data
+  rather than use the phy addresses directly. For instance, this is the case for
+  the video decoders and the display.
+
+  Amlogic SoCs have 256 canvas.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - amlogic,meson8-canvas
+              - amlogic,meson8b-canvas
+              - amlogic,meson8m2-canvas
+          - const: amlogic,canvas
+      - const: amlogic,canvas # GXBB and newer SoCs
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    canvas: video-lut@48 {
+        compatible = "amlogic,canvas";
+        reg = <0x48 0x14>;
+    };

bindings/soc/amlogic/clk-measure.txt

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+Amlogic Internal Clock Measurer
+===============================
+
+The Amlogic SoCs contains an IP to measure the internal clocks.
+The precision is multiple of MHz, useful to debug the clock states.
+
+Required properties:
+- compatible: Shall contain one of the following :
+			"amlogic,meson-gx-clk-measure" for GX SoCs
+			"amlogic,meson8-clk-measure" for Meson8 SoCs
+			"amlogic,meson8b-clk-measure" for Meson8b SoCs
+			"amlogic,meson-axg-clk-measure" for AXG SoCs
+			"amlogic,meson-g12a-clk-measure" for G12a SoCs
+			"amlogic,meson-sm1-clk-measure" for SM1 SoCs
+- reg: base address and size of the Clock Measurer register space.
+
+Example:
+	clock-measure@8758 {
+		compatible = "amlogic,meson-gx-clk-measure";
+		reg = <0x0 0x8758 0x0 0x10>;
+	};