Squashed 'dts/upstream/' content from commit aaba2d45dc2a

git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/Bindings/spi/nvidia,tegra210-quad.yaml b/Bindings/spi/nvidia,tegra210-quad.yaml
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+++ b/Bindings/spi/nvidia,tegra210-quad.yaml
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/nvidia,tegra210-quad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tegra Quad SPI Controller
+
+maintainers:
+  - Thierry Reding <thierry.reding@gmail.com>
+  - Jonathan Hunter <jonathanh@nvidia.com>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - nvidia,tegra210-qspi
+      - nvidia,tegra186-qspi
+      - nvidia,tegra194-qspi
+      - nvidia,tegra234-qspi
+      - nvidia,tegra241-qspi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: qspi
+      - const: qspi_out
+
+  clocks:
+    maxItems: 2
+
+  resets:
+    maxItems: 1
+
+  dmas:
+    maxItems: 2
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+patternProperties:
+  "@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      spi-rx-bus-width:
+        enum: [1, 2, 4]
+
+      spi-tx-bus-width:
+        enum: [1, 2, 4]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clock-names
+  - clocks
+  - resets
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra210-car.h>
+    #include <dt-bindings/reset/tegra210-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    spi@70410000 {
+        compatible = "nvidia,tegra210-qspi";
+        reg = <0x70410000 0x1000>;
+        interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        clocks = <&tegra_car TEGRA210_CLK_QSPI>,
+                 <&tegra_car TEGRA210_CLK_QSPI_PM>;
+        clock-names = "qspi", "qspi_out";
+        resets = <&tegra_car 211>;
+        dmas = <&apbdma 5>, <&apbdma 5>;
+        dma-names = "rx", "tx";
+
+        flash@0 {
+            compatible = "jedec,spi-nor";
+            reg = <0>;
+            spi-max-frequency = <104000000>;
+            spi-tx-bus-width = <2>;
+            spi-rx-bus-width = <2>;
+            nvidia,tx-clk-tap-delay = <0>;
+            nvidia,rx-clk-tap-delay = <0>;
+        };
+    };