1 files changed, 82 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.yaml
new file mode 100644
index 000000000000..4ea0a303d995
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra20-ac97.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra20 AC97 controller
+
+maintainers:
+  - Thierry Reding <treding@nvidia.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+  compatible:
+    const: nvidia,tegra20-ac97
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: ac97
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  dmas:
+    maxItems: 2
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+  nvidia,codec-reset-gpios:
+    description: Reset pin of external AC97 codec
+    maxItems: 1
+
+  nvidia,codec-sync-gpios:
+    description: AC97 DAP _FS line
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - resets
+  - reset-names
+  - interrupts
+  - clocks
+  - dmas
+  - dma-names
+  - nvidia,codec-reset-gpios
+  - nvidia,codec-sync-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra20-car.h>
+    #include <dt-bindings/gpio/tegra-gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+
+    ac97@70002000 {
+        compatible = "nvidia,tegra20-ac97";
+        reg = <0x70002000 0x200>;
+        resets = <&tegra_car 3>;
+        reset-names = "ac97";
+        interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&tegra_car 3>;
+        dmas = <&apbdma 12>, <&apbdma 12>;
+        dma-names = "rx", "tx";
+        nvidia,codec-reset-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>;
+        nvidia,codec-sync-gpios = <&gpio TEGRA_GPIO(P, 0) GPIO_ACTIVE_HIGH>;
+    };
+...