ASoC: dt-bindings: tegra20-ac97: convert to dt schema

Convert NVIDIA Tegra20 AC97 binding to DT schema.
Change -gpio to -gpios in schema as "gpio" suffix is deprecated.

Signed-off-by: Mohammad Shehar Yaar Tausif <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt

···
-NVIDIA Tegra 20 AC97 controller
-
-Required properties:
-- compatible : "nvidia,tegra20-ac97"
-- reg : Should contain AC97 controller registers location and length
-- interrupts : Should contain AC97 interrupt
-- resets : Must contain an entry for each entry in reset-names.
-  See ../reset/reset.txt for details.
-- reset-names : Must include the following entries:
-  - ac97
-- dmas : Must contain an entry for each entry in clock-names.
-  See ../dma/dma.txt for details.
-- dma-names : Must include the following entries:
-  - rx
-  - tx
-- clocks : Must contain one entry, for the module clock.
-  See ../clocks/clock-bindings.txt for details.
-- nvidia,codec-reset-gpio : The Tegra GPIO controller's phandle and the number
-  of the GPIO used to reset the external AC97 codec
-- nvidia,codec-sync-gpio : The Tegra GPIO controller's phandle and the number
-  of the GPIO corresponding with the AC97 DAP _FS line
-
-Example:
-
-ac97@70002000 {
-	compatible = "nvidia,tegra20-ac97";
-	reg = <0x70002000 0x200>;
-	interrupts = <0 81 0x04>;
-	nvidia,codec-reset-gpio = <&gpio 170 0>;
-	nvidia,codec-sync-gpio = <&gpio 120 0>;
-	clocks = <&tegra_car 3>;
-	resets = <&tegra_car 3>;
-	reset-names = "ac97";
-	dmas = <&apbdma 12>, <&apbdma 12>;
-	dma-names = "rx", "tx";
-};

Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.yaml

···
+# 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 <[e-mail]>
+  - Jon Hunter <[e-mail]>
+
+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>;
+    };
+...