[PATCH v2] ASoC: dt-bindings: tegra20-ac97: convert to dt schema

[Mohammad Shehar Yaar Tausif <sheharyaar48@xxxxxxxxx>]

Convert NVIDIA Tegra20 AC97 binding to DT schema.
Change -gpio to -gpios in both schema and nvidia/tegra20-colibri.dtsi

Signed-off-by: Mohammad Shehar Yaar Tausif <sheharyaar48@xxxxxxxxx>
---
Changes v1->v2:
- change -gpio to -gpios in both schema and dtsi
- tested against dts
- add header files and defines
---
 .../bindings/sound/nvidia,tegra20-ac97.txt    | 36 --------
 .../bindings/sound/nvidia,tegra20-ac97.yaml   | 86 +++++++++++++++++++
 arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi |  4 +-
 3 files changed, 88 insertions(+), 38 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.yaml

diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
deleted file mode 100644
index eaf00102d92c..000000000000
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-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";
-};
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..9a68578f6fc3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.yaml
@@ -0,0 +1,86 @@
+# 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@xxxxxxxxxx>
+  - Jon Hunter <jonathanh@xxxxxxxxxx>
+
+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:
+      The Tegra GPIO controller's phandle and the number
+      of the GPIO used to reset the external AC97 codec
+    maxItems: 1
+
+  nvidia,codec-sync-gpios:
+    description:
+      The Tegra GPIO controller's phandle and the number
+      of the GPIO corresponding with the 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>;
+    };
+...
diff --git a/arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi b/arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi
index 8c1d5c9fa483..2ff7be8f1382 100644
--- a/arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra20-colibri.dtsi
@@ -445,9 +445,9 @@ lvp0 {
 
 	tegra_ac97: ac97@70002000 {
 		status = "okay";
-		nvidia,codec-reset-gpio =
+		nvidia,codec-reset-gpios =
 			<&gpio TEGRA_GPIO(V, 0) GPIO_ACTIVE_LOW>;
-		nvidia,codec-sync-gpio =
+		nvidia,codec-sync-gpios =
 			<&gpio TEGRA_GPIO(P, 0) GPIO_ACTIVE_HIGH>;
 	};
 
-- 
2.44.0