linux-kernel - [PATCH] ASoC: dt-bindings: fsl,micfil: Convert format to json-schema

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Message-Id: <1655980125-24141-1-git-send-email-shengjiu.wang@nxp.com>
Date:   Thu, 23 Jun 2022 18:28:45 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     shengjiu.wang@...il.com
Subject: [PATCH] ASoC: dt-bindings: fsl,micfil: Convert format to json-schema

Convert the NXP MICFIL binding to DT schema format using json-schema.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 .../devicetree/bindings/sound/fsl,micfil.txt  | 33 ---------
 .../devicetree/bindings/sound/fsl,micfil.yaml | 73 +++++++++++++++++++
 2 files changed, 73 insertions(+), 33 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.txt
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.yaml

diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.txt b/Documentation/devicetree/bindings/sound/fsl,micfil.txt
deleted file mode 100644
index 1ea05d4996c7..000000000000
--- a/Documentation/devicetree/bindings/sound/fsl,micfil.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-NXP MICFIL Digital Audio Interface (MICFIL).
-
-The MICFIL digital interface provides a 16-bit audio signal from a PDM
-microphone bitstream in a configurable output sampling rate.
-
-Required properties:
-
-  - compatible		: Compatible list, contains "fsl,imx8mm-micfil"
-			  or "fsl,imx8mp-micfil"
-
-  - reg			: Offset and length of the register set for the device.
-
-  - interrupts		: Contains the micfil interrupts.
-
-  - clocks		: Must contain an entry for each entry in clock-names.
-
-  - clock-names		: Must include the "ipg_clk" for register access and
-			  "ipg_clk_app" for internal micfil clock.
-
-  - dmas		: Generic dma devicetree binding as described in
-			  Documentation/devicetree/bindings/dma/dma.txt.
-
-Example:
-micfil: micfil@...80000 {
-	compatible = "fsl,imx8mm-micfil";
-	reg = <0x0 0x30080000 0x0 0x10000>;
-	interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
-	clocks = <&clk IMX8MM_CLK_PDM_IPG>,
-		 <&clk IMX8MM_CLK_PDM_ROOT>;
-	clock-names = "ipg_clk", "ipg_clk_app";
-	dmas = <&sdma2 24 26 0x80000000>;
-};
diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.yaml b/Documentation/devicetree/bindings/sound/fsl,micfil.yaml
new file mode 100644
index 000000000000..74c77f4cf7a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,micfil.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,micfil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP MICFIL Digital Audio Interface (MICFIL)
+
+maintainers:
+  - Shengjiu Wang <shengjiu.wang@....com>
+
+description: |
+  The MICFIL digital interface provides a 16-bit or 24-bit audio signal
+  from a PDM microphone bitstream in a configurable output sampling rate.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8mm-micfil
+      - fsl,imx8mp-micfil
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 4
+
+  dmas:
+    items:
+      - description: DMA controller phandle and request line for RX
+
+  dma-names:
+    items:
+      - const: rx
+
+  clocks:
+    items:
+      - description: The ipg clock for register access
+      - description: internal micfil clock
+
+  clock-names:
+    items:
+      - const: ipg_clk
+      - const: ipg_clk_app
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - dmas
+  - dma-names
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx8mm-clock.h>
+    micfil: audio-controller@...80000 {
+        compatible = "fsl,imx8mm-micfil";
+        reg = <0x30080000 0x10000>;
+        interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clk IMX8MM_CLK_PDM_IPG>,
+                 <&clk IMX8MM_CLK_PDM_ROOT>;
+        clock-names = "ipg_clk", "ipg_clk_app";
+        dmas = <&sdma2 24 25 0>;
+        dma-names = "rx";
+    };
-- 
2.17.1