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From: Animesh Agarwal <animeshagarwal28@gmail.com>
To: 
Cc: animeshagarwal28@gmail.com,
	Vinod Koul <vkoul@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	dmaengine@vger.kernel.org,
	devicetree@vger.kernel.org,
	imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] dt-bindings: dma: fsl,imx-dma: Convert to dtschema
Date: Thu, 30 May 2024 12:51:07 +0530
Message-ID: <20240530072113.30410-1-animeshagarwal28@gmail.com>
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Convert the fsl i.MX DMA controller bindings to DT schema

Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>
---
 .../devicetree/bindings/dma/fsl,imx-dma.yaml  | 58 +++++++++++++++++++
 .../devicetree/bindings/dma/fsl-imx-dma.txt   | 50 ----------------
 2 files changed, 58 insertions(+), 50 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-dma.yaml
 delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-dma.txt

diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-dma.yaml b/Documentation/devicetree/bindings/dma/fsl,imx-dma.yaml
new file mode 100644
index 000000000000..f36ab5425bdb
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/fsl,imx-dma.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/fsl,imx-dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Direct Memory Access (DMA) Controller for i.MX
+
+maintainers:
+  - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+allOf:
+  - $ref: dma-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx1-dma
+      - fsl,imx21-dma
+      - fsl,imx27-dma
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: |
+      First item should be DMA interrupt, second one is optional and
+      should contain DMA Error interrupt.
+    minItems: 1
+    maxItems: 2
+
+  "#dma-cells":
+    const: 1
+
+  dma-channels:
+    const: 16
+
+  dma-requests:
+    description: |
+      Number of DMA requests supported.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - "#dma-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    dma: dma-controller@10001000 {
+      compatible = "fsl,imx27-dma";
+      reg = <0x10001000 0x1000>;
+      interrupts = <32 33>;
+      #dma-cells = <1>;
+      dma-channels = <16>;
+    };
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt
deleted file mode 100644
index 1c9929d53727..000000000000
--- a/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-* Freescale Direct Memory Access (DMA) Controller for i.MX
-
-This document will only describe differences to the generic DMA Controller and
-DMA request bindings as described in dma/dma.txt .
-
-* DMA controller
-
-Required properties:
-- compatible : Should be "fsl,<chip>-dma". chip can be imx1, imx21 or imx27
-- reg : Should contain DMA registers location and length
-- interrupts : First item should be DMA interrupt, second one is optional and
-    should contain DMA Error interrupt
-- #dma-cells : Has to be 1. imx-dma does not support anything else.
-
-Optional properties:
-- dma-channels : Number of DMA channels supported. Should be 16.
-- #dma-channels : deprecated
-- dma-requests : Number of DMA requests supported.
-- #dma-requests : deprecated
-
-Example:
-
-	dma: dma@10001000 {
-		compatible = "fsl,imx27-dma";
-		reg = <0x10001000 0x1000>;
-		interrupts = <32 33>;
-		#dma-cells = <1>;
-		dma-channels = <16>;
-	};
-
-
-* DMA client
-
-Clients have to specify the DMA requests with phandles in a list.
-
-Required properties:
-- dmas: List of one or more DMA request specifiers. One DMA request specifier
-    consists of a phandle to the DMA controller followed by the integer
-    specifying the request line.
-- dma-names: List of string identifiers for the DMA requests. For the correct
-    names, have a look at the specific client driver.
-
-Example:
-
-	sdhci1: sdhci@10013000 {
-		...
-		dmas = <&dma 7>;
-		dma-names = "rx-tx";
-		...
-	};
-- 
2.45.1