linux-kernel - [PATCH v2] dt-bindings: crypto: Convert ti,omap4-des to DT schema

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Message-ID: <20250611231058.1402457-1-robh@kernel.org>
Date: Wed, 11 Jun 2025 18:10:56 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Andreas Kemnade <andreas@...nade.info>,
	Kevin Hilman <khilman@...libre.com>,
	Roger Quadros <rogerq@...nel.org>,
	Tony Lindgren <tony@...mide.com>
Cc: linux-crypto@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] dt-bindings: crypto: Convert ti,omap4-des to DT schema

Convert the TI OMAP DES binding to DT schema format.

Drop "ti,hwmods" as it is not actually used for this binding. Only
OMAP2 platforms are using it.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
v2:
 - Drop ti,hwmods from required too
---
 .../devicetree/bindings/crypto/omap-des.txt   | 30 ---------
 .../bindings/crypto/ti,omap4-des.yaml         | 65 +++++++++++++++++++
 2 files changed, 65 insertions(+), 30 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/crypto/omap-des.txt
 create mode 100644 Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml

diff --git a/Documentation/devicetree/bindings/crypto/omap-des.txt b/Documentation/devicetree/bindings/crypto/omap-des.txt
deleted file mode 100644
index e8c63bf2e16d..000000000000
--- a/Documentation/devicetree/bindings/crypto/omap-des.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-OMAP SoC DES crypto Module
-
-Required properties:
-
-- compatible : Should contain "ti,omap4-des"
-- ti,hwmods: Name of the hwmod associated with the DES module
-- reg : Offset and length of the register set for the module
-- interrupts : the interrupt-specifier for the DES module
-- clocks : A phandle to the functional clock node of the DES module
-           corresponding to each entry in clock-names
-- clock-names : Name of the functional clock, should be "fck"
-
-Optional properties:
-- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
-	Documentation/devicetree/bindings/dma/dma.txt
-	Each entry corresponds to an entry in dma-names
-- dma-names: DMA request names should include "tx" and "rx" if present
-
-Example:
-	/* DRA7xx SoC */
-	des: des@...a5000 {
-		compatible = "ti,omap4-des";
-		ti,hwmods = "des";
-		reg = <0x480a5000 0xa0>;
-		interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
-		dmas = <&sdma 117>, <&sdma 116>;
-		dma-names = "tx", "rx";
-		clocks = <&l3_iclk_div>;
-		clock-names = "fck";
-	};
diff --git a/Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml b/Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml
new file mode 100644
index 000000000000..f02f1e141218
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/ti,omap4-des.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ti,omap4-des.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP4 DES crypto Module
+
+maintainers:
+  - Aaro Koskinen <aaro.koskinen@....fi>
+  - Andreas Kemnade <andreas@...nade.info>
+  - Kevin Hilman <khilman@...libre.com>
+  - Roger Quadros <rogerq@...nel.org>
+  - Tony Lindgren <tony@...mide.com>
+
+properties:
+  compatible:
+    const: ti,omap4-des
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  dmas:
+    maxItems: 2
+
+  dma-names:
+    items:
+      - const: tx
+      - const: rx
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: fck
+
+dependencies:
+  dmas: [ dma-names ]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    des@...a5000 {
+        compatible = "ti,omap4-des";
+        reg = <0x480a5000 0xa0>;
+        interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&l3_iclk_div>;
+        clock-names = "fck";
+        dmas = <&sdma 117>, <&sdma 116>;
+        dma-names = "tx", "rx";
+    };
-- 
2.47.2