linux-kernel - [PATCH 4/5] dt-bindings: crypto: add documentation for aspeed hace

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Date:   Wed, 1 Jun 2022 13:42:03 +0800
From:   Neal Liu <neal_liu@...eedtech.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Joel Stanley <joel@....id.au>,
        "Andrew Jeffery" <andrew@...id.au>,
        Johnny Huang <johnny_huang@...eedtech.com>
CC:     <linux-aspeed@...ts.ozlabs.org>, <linux-crypto@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/5] dt-bindings: crypto: add documentation for aspeed hace

Add device tree binding documentation for the Aspeed Hash
and Crypto Engines (HACE) Controller.

Signed-off-by: Neal Liu <neal_liu@...eedtech.com>
Signed-off-by: Johnny Huang <johnny_huang@...eedtech.com>
---
 .../bindings/crypto/aspeed,hace.yaml          | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/aspeed,hace.yaml

diff --git a/Documentation/devicetree/bindings/crypto/aspeed,hace.yaml b/Documentation/devicetree/bindings/crypto/aspeed,hace.yaml
new file mode 100644
index 000000000000..36b4ad0dc7fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/aspeed,hace.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/aspeed,hace.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASPEED HACE hash and crypto Hardware Accelerator Device Tree Bindings
+
+maintainers:
+  - Neal Liu <neal_liu@...eedtech.com>
+
+description: |
+  The Hash and Crypto Engine (HACE) is designed to accelerate the throughput
+  of hash data digest, encryption, and decryption. Basically, HACE can be
+  divided into two independently engines - Hash Engine and Crypto Engine.
+
+properties:
+  compatible:
+    enum:
+      - aspeed,ast2500-hace
+      - aspeed,ast2600-hace
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/ast2600-clock.h>
+    hace: hace@...d0000 {
+        compatible = "aspeed,ast2600-hace";
+        reg = <0x1e6d0000 0x200>;
+        interrupts = <4>;
+        clocks = <&syscon ASPEED_CLK_GATE_YCLK>;
+        clock-names = "yclk";
+        resets = <&syscon ASPEED_RESET_HACE>;
+    };
-- 
2.25.1