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Message-Id: <20221128184718.1963353-2-aurelien@aurel32.net>
Date: Mon, 28 Nov 2022 19:47:16 +0100
From: Aurelien Jarno <aurelien@...el32.net>
To: Olivia Mackall <olivia@...enic.com>,
Herbert Xu <herbert@...dor.apana.org.au>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Heiko Stuebner <heiko@...ech.de>,
Philipp Zabel <p.zabel@...gutronix.de>,
Lin Jinhan <troy.lin@...k-chips.com>
Cc: linux-crypto@...r.kernel.org (open list:HARDWARE RANDOM NUMBER
GENERATOR CORE),
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Rockchip SoC
support),
linux-rockchip@...ts.infradead.org (open list:ARM/Rockchip SoC support),
linux-kernel@...r.kernel.org (open list),
Aurelien Jarno <aurelien@...el32.net>
Subject: [PATCH v2 1/3] dt-bindings: RNG: Add Rockchip RNG bindings
Add the RNG bindings for the RK3568 SoC from Rockchip
Signed-off-by: Aurelien Jarno <aurelien@...el32.net>
---
.../bindings/rng/rockchip,rk3568-rng.yaml | 60 +++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
diff --git a/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
new file mode 100644
index 000000000000..c2f5ef69cf07
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/rockchip,rk3568-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip TRNG
+
+description: True Random Number Generator for some Rockchip SoCs
+
+maintainers:
+ - Aurelien Jarno <aurelien@...el32.net>
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3568-rng
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: TRNG clock
+ - description: TRNG AHB clock
+
+ clock-names:
+ items:
+ - const: trng_clk
+ - const: trng_hclk
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3568-cru.h>
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ rng@...88000 {
+ compatible = "rockchip,rk3568-rng";
+ reg = <0x0 0xfe388000 0x0 0x4000>;
+ clocks = <&cru CLK_TRNG_NS>, <&cru HCLK_TRNG_NS>;
+ clock-names = "trng_clk", "trng_hclk";
+ resets = <&cru SRST_TRNG_NS>;
+ };
+ };
+
+...
--
2.35.1
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