[PATCH v3 1/3] dt-bindings: RNG: Add Rockchip RNG bindings

Daniel Golle
2024-06-21T01:25:25Z

From: Aurelien Jarno <aurelien@aurel32.net>

Add the RNG bindings for the RK3568 SoC from Rockchip

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
.../bindings/rng/rockchip,rk3568-rng.yaml | 60 +++++++++++++++++++
MAINTAINERS | 6 ++
2 files changed, 66 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..d45f03683fbe
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
@@ -0,0 +1,61 @@
+# 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 on Rokchip RK3568 SoC
+
+maintainers:
+ - Aurelien Jarno <aurelien@aurel32.net>
+ - Daniel Golle <daniel@makrotopia.org>
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3568-rng
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: TRNG clock
+ - description: TRNG AHB clock
+
+ clock-names:
+ items:
+ - const: core
+ - const: ahb
+
+ 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@fe388000 {
+ compatible = "rockchip,rk3568-rng";
+ reg = <0x0 0xfe388000 0x0 0x4000>;
+ clocks = <&cru CLK_TRNG_NS>, <&cru HCLK_TRNG_NS>;
+ clock-names = "core", "ahb";
+ resets = <&cru SRST_TRNG_NS>;
+ };
+ };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index f45881e982d2..77d449c89bf2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19488,6 +19488,12 @@ F: Documentation/userspace-api/media/v4l/metafmt-rkisp1.rst
F: drivers/media/platform/rockchip/rkisp1
F: include/uapi/linux/rkisp1-config.h

+ROCKCHIP RANDOM NUMBER GENERATOR SUPPORT
+M: Daniel Golle <daniel@makrotopia.org>
+M: Aurelien Jarno <aurelien@aurel32.net>
+S: Maintained
+F: Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
+
ROCKCHIP RASTER 2D GRAPHIC ACCELERATION UNIT DRIVER
M: Jacob Chen <jacob-chen@iotwrt.com>
M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
--
2.45.2