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Subject[PATCH 2/2] dt-bindings: rng: Add MediaTek MT7981 TRNG
Add documentation to describe the MediaTek true random number generator
which is provided by ARM TrustedFirmware-A of the MT7981.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
.../bindings/rng/mediatek,mt7981-rng.yaml | 39 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 40 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rng/mediatek,mt7981-rng.yaml

diff --git a/Documentation/devicetree/bindings/rng/mediatek,mt7981-rng.yaml b/Documentation/devicetree/bindings/rng/mediatek,mt7981-rng.yaml
new file mode 100644
index 000000000000..d577d60538d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/mediatek,mt7981-rng.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/mediatek,mt7981-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Random number generator (v2/SMC)
+
+maintainers:
+ - Daniel Golle <daniel@makrotopia.org>
+
+properties:
+ $nodename:
+ pattern: "^rng$"
+
+ compatible:
+ enum:
+ - mediatek,mt7981-rng
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: rng
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ rng {
+ compatible = "mediatek,mt7981-rng";
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 90d82aba6d73..523f1abf00d5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13148,6 +13148,7 @@ F: drivers/leds/leds-mt6323.c
MEDIATEK RANDOM NUMBER GENERATOR SUPPORT
M: Sean Wang <sean.wang@mediatek.com>
S: Maintained
+F: Documentation/devicetree/bindings/rng/mediatek,*
F: drivers/char/hw_random/mtk-rng-v2.c
F: drivers/char/hw_random/mtk-rng.c

--
2.39.1
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