linux-kernel - [PATCH 2/4] dt-bindings: nintendo-otp: Document the Wii and Wii U OTP support

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Message-Id: <20210519090525.1788-3-linkmauve@linkmauve.fr>
Date:   Wed, 19 May 2021 11:05:23 +0200
From:   Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linuxppc-dev@...ts.ozlabs.org, devicetree@...r.kernel.org
Cc:     Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>,
        Ash Logan <ash@...quark.com>,
        Jonathan Neuschäfer <j.ne@...teo.net>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] dt-bindings: nintendo-otp: Document the Wii and Wii U OTP support

Both of these consoles use the exact same two registers, even at the
same address, but the Wii U has eight banks of 128 bytes memory while
the Wii only has one, hence the two compatible strings.

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
---
 .../devicetree/bindings/nvmem/nintendo-otp.txt     | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/nvmem/nintendo-otp.txt

diff --git a/Documentation/devicetree/bindings/nvmem/nintendo-otp.txt b/Documentation/devicetree/bindings/nvmem/nintendo-otp.txt
new file mode 100644
index 000000000000..b26d705ec52d
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/nintendo-otp.txt
@@ -0,0 +1,14 @@
+Nintendo Wii and Wii U OTP
+
+Required Properties:
+- compatible: depending on the console this should be one of:
+	- "nintendo,hollywood-otp" for the Wii
+	- "nintendo,latte-otp" for the Wii U
+- reg: base address and size of the OTP registers
+
+
+Example:
+	otp@...01ec {
+		compatible = "nintendo,latte-otp";
+		reg = <0x0d8001ec 0x8>;
+	};
-- 
2.31.1