linux-kernel - [PATCH v2] dt-bindings: trivial-devices: Document SPI measurement on LWE boards

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Message-Id: <20250326171838.2689448-1-lukma@denx.de>
Date: Wed, 26 Mar 2025 18:18:38 +0100
From: Lukasz Majewski <lukma@...x.de>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Guenter Roeck <linux@...ck-us.net>,
	Noah Wang <noahwang.wang@...look.com>,
	Michal Simek <michal.simek@....com>,
	Fabio Estevam <festevam@...il.com>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Naresh Solanki <naresh.solanki@...ements.com>,
	Lukasz Majewski <lukma@...x.de>
Subject: [PATCH v2] dt-bindings: trivial-devices: Document SPI measurement on LWE boards

The measurement device on Liebherr's (LWE) boards is used to monitor
the overall state of the device. It does have SPI interface to
communicate with Linux host via spidev driver. Document the SPI DT
binding as trivial SPI device.

Signed-off-by: Lukasz Majewski <lukma@...x.de>
---
Changes for v2:
- Use already in-kernel available 'lwn' vendor prefix instead of introducing
  a new one
---
 Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 8da408107e55..1e37144e7017 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -161,6 +161,8 @@ properties:
           - jedec,spd5118
             # Linear Technology LTC2488
           - lineartechnology,ltc2488
+            # Liebherr on-board measurement SPI device
+          - lwn,btt
             # 5 Bit Programmable, Pulse-Width Modulator
           - maxim,ds1050
             # 10 kOhm digital potentiometer with I2C interface
-- 
2.39.5