Hi Conor, > On Fri, Feb 21, 2025 at 09:56:59PM +0100, Lukasz Majewski wrote: > > Hi Conor, > > > > > On Fri, Feb 21, 2025 at 04:54:18PM +0100, Lukasz Majewski wrote: > > > > 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@xxxxxxx> > > > > --- > > > > 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 > > > > fadbd3c041c8..5d736a9792c2 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 > > > > + - lwe,btt > ^^ > Are these two trailing spaces an artefact of the mail? > No, there shall not be any. > > > > > > How does "btt" translate to what the device actually is? Seems > > > kinda random! > > > > Btt is a family of devices (bttc, btt3, xea) - to control heavy duty > > machines. > > > > That was the original codename - conceived probably 30+ years ago. > > If there's 3 different devices, how come there aren't 3 compatibles, 1 > for each? There are devices from a single "family" of them, but different. They are using similar approach for spidev devices connected. > > > > > > Also, where is patch 3, adding the lwe,btt to the spidev driver so > > > that it will probe? > > > > I've posted it to Mark Brown (and also linux-spi ML) for review. > > > > > > > > Cheers, > > > Conor. > > > > > > > # 5 Bit Programmable, Pulse-Width Modulator > > > > - maxim,ds1050 > > > > # 10 kOhm digital potentiometer with I2C interface > > > > -- > > > > 2.39.5 > > > > > > > > > > > > > > Best regards, > > > > Lukasz Majewski > > > > -- > > > > DENX Software Engineering GmbH, Managing Director: Erika Unter > > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, > > Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: > > lukma@xxxxxxx > > Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Erika Unter HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@xxxxxxx
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