linux-kernel - Re: [PATCH] arm64: dts: ti: am64-phyboard-electra: Add DT overlay for X27 connector

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Message-ID: <ebf1d46a-63b9-4237-a15e-226b5c291ddd@kernel.org>
Date: Tue, 28 Jan 2025 10:02:18 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Daniel Schultz <D.Schultz@...tec.de>, "nm@...com" <nm@...com>,
 "vigneshr@...com" <vigneshr@...com>, "kristo@...nel.org"
 <kristo@...nel.org>, "robh@...nel.org" <robh@...nel.org>,
 "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
 "conor+dt@...nel.org" <conor+dt@...nel.org>,
 "linux-arm-kernel@...ts.infradead.org"
 <linux-arm-kernel@...ts.infradead.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc: Wadim Egorov <W.Egorov@...tec.de>,
 "upstream@...ts.phytec.de" <upstream@...ts.phytec.de>
Subject: Re: [PATCH] arm64: dts: ti: am64-phyboard-electra: Add DT overlay for
 X27 connector

On 28/01/2025 09:43, Daniel Schultz wrote:
> Hi,
> 
> On 27.01.25 18:24, Krzysztof Kozlowski wrote:
>> On 27/01/2025 07:57, Daniel Schultz wrote:
>>> +&main_spi1 {
>>> +	pinctrl-names = "default";
>>> +	pinctrl-0 = <&main_spi1_pins_default>;
>>> +	ti,pindir-d0-out-d1-in = <1>;
>>> +	status = "okay";
>>> +
>>> +	spidev@0 {
>>
>> Node names should be generic. See also an explanation and list of
>> examples (not exhaustive) in DT specification:
>> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>>
>>
>>> +		compatible = "rohm,dh2228fv";
>>
>> That's not the device you have there. You cannot use other compatibles.
> 
> I will remove that device for now and see if I can find a supported 
> device on Sparkfun or similar, which I can add later.

This sounds like you do not have there any device, so this cannot be
represented in the DTS.

Best regards,
Krzysztof