Re: [PATCH 11/13] MIPS: Add Mobileye EyeQ6Lplus evaluation board dts

From: Krzysztof Kozlowski

Date: Fri Dec 19 2025 - 11:28:34 EST


On 19/12/2025 16:57, Benoît Monin wrote:
> Hi Krzysztof,
>
> On 12/18/25 16:30, Krzysztof Kozlowski wrote:
>> On 17/12/2025 14:36, Benoît Monin wrote:
>>> +
>>> +&spi0 {
>>> + pinctrl-0 = <&spi0_pins>;
>>> + pinctrl-names = "default";
>>> + status = "okay";
>>> + spidev@0 {
>>> + compatible = "lwn,bk4-spi";
>>
>> NAK, you are not operating an excavator here.
>>
> Indeed, I do not (and I should have known better...).
>
>> Don't invent hardware.
>>
> In my particular case of a microcontroller acting as an SPI "relay" on the
> evaluation board, what would be the best way to describe it? It connects
> the two SPI controllers of the SoC, one is a host and one is a target, so
> it behave as an SPI target on one side and as an SPI host on the other.
>
> The trivial devices bindings seems to be dedicated to devices, thus not for
> SPI hosts. Do I need a dedicated binding or did I miss something I could
> use for a trivial spidev slave?

In DT you describe only a real device connected here, so in case of your
evalboard - nothing can be described, because there is no such real device.

Best regards,
Krzysztof