Re: [PATCH 1/2] dt-bindings: net: wireless: ath11k: add new DT entry for board ID

From: Kalle Valo
Date: Mon Jun 27 2022 - 06:27:04 EST


Robert Marko <robimarko@xxxxxxxxx> writes:

> bus + qmi-chip-id + qmi-board-id and optionally the variant are currently
> used for identifying the correct board data file.
>
> This however is sometimes not enough as all of the IPQ8074 boards that I
> have access to dont have the qmi-board-id properly fused and simply return
> the default value of 0xFF.
>
> So, to provide the correct qmi-board-id add a new DT property that allows
> the qmi-board-id to be overridden from DTS in cases where its not set.
> This is what vendors have been doing in the stock firmwares that were
> shipped on boards I have.

What's wrong with using 0xff? Ie. something like this:

bus=ahb,qmi-chip-id=0,qmi-board-id=255,variant=foo

Or maybe even just skip qmi-board-id entirely if it's not supported? So
that the board file string would be something like:

bus=ahb,qmi-chip-id=0,variant=foo

I really would like to avoid adding more DT properties unless it's
absolutely critical.

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