linux-kernel - Re: [PATCH] spi: spidev: Add compatible for external SPI ports on Kontron boards

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Date:   Wed, 15 Jul 2020 14:51:46 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Frieder Schrempf <frieder.schrempf@...tron.de>
Cc:     linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org
Subject: Re: [PATCH] spi: spidev: Add compatible for external SPI ports on
 Kontron boards

On Wed, Jul 15, 2020 at 03:48:37PM +0200, Frieder Schrempf wrote:
> On 15.07.20 15:10, Mark Brown wrote:

> > I'm not sure platforms like this are a great fit for DT TBH - the
> > trouble with DT is that it turns things into ABIs regardless of if it's
> > really a finished thing, platform data based systems were a lot more
> > flexible here.

> I see your point. Still it seems like the overlays would provide a
> sufficient alternative in matters of flexibility. Raspberry Pi uses it for
> years, which made me assume that some generic loading API is available. But
> it seems like everything is RPi-specific and downstream.

Yes, overlays would be fine if there were a way to use them for
connectors like this.  The connectors are a real problem, it's not just
RPi that has their own loaders/infrastructure downstream.

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