Re: Suggestion Needed on Demuxer to Select Slave Devices

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

Hi Lad,

On Tue, Aug 22, 2017 at 1:06 PM, Lad, Prabhakar
<prabhakar.csengg@xxxxxxxxx> wrote:
> I am writing a Linux SPI slave driver, on the latest kernel, and
> wanted a suggestion on how the driver could fit in the latest kernel
> with DT.
>
> I have SPI controller which is connected to decoder [1], the SPI
> controller has 2 chip selects, but only one (cs0) is connected to the
> decoder.

... to e.g. G2A of the decoder?

> The decoder has 8 slave devices connected to it, which can be can be
> selected by gpios from the muxer.

So the A/B/C inputs of the decoder are connected to GPIOs?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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