Re: (EXT) Re: (EXT) Re: (EXT) Re: (EXT) Re: [PATCH 2/2] ARM: dts: imx6qdl: tqma6: minor fixes

From: Matthias Schiffer
Date: Wed Aug 26 2020 - 07:55:36 EST


On Wed, 2020-08-26 at 07:59 -0300, Fabio Estevam wrote:
> Hi Matthias,
>
> On Wed, Aug 26, 2020 at 7:32 AM Matthias Schiffer
> <matthias.schiffer@xxxxxxxxxxxxxxx> wrote:
>
> > But the previous platform data that was removed in 8cdcd8aeee281
> > ("spi:
> > imx/fsl-lpspi: Convert to GPIO descriptors") set different values
> > for
> > different boards. So maybe some DTS should be using num-cs?
>
> Could you provide an example of an imx dts that should use num-cs?

I'm not sure, does anything break when num_chipselect is set too high?

Before 8cdcd8aeee281, num_chipselect was set to 3 for spi0 and to 1 for
spi1 in arch/arm/mach-imx/mach-mx31lite.c. My understanding is that it
would make sense to add this as num-cs to
arch/arm/boot/dts/imx31-lite.dts.