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SubjectRe: [PATCH 01/10] mtd: spi-nor: aspeed: Rename Kconfig option
On Sun, 27 Feb 2022 at 18:50, Cédric Le Goater <clg@kaod.org> wrote:
>
> On 2/25/22 08:31, Pratyush Yadav wrote:
> > On 14/02/22 10:42AM, Cédric Le Goater wrote:
> >> To prepare transition to the new Aspeed SMC SPI controller driver using
> >> the spi-mem interface, change the kernel CONFIG option of the current
> >> driver to reflect that the implementation uses the MTD SPI-NOR interface.
> >> Once the new driver is sufficiently exposed, we should remove the old one.
> >
> > I don't quite understand the reasoning behind this. Why keep the old
> > driver around? Why not directly replace it with the new one? Does the
> > new one have any limitations that this one doesn't?
>
> No. The old one has more limitations than the new one. The old one in
> mainline is half baked since we could never merge the necessary bits
> for training. We have been keeping a full version on the OpenBMC tree.
>
> Joel, could we simply drop the old driver in mainline and keep the old
> one in the OpenBMC tree until we feel comfortable ? I guess we need
> more testing.

I would answer Pratyush's question with: the old one is well tested,
and the new one is not. We would intend to keep the old one around for
a release cycle or two, and once we're confident the new one is stable
we would remove the old.

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