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SubjectRe: [PATCH 0/2] rewrite mtk-quadspi spi-nor driver with spi-mem
Hi!

On Tue, Feb 18, 2020 at 8:55 PM Mark Brown <broonie@kernel.org> wrote:
> This is an ABI break so you shouldn't be doing this, if the existing
> binding works it should continue to work.

The missing spi-max-frequency is the only part preventing old
device tree to work with this driver.
If the goal is to make existing dt binding work, I could patch dt using
of_add_property in v2. I saw similar device tree patching for legacy
bindings in pinctrl-single driver.

>
> > 3. removing the old driver. I'll create this commit after 1 and 2 are
> > applied to avoid possible rebasing due to any changes in the old
> > driver.
>
> This isn't great as it means we have a period with two drivers for the
> same thing in tree which is at best going to be confusing. There's no
> advantage to splitting this out.

Got it. I'll add this patch in v2.

--
Regards,
Chuanhong Guo

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