Re: [PATCH 0/5] mtd: rawnand: davinci: Convert to exec_op()

[Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>]

pt., 1 maj 2020 o 12:07 Boris Brezillon
<boris.brezillon@xxxxxxxxxxxxx> napisał(a):
>
> Hello,
>
> A bit of context to explain the motivation behind those conversions
> I've been sending for the last couple of weeks. The raw NAND subsystem
> carries a lot of history which makes any rework not only painful, but
> also subject to regressions which we only detect when someone dares to
> update its kernel on one of those ancient HW. While carrying drivers
> for old HW is not a problem per se, carrying ancient and unmaintained
> drivers that are not converted to new APIs is a maintenance burden,
> hence this massive conversion attempt I'm conducting here.
>
> So here is a series converting the Davinci NAND controller driver to
> exec_op(), plus a bunch of minor improvements done along the way.
>
> Regards,
>
> Boris
>
> Boris Brezillon (5):
>   mtd: rawnand: davinci: Inherit from nand_controller
>   mtd: rawnand: davinci: Stop using nand_chip.legacy.IO_ADDR_{R,W}
>   mtd: rawnand: davinci: Implement exec_op()
>   mtd: rawnand: davinci: Get rid of the legacy interface implementation
>   mtd: rawnand: davinci: Change the {read,write}_buf prototypes
>
>  drivers/mtd/nand/raw/davinci_nand.c | 161 +++++++++++++++-------------
>  1 file changed, 85 insertions(+), 76 deletions(-)
>
> --
> 2.25.3
>

Hi Boris,

Thanks for doing this. Unfortunately this breaks NAND on da850-lcdk
with the following error message:

    nand: No NAND device found

I'm super busy this week and so I don't have the time to investigate
further, I can get back to it next week hopefully.

Bart

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