Re: [PATCH v3 0/5] serial: sc16is7xx: split into core and I2C/SPI parts

[Andy Shevchenko]

On Tue, Apr 2, 2024 at 8:45 PM Hugo Villeneuve <hugo@xxxxxxxxxxx> wrote:
>
> From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
>
> Hello,
> this patch series splits the SPI/I2C parts for the sc16is7xx driver into
> separate source files (and separate I2C/SPI drivers).
>
> These changes are based on suggestions made by Andy Shevchenko
> following this discussion:
>
> Link: https://lore.kernel.org/all/CAHp75VebCZckUrNraYQj9k=Mrn2kbYs1Lx26f5-8rKJ3RXeh-w@xxxxxxxxxxxxxx/
>
> The changes are split into multiple patches to facilitate the review process.
> In the end, some of them could be merged into a single patch.
>
> I have tested the changes on a custom board with two SC16IS752 DUART over
> a SPI interface using a Variscite IMX8MN NANO SOM. The four UARTs are
> configured in RS-485 mode.
>
> I did not test the changes on a real SC16is7xx using the I2C interface. But
> I slighly modified the driver to be able to simulate an I2C device using

slightly

> i2c-stub. I was then able to instantiate a virtual I2C device without
> disturbing existing connection/communication between real SPI devices on
> /dev/ttySC0 and /dev/ttySC2 (using a loopback cable).

For patches 1,2,5
Reviewed-by: Andy Shevchenko <andy@xxxxxxxxxx>

-- 
With Best Regards,
Andy Shevchenko