Re: [PATCH net v2 1/1] net: dsa: microchip: make sure drive strength configuration is not lost by soft reset

[Oleksij Rempel]

On Wed, Mar 06, 2024 at 03:29:32AM +0000, Arun.Ramadoss@xxxxxxxxxxxxx wrote:
> Hi Jakub,
> 
> On Tue, 2024-03-05 at 19:14 -0800, Jakub Kicinski wrote:
> > EXTERNAL EMAIL: Do not click links or open attachments unless you
> > know the content is safe
> > 
> > On Tue,  5 Mar 2024 07:48:02 +0100 Oleksij Rempel wrote:
> > > This driver has two separate reset sequence in different places:
> > > - gpio/HW reset on start of ksz_switch_register()
> > > - SW reset on start of ksz_setup()
> > > 
> > > The second one will overwrite drive strength configuration made in
> > > the
> > > ksz_switch_register().
> > > 
> > > To fix it, move ksz_parse_drive_strength() from
> > > ksz_switch_register() to
> > > ksz_setup().
> > > 
> > > Fixes: d67d7247f641 ("net: dsa: microchip: Add drive strength
> > > configuration")
> > > Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> > 
> > Hm, this is much larger than I anticipated, and also doesn't apply,
> > so there will be conflict with -next. Andrew, should we go back to
> > the v1?
> 
> Suggestion: Instead of moving ksz_parse_drive_strength() from end of
> file to above, can we move ksz_setup() & ksz_teardown() down. So that
> the changes will be minimal. Will that work?

This will make it hard portable to stable too. As alternative I can
offer to use v1 patch for stable and send bigger patch for next after
in the next net-next window.

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |