Re: [PATCH 11/11] arm64: dts: Add Pensando Elba SoC support

[Brad Larson <brad@xxxxxxxxxxx>]

Hi Sergey,

On Tue, Apr 12, 2022 at 4:22 AM Serge Semin <fancer.lancer@xxxxxxxxx> wrote:
>
> On Wed, Apr 06, 2022 at 04:36:48PM -0700, Brad Larson wrote:

> > +             spi0: spi@2800 {
> > +                     compatible = "pensando,elba-spi";
> > +                     reg = <0x0 0x2800 0x0 0x100>;
>
> > +                     pensando,syscon-spics = <&mssoc 0x2468>;
>
> I am wondering do you really need to define the
> "pensando,syscon-spics" property as accepting a phandle with an
> additional argument? That would have been justified if you had at
> least two SPI controllers with different CS override registers. AFAICS
> you've got only one here. So you can simplify the bindings by defining
> the property like "pensando,syscon" (with no "spics" suffix) which
> accepts the syscon phandle alone. Respective SPICS offset can be
> locally declared in the driver as a macro with respective name.

Yes this can be simplified and doing that in updated patchset.  Only this
API call is needed in dw_spi_elba_init().

syscon_regmap_lookup_by_phandle(np, "pensando,syscon");

Regards,
Brad