Re: [PATCH 1/4] dt-bindings: rtc: add schema for NXP S32G2/S32G3 SoCs

[Ciprian Marian Costea]

On 9/12/2024 2:13 PM, Conor Dooley wrote:
> On Thu, Sep 12, 2024 at 01:55:34PM +0300, Ciprian Marian Costea wrote:
> > On 9/11/2024 9:22 PM, Conor Dooley wrote:
> > > On Wed, Sep 11, 2024 at 10:00:25AM +0300, Ciprian Costea wrote:
> > > > From: Ciprian Marian Costea <ciprianmarian.costea@xxxxxxxxxxx>
> > > >
> > > > This patch adds the dt-bindings for NXP S32G2/S32G3 SoCs RTC driver.
> > >
> > > > +properties:
> > > > +  compatible:
> > > > +    const: nxp,s32g-rtc
> > >
> > > Also, how come there are not specific compatibles for the two SoCs
> > > supported here?
> >
> > Hello Conor,
> >
> > The RTC module is the same for S32G2 and S32G3 SoCs.
> > Therefore, I did not wanted to add two compatible strings ('nxp,s32g2-rtc'
> > and 'nxp,s32g3-rtc') when there is no actual difference which they could
> > target.
>
> Are these different fusings of the same silicon, or are they distinctly
> different SoCs that happen to share an IP block?

S32G2 and S32G3 are different SoCs that share the RTC IP block.

> > Furthermore, in the future I plan to refactor the common part from [1] and
> > [2] files into 's32g.dtsi'. Maybe then such common compatible strings would
> > make more sense.
> >
> > [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/freescale/s32g2.dtsi
> >
> > [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/freescale/s32g3.dtsi
> >
> > Regards,
> > Ciprian