Re: [PATCH v3 2/3] arm64: dts: qcom: Add Eliza-specific PM7750BA dtsi

[Abel Vesa]

On 26-05-13 01:33:27, Alexander Koskovich wrote:
> On Tuesday, May 12th, 2026 at 8:32 AM, Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx> wrote:
> 
> > On Eliza, the SPMI arbiter supports multiple bus masters, requiring
> > explicit selection of the master for each PMIC.
> > 
> > The existing PM7750BA dtsi does not provide a way to describe this,
> > so introduce an Eliza-specific variant with the appropriate bus
> > configuration.
> > 
> > This duplication is required due to hardware differences in how the
> > SPMI bus is exposed on this platform.
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
> 
> Was wondering if it might be easier to do something like this instead?
> 
> eliza-mtp.dts:
> ```
> #define PM7550BA_SPMI_BUS &spmi_bus0
> ```
> 
> pm7550ba.dtsi:
> ```
> PM7550BA_SPMI_BUS {
>     pm7550ba: pmic@7 {
> ...
>     };
> };
> ```
> 
> That way you wouldn't have to duplicate entire file, but don't know if this has
> already been discussed previously.

The suggestion for duplication came from here:

https://lore.kernel.org/all/b784387b-5744-422e-92f5-3d575a24d01c@xxxxxxxxxx/