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

[Alexander Koskovich]

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.

Thanks,
Alex