Re: [PATCH 4/6] arm64: dts: qcom: nord: Add PMAU0102 and PMM8650AU PMIC support

[Shawn Guo <shengchao.guo@oss.qualcomm.com>]

On Wed, Sep 02, 2026 at 04:17:26PM +0200, Konrad Dybcio wrote:
> On 8/31/26 5:21 AM, Shawn Guo wrote:
> > From: Dhruvin Rajpura <drajpura@qti.qualcomm.com>
> > 
> > The Nord platform is supplied by two families of PMICs on the SPMI bus:
> > eight PMAU0102 devices on USIDs 4 to 11, and one PMM8650AU on USID 0.
> > Add one dtsi per PMIC type, following the established one-file-per-PMIC
> > convention, and include both of them from nord-rrd.dts.
> > 
> > The eight PMAU0102 instances are labelled pmau0102_e through pmau0102_l
> > after their board designators. Each one provides a GPIO controller, an
> > ADC, and an MBG (Master Bandgap) temperature monitor that reads its die
> > temperature through a DIE_TEMP ADC channel. The monitors use the
> > qcom,pmau0102-mbg-tm compatible with qcom,pm8775-mbg-tm as fallback, and
> > each is hooked up to a thermal zone.
> > 
> > PMM8650AU is the same die as PMM8654AU, so pmm8650au_a reuses the
> > existing qcom,pmm8654au and qcom,pmm8654au-gpio compatibles while the
> > file is named after the part actually populated on the board. It provides
> > PON with a power key, an RTC, and a GPIO controller. The resin
> > is described but left disabled, for boards that wire it up to enable.
> > 
> > Signed-off-by: Dhruvin Rajpura <drajpura@qti.qualcomm.com>
> > Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
> > ---
> 
> [...]
> 
> > +		pmm8650au_a_pon: pon@1200 {
> > +			compatible = "qcom,pmk8350-pon";
> 
> I think this may fall into the same bucket
> 
> https://lore.kernel.org/all/20260724-b4-add_pwrkey_and_resin-v6-1-41acc214d93a@oss.qualcomm.com/

Ah, thanks for the pointer! I missed that.

Since PMM8650AU is the same die as PMM8654AU, I would reuse pmm8654au
compatibles, e.g.

	compatible = "qcom,pmm8654au-pon", "qcom,pmk8350-pon";

Shawn