[PATCH v2 0/3] Add support for the REFGEN in the IPQ9650 SoC

[Kathiravan Thirumoorthy]

IPQ9650 SoC has 2 REFGEN blocks providing the reference current to
the PCIe and USB, UNIPHY PHYs. For the other SoCs, clocks for this block
is enabled on power up but that's not the case for IPQ9650 and we have
to explicitly enable those clocks.

Document the same and add support for it.

Correct the regulator type to REGULATOR_CURRENT, as the REFGEN block
supplies the reference current to PHYs in the SoC, per the REFGEN IP
team, aligning it with the hardware behavior.

Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@xxxxxxxxxxxxxxxx>
---
Changes in v2:
- New patch 1/3 - change the regulator type to align with HW behavior
- Add the constraints for clock and clock-names property in the binding
- Read the REFGEN_STATUS register to find out the regulator is enabled
- Dropped the unused slab.h
- Link to v1: https://patch.msgid.link/20260602-ipq9650_refgen-v1-0-55e2afa5ff64@xxxxxxxxxxxxxxxx

To: Liam Girdwood <lgirdwood@xxxxxxxxx>
To: Mark Brown <broonie@xxxxxxxxxx>
To: Rob Herring <robh@xxxxxxxxxx>
To: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
To: Conor Dooley <conor+dt@xxxxxxxxxx>
To: Konrad Dybcio <konradybcio@xxxxxxxxxx>
Cc: linux-arm-msm@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx

---
Kathiravan Thirumoorthy (3):
      regulator: qcom-refgen: correct the regulator type to CURRENT
      regulator: dt-bindings: qcom,sdm845-refgen-regulator: Document IPQ9650
      regulator: qcom-refgen: add support for the IPQ9650 SoC

 .../regulator/qcom,sdm845-refgen-regulator.yaml    | 25 ++++++
 drivers/regulator/qcom-refgen-regulator.c          | 93 ++++++++++++++++++++--
 2 files changed, 112 insertions(+), 6 deletions(-)
---
base-commit: abe651837cb394f76d738a7a747322fca3bf17ba
change-id: 20260520-ipq9650_refgen-196b570d8bc0

Best regards,
--  
Kathiravan Thirumoorthy <kathiravan.thirumoorthy@xxxxxxxxxxxxxxxx>