Re: [PATCH v1 1/4] dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Add vdda-refgen and refgen supply properties
Krzysztof Kozlowski <[email protected]>
| Newsgroups | org.infradead.lists.linux-phy,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <20260814-quaint-memorable-goshawk-e6aaf1@quoll> |
On Mon, Aug 10, 2026 at 07:27:32PM +0800, Ziyue Zhang wrote: > QCS8300 and SA8775p PCIe PHYs require dedicated vdda-refgen and refgen > LDO supplies for QREF to provide a stable reference clock. Without these > supplies, the PCIe PHYs cannot work properly. Mark them as required for > the affected compatibles even though it breaks ABI. > > vdda-refgen-supply is required for all three QCS8300 and SA8775p PHY > compatibles. refgen-supply is required for QCS8300 only, as a workaround > for a hardware issue where QREF actually depends on refgen3 rather than > refgen2 as documented, so the PHY driver votes for refgen3 directly via > this supply. > > Signed-off-by: Ziyue Zhang <[email protected]> > --- > .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml | 27 +++++++++++++++++++ > 1 file changed, 27 insertions(+) Reviewed-by: Krzysztof Kozlowski <[email protected]> Best regards, Krzysztof -- linux-phy mailing list [email protected] https://lists.infradead.org/mailman/listinfo/linux-phy