Re: [PATCH] PCI: qcom: Disable ASPM L0s for SA8775P

[Manivannan Sadhasivam]

On Sun, 19 Apr 2026 17:39:34 +0800, Shawn Guo wrote:
> Commit f5cd8a929c82 ("PCI: dwc: Remove MSI/MSIX capability for Root Port
> if iMSI-RX is used as MSI controller") removed MSI/MSI-X capabilities
> from the Root Port on platforms using iMSI-RX (including SA8775P, which
> has no msi-parent/msi-map in DT).  This causes PME and AER service
> drivers to fall back from MSI to INTx.
> 
> With INTx-based PME active, the QCN9100 modem endpoint sends PME messages
> during D-state transitions early in boot.  The level-triggered INTx
> assertion coincides with ASPM L0s exit sequencing on SA8775P hardware,
> causing Data Link Layer Replay Timer Timeout errors on both sides of the
> link.
> 
> [...]

Applied, thanks!

[1/1] PCI: qcom: Disable ASPM L0s for SA8775P
      commit: 29f692985819f4089f02a86e151a72f6d4cdd90d

Best regards,
-- 
Manivannan Sadhasivam <mani@xxxxxxxxxx>