[PATCH 0/2] PCI: qcom: Switch to bus notifier for enabling ASPM of PCI devices

Hi,

This series switches the Qcom PCIe controller driver to bus notifier for enabling ASPM (and updating OPP) for PCI devices. This series is intented to fix the ASPM regression reported (offlist) on the Qcom compute platforms running Linux. It turned out that the ASPM enablement logic in the Qcom controller driver had a flaw that got triggered by the recent changes to the pwrctrl framework (more details in patch 1/1).

Testing -------

I've tested this series on Thinkpad T14s laptop and able to observe ASPM state changes (through controller debugfs entry and lspci) for the WLAN device.

Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@oss.qualcomm.com --- Manivannan Sadhasivam (2): PCI: qcom: Switch to bus notifier for enabling ASPM of PCI devices PCI: qcom: Move qcom_pcie_icc_opp_update() to notifier callback

drivers/pci/controller/dwc/pcie-qcom.c | 73 ++++++++++++++++++---------------- 1 file changed, 38 insertions(+), 35 deletions(-) --- base-commit: 00f0defc332be94b7f1fdc56ce7dcb6528cdf002 change-id: 20250714-aspm_fix-eed392631c8f

Best regards,