[PATCH v5 6/6] PCI: qcom: Enable ASPM disabling during link retraining

Manivannan Sadhasivam mani at kernel.org
Tue Sep 1 01:08:30 PDT 2026


On Wed, Aug 19, 2026 at 06:55:57PM +0530, Krishna Chaitanya Chundru wrote:
> Set the disable_aspm_for_retrain flag in qcom_pcie_host_init() to ensure
> ASPM is disabled during link retraining operations. This prevents potential
> issues with link state transitions during bandwidth scaling on Qualcomm
> PCIe controllers.
> 

Is it really a controller requirement or a device quirk?

> Signed-off-by: Krishna Chaitanya Chundru <krishnac at codeaurora.org>

You need to use OSS email.

- Mani

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