PCI: qcom: Allow ASPM L1 and substates for 2.7.0

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Allow ASPM L1 and its substates.  By default this is disabled in the qcom
specific hardware.  Enable it explicitly only for controllers belonging to
2_7_0.

This does not affect any link capability registers; it will allow the link
transitions to L1 and its substates only if they are already supported.

Link: https://lore.kernel.org/r/1657886366-32685-1-git-send-email-quic_krichai@quicinc.com
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>

...

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Krishna chaitanya chundru 2022-07-15 17:29:25 +05:30 • committed by Bjorn Helgaas

parent 839fbdee4c

commit 5147ba8af2

1 changed files with 8 additions and 0 deletions

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drivers/pci/controller/dwc/pcie-qcom.c

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