[PATCH v4 1/6] PCI: dwc: Remove the L1SS check before putting the link into L2

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Since this L1SS check is just an encapsulation problem, and the ASPM
shouldn't leak out here. Remove the L1SS check during L2 entry.

Fixes: 4774faf854f5 ("PCI: dwc: Implement generic suspend/resume functionality")
Signed-off-by: Richard Zhu <hongxing.zhu@xxxxxxx>
---
 drivers/pci/controller/dwc/pcie-designware-host.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 952f8594b5012..1e130091d62a0 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -1009,13 +1009,6 @@ int dw_pcie_suspend_noirq(struct dw_pcie *pci)
 	u32 val;
 	int ret;
 
-	/*
-	 * If L1SS is supported, then do not put the link into L2 as some
-	 * devices such as NVMe expect low resume latency.
-	 */
-	if (dw_pcie_readw_dbi(pci, offset + PCI_EXP_LNKCTL) & PCI_EXP_LNKCTL_ASPM_L1)
-		return 0;
-
 	if (pci->pp.ops->pme_turn_off) {
 		pci->pp.ops->pme_turn_off(&pci->pp);
 	} else {
-- 
2.37.1





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