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xhci:fix issue with resume from system Sx state in zhaoxin platform

Message ID 20230420093603.3344-1-WeitaoWang-oc@zhaoxin.com
State New
Headers show
Series xhci:fix issue with resume from system Sx state in zhaoxin platform | expand

Commit Message

Weitao Wang April 20, 2023, 9:36 a.m. UTC 
On Zhaoxin ZX-100 project, xHCI can't work normally after resume
from system Sx state. To fix this issue, when resume from system
Sx state, reinitialize xHCI instead of restore.

Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com>
---
 drivers/usb/host/xhci-pci.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 6db07ca419c3..b0f0ed088f81 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -334,6 +334,9 @@  static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	     pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
 		xhci->quirks |= XHCI_NO_SOFT_RETRY;
 
+	if (pdev->vendor == PCI_VENDOR_ID_ZHAOXIN && pdev->device == 0x9202)
+		xhci->quirks |= XHCI_RESET_ON_RESUME;
+
 	/* xHC spec requires PCI devices to support D3hot and D3cold */
 	if (xhci->hci_version >= 0x120)
 		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;