[PATCH] wifi: rtw88: disable ASPM and deep PS on ASUS TUF Gaming A15 FA506II

[Mihail Dimoski <mihaildimoski@gmail.com>]

The RTL8822CE on the ASUS TUF Gaming A15 FA506II wedges during normal
use. The driver watchdog toggles PCIe ASPM while leaving power save;
the DBI read of the ASPM link-config register fails with -EIO, the PCIe
link becomes unstable, and the device drops off the bus, taking Wi-Fi
down until a cold power cycle:

  rtw88_8822ce 0000:03:00.0: failed to read ASPM, ret=-5
  rtw88_8822ce 0000:03:00.0: firmware failed to leave lps state
  rtw88_8822ce 0000:03:00.0: mac power on failed

This is the same platform ASPM inter-operability problem already
handled for other machines through rtw_pci_quirks[]. Disabling PCI
ASPM and deep power save on this model stops the failure. Add a DMI
quirk so the workaround is applied automatically.

Signed-off-by: Mihail Dimoski <mihaildimoski@gmail.com>
---
 drivers/net/wireless/realtek/rtw88/pci.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index a304672..2c4f123 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.c
+++ b/drivers/net/wireless/realtek/rtw88/pci.c
@@ -1779,6 +1779,16 @@ static const struct dmi_system_id rtw_pci_quirks[] = {
 		.driver_data = (void *)(BIT(QUIRK_DIS_CAP_PCI_ASPM) |
 					BIT(QUIRK_DIS_CAP_LPS_DEEP)),
 	},
+	{
+		.callback = rtw_pci_disable_caps,
+		.ident = "ASUS TUF Gaming A15 FA506II",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "FA506II"),
+		},
+		.driver_data = (void *)(BIT(QUIRK_DIS_CAP_PCI_ASPM) |
+					BIT(QUIRK_DIS_CAP_LPS_DEEP)),
+	},
 	{}
 };
 
-- 
2.53.0