> -----Original Message-----
> From: Yu-Tung Chang <mtwget@xxxxxxxxx>
> Sent: Friday, December 24, 2021 2:49 PM
> To: tony0620emma@xxxxxxxxx
> Cc: kvalo@xxxxxxxxxx; davem@xxxxxxxxxxxxx; kuba@xxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx;
> netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Yu-Tung Chang <mtwget@xxxxxxxxx>
> Subject: [PATCH] rtw88: add quirk to disable pci caps on HP Slim Desktop S01-pF1000i
>
> 8821CE causes random freezes on HP Slim Desktop S01-pF1000i. Add a quirk
> to disable pci ASPM capability.
>
> Signed-off-by: Yu-Tung Chang <mtwget@xxxxxxxxx>
> ---
> drivers/net/wireless/realtek/rtw88/pci.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
> index a7a6ebfaa203..f8999d7dee61 100644
> --- a/drivers/net/wireless/realtek/rtw88/pci.c
> +++ b/drivers/net/wireless/realtek/rtw88/pci.c
> @@ -1738,6 +1738,15 @@ static const struct dmi_system_id rtw88_pci_quirks[] = {
> },
> .driver_data = (void *)BIT(QUIRK_DIS_PCI_CAP_ASPM),
> },
> + {
> + .callback = disable_pci_caps,
> + .ident = "HP HP Slim Desktop S01-pF1xxx",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "HP"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "HP Slim Desktop S01-pF1xxx"),
> + },
> + .driver_data = (void *)BIT(QUIRK_DIS_PCI_CAP_ASPM),
> + },
> {}
> };
>
A patch [1] is merged to fix freezes of 8821ce.
[1] https://lore.kernel.org/all/20211215114635.333767-1-kai.heng.feng@xxxxxxxxxxxxx/
--
Ping-Ke
