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SubjectRe: [PATCH] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop
On Sat, Feb 20, 2021 at 04:46:02PM +0800, Hao Chen wrote:
> When the laptop HONOR MagicBook 14 sleep to S3/S4, the laptop can't
> resume.
> The dmesg of kernel report:
> "[ 99.990168] pcieport 0000:00:01.2: can't change power state
> from D3hot to D0 (config space inaccessible)
> [ 99.993334] rtw_pci 0000:01:00.0: can't change power state
> from D3hot to D0 (config space inaccessible)
> [ 104.435004] rtw_pci 0000:01:00.0: mac power on failed
> [ 104.435010] rtw_pci 0000:01:00.0: failed to power on mac"
> When try to pointer the driver.pm to NULL, the problem is fixed.
> This driver hasn't implemented pm ops yet.It makes the sleep and
> wake procedure expected when pm's ops not NULL.
>
> Fixed: commit e3037485c68e ("rtw88: new Realtek 802.11ac driver")
>
> Signed-off-by: Hao Chen <chenhaoa@uniontech.com>
> ---
> drivers/net/wireless/realtek/rtw88/rtw8822ce.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> index 3845b1333dc3..b4c6762ba7ac 100644
> --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> @@ -25,7 +25,7 @@ static struct pci_driver rtw_8822ce_driver = {
> .id_table = rtw_8822ce_id_table,
> .probe = rtw_pci_probe,
> .remove = rtw_pci_remove,
> - .driver.pm = &rtw_pm_ops,
> + .driver.pm = NULL,

The NULL is the default, it is enough to delete ".driver.pm = &rtw_pm_ops," line.

Thanks

> .shutdown = rtw_pci_shutdown,
> };
> module_pci_driver(rtw_8822ce_driver);
> --
> 2.20.1
>
>
>

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