wifi: ath11k: apply existing PM quirk to ThinkPad P14s Gen 5 AMD

[PATCH v2] wifi: ath11k: apply existing PM quirk to ThinkPad P14s Gen 5 AMD

Posted by Kyle Farnung via B4 Relay 1 day, 4 hours ago

From: Kyle Farnung <kfarnung@gmail.com>

Some ThinkPad P14s Gen 5 AMD systems experience suspend/resume
reliability issues similar to those reported in [1]. These platforms
were not previously included in the ath11k PM quirk table.

Add DMI matches for product IDs 21ME and 21MF to apply the existing
ATH11K_PM_WOW override, improving suspend/resume behavior on these
systems.

Tested on a ThinkPad P14s Gen 5 AMD (21ME) running 6.19.9.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=219196
[2] https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-p-series-laptops/thinkpad-p14s-gen-5-type-21me-21mf/

Fixes: ce8669a27016 ("wifi: ath11k: determine PM policy based on machine model")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Farnung <kfarnung@gmail.com>
---
Changes in v2:
- Fix missing mailing list recipients (linux-wireless, ath11k, linux-kernel)
- Link to v1: https://lore.kernel.org/r/20260330-p14s-pm-quirk-v1-1-cf2fa39cc2d5@gmail.com
---
 drivers/net/wireless/ath/ath11k/core.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 3f6f4db5b7ee1aba79fd7526e5d59d068e0f4a2e..21d366224e75904feeae6cb9c93d9ef692d127fe 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -1041,6 +1041,20 @@ static const struct dmi_system_id ath11k_pm_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "21D5"),
 		},
 	},
+	{
+		.driver_data = (void *)ATH11K_PM_WOW,
+		.matches = { /* P14s G5 AMD #1 */
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "21ME"),
+		},
+	},
+	{
+		.driver_data = (void *)ATH11K_PM_WOW,
+		.matches = { /* P14s G5 AMD #2 */
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "21MF"),
+		},
+	},
 	{}
 };
 

---
base-commit: dbd94b9831bc52a1efb7ff3de841ffc3457428ce
change-id: 20260330-p14s-pm-quirk-0a51ba19235f

Best regards,
-- 
Kyle Farnung <kfarnung@gmail.com>

Re: [PATCH v2] wifi: ath11k: apply existing PM quirk to ThinkPad P14s Gen 5 AMD

Posted by Baochen Qiang 9 hours ago


On 3/31/2026 2:32 PM, Kyle Farnung via B4 Relay wrote:
> From: Kyle Farnung <kfarnung@gmail.com>
> 
> Some ThinkPad P14s Gen 5 AMD systems experience suspend/resume
> reliability issues similar to those reported in [1]. These platforms

how similar it is? can you describe the issue in details?

> were not previously included in the ath11k PM quirk table.
> 
> Add DMI matches for product IDs 21ME and 21MF to apply the existing
> ATH11K_PM_WOW override, improving suspend/resume behavior on these
> systems.
> 
> Tested on a ThinkPad P14s Gen 5 AMD (21ME) running 6.19.9.
> 
> [1] https://bugzilla.kernel.org/show_bug.cgi?id=219196
> [2] https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-p-series-laptops/thinkpad-p14s-gen-5-type-21me-21mf/
> 
> Fixes: ce8669a27016 ("wifi: ath11k: determine PM policy based on machine model")
> Cc: stable@vger.kernel.org
> Signed-off-by: Kyle Farnung <kfarnung@gmail.com>
> ---
> Changes in v2:
> - Fix missing mailing list recipients (linux-wireless, ath11k, linux-kernel)
> - Link to v1: https://lore.kernel.org/r/20260330-p14s-pm-quirk-v1-1-cf2fa39cc2d5@gmail.com
> ---
>  drivers/net/wireless/ath/ath11k/core.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
> index 3f6f4db5b7ee1aba79fd7526e5d59d068e0f4a2e..21d366224e75904feeae6cb9c93d9ef692d127fe 100644
> --- a/drivers/net/wireless/ath/ath11k/core.c
> +++ b/drivers/net/wireless/ath/ath11k/core.c
> @@ -1041,6 +1041,20 @@ static const struct dmi_system_id ath11k_pm_quirk_table[] = {
>  			DMI_MATCH(DMI_PRODUCT_NAME, "21D5"),
>  		},
>  	},
> +	{
> +		.driver_data = (void *)ATH11K_PM_WOW,
> +		.matches = { /* P14s G5 AMD #1 */
> +			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "21ME"),
> +		},
> +	},
> +	{
> +		.driver_data = (void *)ATH11K_PM_WOW,
> +		.matches = { /* P14s G5 AMD #2 */
> +			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "21MF"),
> +		},
> +	},
>  	{}
>  };
>  
> 
> ---
> base-commit: dbd94b9831bc52a1efb7ff3de841ffc3457428ce
> change-id: 20260330-p14s-pm-quirk-0a51ba19235f
> 
> Best regards,

Re: [PATCH v2] wifi: ath11k: apply existing PM quirk to ThinkPad P14s Gen 5 AMD

Posted by Kyle Farnung 7 hours ago

On Tue, Mar 31, 2026 at 7:08 PM Baochen Qiang
<baochen.qiang@oss.qualcomm.com> wrote:
>
>
>
> On 3/31/2026 2:32 PM, Kyle Farnung via B4 Relay wrote:
> > From: Kyle Farnung <kfarnung@gmail.com>
> >
> > Some ThinkPad P14s Gen 5 AMD systems experience suspend/resume
> > reliability issues similar to those reported in [1]. These platforms
>
> how similar it is? can you describe the issue in details?

The issue is that intermittently after suspend my WiFi adapter connects
successfully for a few minutes and then drops. It will then keep trying to
reconnect in a loop but never succeed. A reboot will fix it, but eventually
I found that reloading the module also resolves the issue
(modprobe -r ath11k_pci && modprobe ath11k_pci). Based on some searching, I
did try adding "ath11k_pci.disable_idle_ps=1" to my kernel arguments. At
first it looked like maybe it worked, but then I hit the same problem
again. At that point I decided to try building a custom module with the
ATH11K_PM_WOW override and so far I'm two days and 10 suspends in without
issue.

Looking through kernel logs, the issue appears to have started with kernel
version 6.17.4. It looks like my Fedora install jumped from 6.16.10 to
6.17.4 on October 22, 2025 and I started seeing the issue two days later.

Here are the logs from the most recent occurrence (filtered for brevity):

Mar 29 15:26:24 kjfp14sg5 kernel: PM: suspend exit
Mar 29 15:26:24 kjfp14sg5 kernel: ath11k_pci 0000:02:00.0: chip_id
0x12 chip_family 0xb board_id 0xff soc_id 0x400c1211
Mar 29 15:26:24 kjfp14sg5 kernel: ath11k_pci 0000:02:00.0: fw_version
0x11088c35 fw_build_timestamp 2024-04-17 08:34 fw_build_id
WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
Mar 29 15:26:30 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=COUNTRY alpha2=US
Mar 29 15:26:30 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=COUNTRY alpha2=US
Mar 29 15:26:30 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=COUNTRY alpha2=US
Mar 29 15:26:35 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-CONNECTED - Connection to 68:d7:9a:2a:94:f8 completed [id=0
id_str=]
Mar 29 15:26:49 kjfp14sg5 wpa_supplicant[2373]: wlp2s0: CTRL-EVENT-BEACON-LOSS
Mar 29 15:26:55 kjfp14sg5 kernel: ath11k_pci 0000:02:00.0: failed to
flush transmit queue, data pkts pending 9
Mar 29 15:26:55 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-DISCONNECTED bssid=68:d7:9a:2a:94:f8 reason=4
locally_generated=1
Mar 29 15:27:00 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-DISCONNECTED bssid=80:2a:a8:98:26:3e reason=6
Mar 29 15:27:05 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-DISCONNECTED bssid=74:ac:b9:df:54:36 reason=6
Mar 29 15:27:09 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-DISCONNECTED bssid=68:d7:9a:2a:94:f8 reason=2
Mar 29 15:27:09 kjfp14sg5 wpa_supplicant[2373]: wlp2s0:
CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="Batman" auth_failures=1
duration=10 reason=CONN_FAILED

>
> > were not previously included in the ath11k PM quirk table.
> >
> > Add DMI matches for product IDs 21ME and 21MF to apply the existing
> > ATH11K_PM_WOW override, improving suspend/resume behavior on these
> > systems.
> >
> > Tested on a ThinkPad P14s Gen 5 AMD (21ME) running 6.19.9.
> >
> > [1] https://bugzilla.kernel.org/show_bug.cgi?id=219196
> > [2] https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-p-series-laptops/thinkpad-p14s-gen-5-type-21me-21mf/
> >
> > Fixes: ce8669a27016 ("wifi: ath11k: determine PM policy based on machine model")
> > Cc: stable@vger.kernel.org
> > Signed-off-by: Kyle Farnung <kfarnung@gmail.com>
> > ---
> > Changes in v2:
> > - Fix missing mailing list recipients (linux-wireless, ath11k, linux-kernel)
> > - Link to v1: https://lore.kernel.org/r/20260330-p14s-pm-quirk-v1-1-cf2fa39cc2d5@gmail.com
> > ---
> >  drivers/net/wireless/ath/ath11k/core.c | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> >
> > diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
> > index 3f6f4db5b7ee1aba79fd7526e5d59d068e0f4a2e..21d366224e75904feeae6cb9c93d9ef692d127fe 100644
> > --- a/drivers/net/wireless/ath/ath11k/core.c
> > +++ b/drivers/net/wireless/ath/ath11k/core.c
> > @@ -1041,6 +1041,20 @@ static const struct dmi_system_id ath11k_pm_quirk_table[] = {
> >                       DMI_MATCH(DMI_PRODUCT_NAME, "21D5"),
> >               },
> >       },
> > +     {
> > +             .driver_data = (void *)ATH11K_PM_WOW,
> > +             .matches = { /* P14s G5 AMD #1 */
> > +                     DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "21ME"),
> > +             },
> > +     },
> > +     {
> > +             .driver_data = (void *)ATH11K_PM_WOW,
> > +             .matches = { /* P14s G5 AMD #2 */
> > +                     DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
> > +                     DMI_MATCH(DMI_PRODUCT_NAME, "21MF"),
> > +             },
> > +     },
> >       {}
> >  };
> >
> >
> > ---
> > base-commit: dbd94b9831bc52a1efb7ff3de841ffc3457428ce
> > change-id: 20260330-p14s-pm-quirk-0a51ba19235f
> >
> > Best regards,
>