Hi,
On 11/8/21 07:06, Slark Xiao wrote:
> When WWAN device wake from S3 deep, under thinkpad platform,
> WWAN would be disabled. This disable status could be checked
> by command 'nmcli r wwan' or 'rfkill list'.
>
> Issue analysis as below:
> When host resume from S3 deep, thinkpad_acpi driver would
> call hotkey_resume() function. Finnaly, it will use
> wan_get_status to check the current status of WWAN device.
> During this resume progress, wan_get_status would always
> return off even WWAN boot up completely.
> In patch V2, Hans said 'sw_state should be unchanged
> after a suspend/resume. It's better to drop the
> tpacpi_rfk_update_swstate call all together from the
> resume path'.
> And it's confimed by Lenovo that GWAN is no longer
> available from WHL generation because the design does not
> match with current pin control.
>
> Signed-off-by: Slark Xiao <slark_x...@163.com>
Thanks, patch looks good to me:
Reviewed-by: Hans de Goede <hdego...@redhat.com>
I will merge this once 5.16-rc1 is out.
Regards,
Hans
> ---
> drivers/platform/x86/thinkpad_acpi.c | 12 ------------
> 1 file changed, 12 deletions(-)
>
> diff --git a/drivers/platform/x86/thinkpad_acpi.c
> b/drivers/platform/x86/thinkpad_acpi.c
> index 50ff04c84650..f1cbd27282e1 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -1178,15 +1178,6 @@ static int tpacpi_rfk_update_swstate(const struct
> tpacpi_rfk *tp_rfk)
> return status;
> }
>
> -/* Query FW and update rfkill sw state for all rfkill switches */
> -static void tpacpi_rfk_update_swstate_all(void)
> -{
> - unsigned int i;
> -
> - for (i = 0; i < TPACPI_RFK_SW_MAX; i++)
> - tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]);
> -}
> -
> /*
> * Sync the HW-blocking state of all rfkill switches,
> * do notice it causes the rfkill core to schedule uevents
> @@ -3129,9 +3120,6 @@ static void tpacpi_send_radiosw_update(void)
> if (wlsw == TPACPI_RFK_RADIO_OFF)
> tpacpi_rfk_update_hwblock_state(true);
>
> - /* Sync sw blocking state */
> - tpacpi_rfk_update_swstate_all();
> -
> /* Sync hw blocking state last if it is hw-unblocked */
> if (wlsw == TPACPI_RFK_RADIO_ON)
> tpacpi_rfk_update_hwblock_state(false);
>
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