Re: [PATCH V2 3/8] Bluetooth: btnxpuart: Add M.2 Bluetooth device support using pwrseq
From: Bartosz Golaszewski
Date: Tue Jun 23 2026 - 04:35:13 EST
On Tue, 23 Jun 2026 05:07:30 +0200, "Sherry Sun (OSS)"
<sherry.sun@xxxxxxxxxxx> said:
> From: Sherry Sun <sherry.sun@xxxxxxx>
>
> Power supply to the M.2 Bluetooth device attached to the host using M.2
> connector is controlled using the 'uart' pwrseq device. So add support for
> getting the pwrseq device if the OF graph link is present. Once obtained,
> pwrseq_power_on() is called to power up the M.2 Bluetooth card. The power
> sequencer descriptor is obtained via devm_pwrseq_get(), so the power-off
> and cleanup are handled automatically when the device is unbound.
>
> Signed-off-by: Sherry Sun <sherry.sun@xxxxxxx>
> ---
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>