Re: [PATCH v5 06/11] Bluetooth: hci_qca: Set 'bt_en_available' based on pwrseq power controllability

[Manivannan Sadhasivam]

On Mon, Jul 20, 2026 at 10:04:08AM +0200, Loic Poulain wrote:
> A Bluetooth device only needs the non-persistent setup if the host can
> gate its power, so that it is actually reset on the next power-on. When the
> power is controlled by a power sequencer, whether the host can gate it
> depends on the hardware wiring, e.g. the presence of the BT_EN or
> W_DISABLE2# line.
> 
> Query the generic pwrseq_is_controllable() helper whenever the BT power
> comes from a sequencer, regardless of which provider it is (M2, WCN, ...).
> If the power is not controllable, clear 'bt_en_available' so that
> HCI_QUIRK_NON_PERSISTENT_SETUP is not set.
> 
> This is based on Manivannan's original patch that keyed the decision off
> the W_DISABLE2# device tree property, it now uses the generic pwrseq helper
> and handles the always-on case.
> 
> Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>

- Mani

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