linux-kernel - Re: [PATCH v1] Bluetooth: hci_qca: Request Tx clock vote off only when Tx is pending

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Date:   Fri, 12 Jun 2020 15:19:30 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Balakrishna Godavarthi <bgodavar@...eaurora.org>
Cc:     Johan Hedberg <johan.hedberg@...il.com>, mka@...omium.org,
        linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        hemantg@...eaurora.org, linux-arm-msm@...r.kernel.org,
        abhishekpandit@...omium.org, rjliao@...eaurora.org,
        gubbaven@...eaurora.org
Subject: Re: [PATCH v1] Bluetooth: hci_qca: Request Tx clock vote off only
 when Tx is pending

Hi Balakrishna,

> Tx pending flag is set to true when HOST IBS state is AWAKE or
> AWAKEING. If IBS state is ASLEEP, then Tx clock is already voted
> off. To optimize further directly calling serial_clock_vote()
> instead of qca_wq_serial_tx_clock_vote_off(), at this point of
> qca_suspend() already data is sent out. No need to wake up hci to
> send data.
> 
> Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
> ---
> drivers/bluetooth/hci_qca.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel