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Subject: Re: [RESEND v1 0/2] Close UART port if NON_PERSISTENT_SETUP is set
From:   Marcel Holtmann <marcel@holtmann.org>
In-Reply-To: <1599733843-20311-1-git-send-email-gubbaven@codeaurora.org>
Date:   Fri, 11 Sep 2020 09:10:39 +0200
Cc:     Johan Hedberg <johan.hedberg@gmail.com>,
        Matthias Kaehlcke <mka@chromium.org>,
        open list <linux-kernel@vger.kernel.org>,
        linux-bluetooth <linux-bluetooth@vger.kernel.org>,
        Hemantg <hemantg@codeaurora.org>,
        MSM <linux-arm-msm@vger.kernel.org>,
        Balakrishna Godavarthi <bgodavar@codeaurora.org>,
        rjliao@codeaurora.org, hbandi@codeaurora.org,
        abhishekpandit@chromium.org
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Message-Id: <C4C12227-FA4E-47F9-A161-6ADE490AAA91@holtmann.org>
References: <1599733843-20311-1-git-send-email-gubbaven@codeaurora.org>
To:     Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Sender: linux-bluetooth-owner@vger.kernel.org
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Hi Venkata,

> When HCI_QUIRK_NON_PERSISTENT_SETUP is set by drivers,
> it indicates that BT SoC will be completely powered OFF
> during BT OFF. On next BT ON firmware must be downloaded
> again. Holding UART port open during BT OFF is draining
> the battery. Now during BT OFF, UART port is closed if
> qurik HCI_QUIRK_NON_PERSISTENT_SETUP is set by clearing
> HCI_UART_PROTO_READY proto flag. On next BT ON, UART
> port is opened if HCI_UART_PROTO_READY proto flag is cleared.
> 
> Venkata Lakshmi Narayana Gubba (2):
>  Bluetooth: hci_serdev: Close UART port if NON_PERSISTENT_SETUP is set
>  Bluetooth: hci_qca: Remove duplicate power off in proto close
> 
> drivers/bluetooth/hci_qca.c    |  5 ++---
> drivers/bluetooth/hci_serdev.c | 36 +++++++++++++++++++++++++++++++++---
> 2 files changed, 35 insertions(+), 6 deletions(-)

both patches have been applied to bluetooth-next tree.

Regards

Marcel