linux-kernel - Re: [PATCH v2 1/2] Bluetooth: Bluetooth: btmtksdio: handle runtime pm only when sdio

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Message-Id: <D82A5F07-0E51-444C-9179-17AD75F7107D@holtmann.org>
Date:   Fri, 3 Dec 2021 22:08:06 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Sean Wang <sean.wang@...iatek.com>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        "Mark-YW Chen (陳揚文)" 
        <Mark-YW.Chen@...iatek.com>, Soul.Huang@...iatek.com,
        YN.Chen@...iatek.com, Leon.Yen@...iatek.com,
        Eric-SY.Chang@...iatek.com, Deren.Wu@...iatek.com,
        km.lin@...iatek.com, robin.chiu@...iatek.com,
        Eddie.Chen@...iatek.com, ch.yeh@...iatek.com,
        posh.sun@...iatek.com, ted.huang@...iatek.com,
        Eric.Liang@...iatek.com, Stella.Chang@...iatek.com,
        Tom.Chou@...iatek.com, steve.lee@...iatek.com, jsiuda@...gle.com,
        frankgor@...gle.com, jemele@...gle.com, abhishekpandit@...gle.com,
        michaelfsun@...gle.com, mcchou@...omium.org, shawnku@...gle.com,
        linux-bluetooth@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] Bluetooth: Bluetooth: btmtksdio: handle runtime pm
 only when sdio_func is available

Hi Sean,

> Runtime pm ops is not aware the sdio_func status that is probably
> being disabled by btmtksdio_close. Thus, we are only able to access the
> sdio_func for the runtime pm operations only when the sdio_func is
> available.
> 
> Fixes: 7f3c563c575e7 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth")
> Co-developed-by: Mark-yw Chen <mark-yw.chen@...iatek.com>
> Signed-off-by: Mark-yw Chen <mark-yw.chen@...iatek.com>
> Signed-off-by: Sean Wang <sean.wang@...iatek.com>
> ---
> v2: not check HCI_RUNNING from a driver, use an internal flag instead
> ---
> drivers/bluetooth/btmtksdio.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)

patch has been applied to bluetooth-next tree.

Regards

Marcel