linux-kernel - Re: [PATCH v2] Bluetooth: btusb: Fix suspend issue for Realtek devices

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Message-Id: <A83A0A38-8AC8-4662-BBC1-3B48B707E97B@holtmann.org>
Date:   Mon, 12 Aug 2019 18:33:31 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Alex Lu <alex_lu@...lsil.com.cn>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        Max Chou <max.chou@...ltek.com>
Subject: Re: [PATCH v2] Bluetooth: btusb: Fix suspend issue for Realtek
 devices

Hi Alex,

> From the perspective of controller, global suspend means there is no
> SET_FEATURE (DEVICE_REMOTE_WAKEUP) and controller would drop the
> firmware. It would consume less power. So we should not send this kind
> of SET_FEATURE when host goes to suspend state.
> Otherwise, when making device enter selective suspend, host should send
> SET_FEATURE to make sure the firmware remains.
> 
> Signed-off-by: Alex Lu <alex_lu@...lsil.com.cn>
> ---
> drivers/bluetooth/btusb.c | 34 ++++++++++++++++++++++++++++++----
> 1 file changed, 30 insertions(+), 4 deletions(-)

this one doesn’t apply cleanly to bluetooth-next. Can you please send a version that does.

Regards

Marcel