linux-kernel - Re: [PATCH 0/2] Reduce delay after sending baudrate request for WCN3990

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Message-ID: <20190227203555.GA192510@google.com>
Date:   Wed, 27 Feb 2019 12:35:55 -0800
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Marcel Holtmann <marcel@...tmann.org>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>,
        Hemantg <hemantg@...eaurora.org>
Subject: Re: [PATCH 0/2] Reduce delay after sending baudrate request for
 WCN3990

Hi Marcel,

On Wed, Feb 27, 2019 at 08:48:31AM +0100, Marcel Holtmann wrote:
> Hi Matthias,
> 
> > The current 300ms delay after a baudrate change is extremely long.
> > For WCM3990 it is sufficient to wait 10ms after the baudrate change
> > request has been sent over the wire.
> > 
> > Also use msleep() instead of a set_current_state() / schedule_timeout()
> > combo.
> > 
> > Matthias Kaehlcke (2):
> >  hci_qca: Use msleep() instead of open coding it
> >  hci_qca: Reduce delay after sending baudrate request for WCN3990
> > 
> > drivers/bluetooth/hci_qca.c | 30 +++++++++++++++++++++---------
> > 1 file changed, 21 insertions(+), 9 deletions(-)
> 
> patch 1/2 has been applied to bluetooth-next tree.

Thanks!

> The patch 2/2 fails to apply.

Right, the series "Bluetooth: hci_qca: Add delay after power-off
pulse" that was just applied touches the same code. I'll send a
rebased version soon.

Cheers

Matthias