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

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Message-Id: <45D9EB4B-C81A-4970-9ED1-3737A0AF771F@holtmann.org>
Date:   Wed, 27 Feb 2019 08:48:31 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Matthias Kaehlcke <mka@...omium.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 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. The patch 2/2 fails to apply.

Regards

Marcel