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From: Matthias Kaehlcke <mka@chromium.org>
To: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Cc: Marcel Holtmann <marcel@holtmann.org>,
	Johan Hedberg <johan.hedberg@gmail.com>,
	linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
	hemantg@codeaurora.org
Subject: Re: [PATCH 2/3] Bluetooth: hci_qca: Move boot delay to qca_send_power_pulse()
Date: Tue, 26 Feb 2019 11:31:52 -0800	[thread overview]
Message-ID: <20190226193152.GA135932@google.com> (raw)
In-Reply-To: <0c928a085f4c237c3efe0ad9fda803d9@codeaurora.org>

Hi Balakrishna,

Thanks for the reviews!

On Tue, Feb 26, 2019 at 05:54:24PM +0530, Balakrishna Godavarthi wrote:
> hi Matthias,
> 
> On 2019-02-26 17:48, Balakrishna Godavarthi wrote:
> > On 2019-02-26 05:19, Matthias Kaehlcke wrote:
> > > After sending a power on pulse the driver has a delay of 100ms
> > > to allow the host controller to boot. Move the delay into
> > > qca_send_power_pulse(), since it is directly related with the
> > > power-on pulse.
> > > 
> > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
> > > ---
> > >  drivers/bluetooth/hci_qca.c | 6 +++---
> > >  1 file changed, 3 insertions(+), 3 deletions(-)
> > > 
> > > diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> > > index e4128774e9686..eacc108c422d0 100644
> > > --- a/drivers/bluetooth/hci_qca.c
> > > +++ b/drivers/bluetooth/hci_qca.c
> > > @@ -1036,6 +1036,9 @@ static int qca_send_power_pulse(struct hci_uart
> > > *hu, bool on)
> > >  	usleep_range(100, 200);
> 
> [Bala] : i still doubt do we require this delay.

I don't know if it was necessary (or at least helped in the power-off
case) without this series, but my testing suggests it is not needed
with the delay after the power off pulse ("[3/3] Bluetooth: hci_qca:
Add delay after power-off pulse").

I'll send a new version without the delay.

Thanks

Matthias

  reply	other threads:[~2019-02-26 19:31 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-25 23:49 [PATCH 0/3] Bluetooth: hci_qca: Add delay after power-off pulse Matthias Kaehlcke
2019-02-25 23:49 ` [PATCH 1/3] Bluetooth: hci_qca: Pass boolean 'on/off' to qca_send_power_pulse() Matthias Kaehlcke
2019-02-26 12:16   ` Balakrishna Godavarthi
2019-02-25 23:49 ` [PATCH 2/3] Bluetooth: hci_qca: Move boot delay " Matthias Kaehlcke
2019-02-26 12:18   ` Balakrishna Godavarthi
2019-02-26 12:24     ` Balakrishna Godavarthi
2019-02-26 19:31       ` Matthias Kaehlcke [this message]
2019-02-25 23:49 ` [PATCH 3/3] Bluetooth: hci_qca: Add delay after power-off pulse Matthias Kaehlcke
2019-02-26 12:19   ` Balakrishna Godavarthi

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