Re: [PATCH v3 0/2] Bluetooth: hci_qca: Reopen port after power on for QCA2066

[Bartosz Golaszewski]

On Fri, Nov 06, 2026 at 02:35:25PM +0800, Shuai Zhang wrote:
> Hi Bartosz
> 
> On 10/30/2026 5:29 PM, Bartosz Golaszewski wrote:
> > On Wed, Oct 28, 2026 at 07:18:37PM +0800, Shuai Zhang wrote:
> > > QCA2066 needs the serial port reopened after the controller is powered
> > > on, otherwise the host and the controller run into RTS/CTS
> > > synchronization issues.
> > > 
> > > Patch 1 reopens the port in qca_power_on() for QCA2066, as in v2.
> > > 
> > > Patch 2 keeps HCI_UART_PROTO_READY in sync with the port state, so that a
> > > port which failed to reopen is not closed or flushed again.
> > > 
> > > Changes in v3:
> > >   - Patch 1 is unchanged from v2.
> > >   - Add patch 2. If serdev_device_open() fails during the reopen, the
> > >     port stays closed but HCI_UART_PROTO_READY stays set, so the later
> > >     serdev_device_close() and hci_uart_flush() use a closed port. Keep
> > >     the flag in sync with the port state and skip the port flush when
> > >     the port is not open.
> > >   - Link to v2:
> > >     https://lore.kernel.org/all/20261016022302.4003647-1-shuai.zhang@xxxxxxxxxxxxxxxx/
> > > 
> > > Changes in v2:
> > >   - Use a separate case for clearer logic.
> > >   - Link to v1:
> > >     https://lore.kernel.org/all/20261015092224.262158-1-shuai.zhang@xxxxxxxxxxxxxxxx/
> > > 
> > > Shuai Zhang (2):
> > >    Bluetooth: hci_qca: Reopen port after power on for QCA2066
> > >    Bluetooth: hci_qca: Don't use the serdev port after a failed reopen
> > > 
> > >   drivers/bluetooth/hci_qca.c    | 46 +++++++++++++++++++++++++++++-----
> > >   drivers/bluetooth/hci_serdev.c |  6 +++--
> > >   2 files changed, 44 insertions(+), 8 deletions(-)
> > > 
> > > -- 
> > > 2.34.1
> > > 
> > Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
> 
> Just want to confirm if there's anything else I need to do before applying
> it.
>

Luiz uses patchwork, I'm pretty sure the patch won't get lost.

Bart