Re: [PATCH RFC 0/4] Add WCN3988 Bluetooth support for Fairphone 4

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On Sat Apr 22, 2023 at 2:03 PM CEST, Konrad Dybcio wrote:
>
>
> On 21.04.2023 16:11, Luca Weiss wrote:
> > Just to start with the important part why this is an RFC:
> > 
> > While Bluetooth chip init works totally fine and bluez seems to be
> > fairly happy with it, there's a (major) problem with scanning, as shown
> > with this bluetoothctl snippet and dmesg snippet:
> > 
> >   [bluetooth]# scan on
> >   Failed to start discovery: org.bluez.Error.InProgress
> > 
> >   [  202.371374] Bluetooth: hci0: Opcode 0x200b failed: -16
> > 
> > This opcode should be the following:
> > 
> >   include/net/bluetooth/hci.h:#define HCI_OP_LE_SET_SCAN_PARAM    0x200b
> Not a bluetooth expert or anything, but does that thing support
> bluetooth LE?

I don't know too much about Bluetooth details either, but hasn't
Bluetooth LE been a consistently supported thing since like 10 years?

All the info I can easily find just states SM7225 SoC supports
"Bluetooth 5.1".

Regards
Luca

>
> Konrad
> > 
> > Unfortunately trying various existing code branches in the Bluetooth
> > driver doesn't show any sign of making this work and I don't really know
> > where to look to debug this further.
> > 
> > On the other hand "discoverable on" makes the device show up on other
> > devices during scanning , so the RF parts of the Bluetooth chip are
> > generally functional for sure.
> > 
> > Any ideas are welcome.
> > 
> > @Bjorn: Patch "arm64: dts: qcom: sm6350: add uart1 node" should be fine
> > to take regardless the RFC status, I don't think the problem is caused
> > there.
> > 
> > Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
> > ---
> > Luca Weiss (4):
> >       dt-bindings: net: qualcomm: Add WCN3988
> >       Bluetooth: btqca: Add WCN3988 support
> >       arm64: dts: qcom: sm6350: add uart1 node
> >       arm64: dts: qcom: sm7225-fairphone-fp4: Add Bluetooth
> > 
> >  .../bindings/net/bluetooth/qualcomm-bluetooth.yaml |  2 +
> >  arch/arm64/boot/dts/qcom/sm6350.dtsi               | 63 ++++++++++++++++++++++
> >  arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts  | 17 ++++++
> >  drivers/bluetooth/btqca.c                          | 13 ++++-
> >  drivers/bluetooth/btqca.h                          | 12 ++++-
> >  drivers/bluetooth/hci_qca.c                        | 12 +++++
> >  6 files changed, 115 insertions(+), 4 deletions(-)
> > ---
> > base-commit: cf4c0112a0350cfe8a63b5eb3377e2366f57545b
> > change-id: 20230421-fp4-bluetooth-b36a0e87b9c8
> > 
> > Best regards,





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