[PATCH 0/3] arm64: hi6220-hikey: Fix Bluetooth support

John Stultz john.stultz at linaro.org
Wed Jun 7 12:07:52 PDT 2017


On Wed, Jun 7, 2017 at 2:08 AM, Ulf Hansson <ulf.hansson at linaro.org> wrote:
> The commit ea452678734e ("arm64: dts: hikey: Fix WiFi support") indeed managed
> to fix the WiFi support for the Hikey board. However, it also caused the
> Bluetooth to break.
>
> The reason to the problem is because part of the fixes for WiFi, involved
> explicitly to start manage the external clock for the TI WiLink chip, as it's
> needed to properly power on/off WiFi. Then, because the Bluetooth driver,
> hci_ll, don't manage the clock, it fails to initialize Bluetooth.
>
> This small series add support and DT bindings for the external clock, now
> properly managed by the hci_ll driver during power on/off. On top of that, the
> external clock is added to the Bluetooth DT node in the Hikey DTS file.
>
> The regression has been reported by John Stultz, running a Hikey board with
> UEFI based boot. I have confirmed that there is no regressions with u-boot as
> we still don't have bluetooth working on that set up. I intend to fix that as
> well, although in second step and not being part of a fixup series.
>
> John, can you please confirm/test this on your Hikey board using UEFI!?

Yes. This does resolve the issue! Bluetooth and wifi are now working
together again as they were before ea452678734e.

For the whole set:
Tested-by: John Stultz <john.stultz at linaro.org>

Thanks so much for working this out Ulf!

-john



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