Re: [PATCH v2] arm64: dts: hikey: Give wifi some time after power-on

[Ulf Hansson]

On Fri, 1 Feb 2019 at 17:34, Wei Xu <xuwei5@xxxxxxxxxxxxx> wrote:
>
> Hi Jan,
>
> On 1/24/2019 7:52 AM, Jan Kiszka wrote:
> > From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> >
> > Somewhere along recent changes to power control of the wl1835, power-on
> > became very unreliable on the hikey, failing like this:
> >
> > wl1271_sdio: probe of mmc2:0001:1 failed with error -16
> > wl1271_sdio: probe of mmc2:0001:2 failed with error -16
> >
> > After playing with some dt parameters and comparing to other users of
> > this chip, it turned out we need some power-on delay to make things
> > stable again. In contrast to those other users which define 200 ms, the
> > hikey would already be happy with 1 ms. Still, we use the safer 10 ms,
> > like on the Ultra96.
> >
> > Fixes: ea452678734e ("arm64: dts: hikey: Fix WiFi support")
> > Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> > Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
>
> Applied to the hisilicon soc dt tree.

Wei, can you please also add a stable tag to it?

[...]

Thanks and kind regards
Uffe