Messages in this thread | | | Subject | Re: [PATCH] arm64: dts: hikey: Give wifi some time after power-on | From | Jan Kiszka <> | Date | Tue, 15 Jan 2019 09:10:14 +0100 |
| |
On 06.01.19 10:53, Jan Kiszka wrote: > On 03.01.19 22:32, Ulf Hansson wrote: >> On Wed, 2 Jan 2019 at 23:21, John Stultz <john.stultz@linaro.org> wrote: >>> >>> Adding a few folks to cc from the thread here: >>> https://patchwork.kernel.org/patch/10734021/ >>> >>> As this sounds like a very similar issue. >>> thanks >>> -john >> >> John, thanks for looping me in. >> >>> >>> On Sun, Dec 30, 2018 at 3:38 AM Jan Kiszka <jan.kiszka@web.de> wrote: >>>> >>>> From: Jan Kiszka <jan.kiszka@siemens.com> >>>> >>>> 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 is already very happy with 1 ms. >> >> According to the discussions we had so far, this doesn't sound like >> the correct solution. >> >> I am intending to post patch soon, however, I am not sure exactly what >> solution to pick yet. I will keep you on cc - and of course I >> appreciate if you could help to test. >> > > FWIW, the Ultra96 is also affected. Here I worked around it by using a 10 ms > power-on delay. The original workaround from the other thread did not help. > Looking forward to the proper fix now! >
Any news on this regression?
Jan
| |