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

[Wei Xu <xuwei5@hisilicon.com>]

Hi Ulf,

On 2/4/2019 6:06 AM, Ulf Hansson wrote:
> On Fri, 1 Feb 2019 at 17:34, Wei Xu <xuwei5@hisilicon.com> wrote:
>>
>> Hi Jan,
>>
>> On 1/24/2019 7:52 AM, Jan Kiszka 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 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@siemens.com>
>>> Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
>>
>> Applied to the hisilicon soc dt tree.
> 
> Wei, can you please also add a stable tag to it?

Yes, added below tag into this patch.
	Cc: <stable@vger.kernel.org> #4.12+

Thanks for your kindly reminder :)

Best Regards,
Wei

> 
> [...]
> 
> Thanks and kind regards
> Uffe
> 
> .
>