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:

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Hi Jan,

On 1/24/2019 7:52 AM, Jan Kiszka wrote:

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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

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Thanks and kind regards Uffe

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