linux-kernel - Re: [PATCH] arm64: dts: hikey: Define wl1835 power capabilities

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Date:   Wed, 13 Jun 2018 21:53:32 +0300
From:   Kalle Valo <kvalo@...eaurora.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     Ryan Grachek <ryan@...ted.us>, Wei Xu <xuwei5@...ilicon.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Eyal Reizer <eyalr@...com>, Tony Lindgren <tony@...mide.com>,
        Valentin Schneider <Valentin.Schneider@....com>,
        linux-wireless@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: hikey: Define wl1835 power capabilities

John Stultz <john.stultz@...aro.org> writes:

> On Wed, Jun 13, 2018 at 8:13 AM, Ryan Grachek <ryan@...ted.us> wrote:
>> These properties are required for compatibility with runtime PM.
>> Without these properties, MMC host controller will not be aware
>> of power capabilities. When the wlcore driver attempts to power
>> on the device, it will erroneously fail with -EACCES.
>>
>> Signed-off-by: Ryan Grachek <ryan@...ted.us>
>
> Fixes: 60f36637bbbd ("wlcore: sdio: allow pm to handle sdio power")
> Tested-by: John Stultz <john.stultz@...aro.org>
> Acked-by: John Stultz <john.stultz@...aro.org>
>
> Wei Xu: This fixes a functional regression with wifi on the HiKey
> board that was introduced in 4.18-rc with commit 60f36637bbbd
> ("wlcore: sdio: allow pm to handle sdio power").
>
> Could you please be sure to queue this for the 4.18-rc ?

Adding linux-wireless so that wireless folks are aware of this wlcore
regression fix as well.

-- 
Kalle Valo