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Date:   Wed, 13 Jun 2018 12:36:40 -0700
From:   John Stultz <>
To:     Ryan Grachek <>, Wei Xu <>
Cc:     Mark Rutland <>,
        Catalin Marinas <>,
        Will Deacon <>,
        lkml <>,
        Rob Herring <>,
        Valentin Schneider <>,, Eyal Reizer <>,
        Tony Lindgren <>,, Kalle Valo <>
Subject: Re: [PATCH] arm64: dts: hikey960: Define wl1837 power capabilities

On Wed, Jun 13, 2018 at 11:03 AM, Ryan Grachek <> 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. This fixes
> a regression found here:
> Signed-off-by: Ryan Grachek <>

Fixes: 60f36637bbbd ("wlcore: sdio: allow pm to handle sdio power")
Tested-by: John Stultz <>
Acked-by: John Stultz <>

Wei Xu: This also fixes a functional regression with wifi on the
HiKey960 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 too?


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