linux-kernel - Re: [PATCH] arm64: dts: hikey960: Define wl1837 power capabilities

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Date:   Thu, 28 Jun 2018 21:26:41 +0100
From:   Wei Xu <xuwei5@...ilicon.com>
To:     Ryan Grachek <ryan@...ted.us>
CC:     <valentin.schneider@....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@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: hikey960: Define wl1837 power capabilities

Hi Ryan,

On 2018/6/13 19:03, 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: https://lkml.org/lkml/2018/6/12/930
> 
> Signed-off-by: Ryan Grachek <ryan@...ted.us>
> ---

Applied to hisilicon fix tree.
Thanks!

Best Regards,
Wei

>  arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> index c6999624ed8a..68c5a6c819ae 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> @@ -585,6 +585,8 @@
>  	vmmc-supply = <&wlan_en>;
>  	ti,non-removable;
>  	non-removable;
> +	cap-power-off-card;
> +	keep-power-in-suspend;
>  	#address-cells = <0x1>;
>  	#size-cells = <0x0>;
>  	status = "ok";
>