linux-kernel - Re: [PATCH v2 2/2] arm64: dts: hi6220: add resets property into dwmmc nodes

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Date:   Thu, 27 Oct 2016 15:56:59 +0200
From:   Vincent Guittot <vincent.guittot@...aro.org>
To:     Guodong Xu <guodong.xu@...aro.org>
Cc:     xuwei5@...ilicon.com, Rob Herring <robh+dt@...nel.org>,
        rob.herring@...aro.org, Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        xinliang.liu@...aro.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        jh80.chung@...sung.com, John Stultz <john.stultz@...aro.org>,
        Fathi Boudra <fathi.boudra@...aro.org>,
        LAK <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 2/2] arm64: dts: hi6220: add resets property into dwmmc nodes

Hi,

My hikey board failed to detect and mount sdcard with v4.9-rc1 and i
have bisected the issue to this patch. Once reverted, the sdcard is
detected again.

Regards,
Vincent

On 25 August 2016 at 05:00, Guodong Xu <guodong.xu@...aro.org> wrote:
> Add resets property into dwmmc_0, dwmmc_1 and dwmmc_2 for hi6220
>
> Code and documentation to this property were confirmed by maintainers.
> See:
> [1] https://patchwork.kernel.org/patch/9276607/
> [2] https://patchwork.kernel.org/patch/8487151/
> [3] https://lkml.org/lkml/2016/8/12/91
>
> cc: Jaehoon Chung <jh80.chung@...sung.com>
> cc: Rob Herring <robh+dt@...nel.org>
> Signed-off-by: Guodong Xu <guodong.xu@...aro.org>
> ---
>  arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> index d0b887a..63608e9 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> @@ -771,6 +771,7 @@
>                         interrupts = <0x0 0x48 0x4>;
>                         clocks = <&sys_ctrl 2>, <&sys_ctrl 1>;
>                         clock-names = "ciu", "biu";
> +                       resets = <&sys_ctrl PERIPH_RSTDIS0_MMC0>;
>                         bus-width = <0x8>;
>                         vmmc-supply = <&ldo19>;
>                         pinctrl-names = "default";
> @@ -790,6 +791,7 @@
>                         #size-cells = <0x0>;
>                         clocks = <&sys_ctrl 4>, <&sys_ctrl 3>;
>                         clock-names = "ciu", "biu";
> +                       resets = <&sys_ctrl PERIPH_RSTDIS0_MMC1>;
>                         vqmmc-supply = <&ldo7>;
>                         vmmc-supply = <&ldo10>;
>                         bus-width = <0x4>;
> @@ -807,6 +809,7 @@
>                         interrupts = <0x0 0x4a 0x4>;
>                         clocks = <&sys_ctrl HI6220_MMC2_CIUCLK>, <&sys_ctrl HI6220_MMC2_CLK>;
>                         clock-names = "ciu", "biu";
> +                       resets = <&sys_ctrl PERIPH_RSTDIS0_MMC2>;
>                         bus-width = <0x4>;
>                         broken-cd;
>                         pinctrl-names = "default", "idle";
> --
> 1.9.1
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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