linux-kernel - Re: [PATCH v2] arm64/hisilicon: fix SDcard detection

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Date:   Fri, 1 Feb 2019 17:00:18 +0000
From:   Wei Xu <xuwei5@...ilicon.com>
To:     Vincent Guittot <vincent.guittot@...aro.org>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linus.walleij@...aro.org>
Subject: Re: [PATCH v2] arm64/hisilicon: fix SDcard detection

Hi Vincent,

On 1/14/2019 8:24 AM, Vincent Guittot wrote:
> The SDcard detection of hikey960 is active low so cd-inverted is wrong.
> Instead of adding cd-inverted, we should better set correctly cd-gpios
> to use GPIO_ACTIVE_LOW.
> 
> Signed-off-by: Vincent Guittot <vincent.guittot@...aro.org>

Updated the subject as Leo suggested and applied to the hisilicon tree.
Thanks!

Best Regards,
Wei

> ---
> 
> SD card detection was not working on v5.0-rc1 but patch
> https://marc.info/?l=linux-mmc&m=154637189021211&w=2 makes it work.
> Nevertheles, latest changes in of_mmc_detection makes possible to have 
> a correct DT config.
> 
>  arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> index 71bfe41..dc314e7 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
> @@ -665,8 +665,7 @@
>  	sd-uhs-sdr50;
>  	sd-uhs-sdr104;
>  	disable-wp;
> -	cd-inverted;
> -	cd-gpios = <&gpio25 3 0>;
> +	cd-gpios = <&gpio25 3 GPIO_ACTIVE_LOW>;
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&sd_pmx_func
>  		     &sd_clk_cfg_func
>