linux-kernel - Re: [PATCH] mmc: sdhci-msm: Do not reset the controller if no card in the slot

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Message-ID: <CAPDyKFpyCfjhngmVxuaBbUdg-qE7C1Y=+1Ojsu18Liu-kqnJmw@mail.gmail.com>
Date:	Sat, 23 Jul 2016 11:37:48 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Georgi Djakov <georgi.djakov@...aro.org>
Cc:	Adrian Hunter <adrian.hunter@...el.com>, iivanov.xz@...il.com,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH] mmc: sdhci-msm: Do not reset the controller if no card in
 the slot

On 24 June 2016 at 18:24, Georgi Djakov <georgi.djakov@...aro.org> wrote:
> The controller does not clear the "reset bit" when it is reset without
> a card in the slot. Because of this, the following error message is seen
> while booting with no plugged SD card.
>
> mmc1: Reset 0x1 never completed.
>
> Add the SDHCI_QUIRK_NO_CARD_NO_RESET quirk to avoid this.
>
> Signed-off-by: Ivan T. Ivanov <ivan.ivanov@...aro.org>
> Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>

Thanks, applied for next!

Kind regards
Uffe

> ---
>  drivers/mmc/host/sdhci-msm.c |    1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index ac5700233e12..c613137ae91e 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -477,6 +477,7 @@ static const struct sdhci_ops sdhci_msm_ops = {
>
>  static const struct sdhci_pltfm_data sdhci_msm_pdata = {
>         .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
> +                 SDHCI_QUIRK_NO_CARD_NO_RESET |
>                   SDHCI_QUIRK_SINGLE_POWER_WRITE,
>         .ops = &sdhci_msm_ops,
>  };