linux-kernel - Re: [PATCH] mmc: tegra: Enable wake on SD card event

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAPDyKFo6X4z_gEUSjKqV6gKk6hiBRzMRUKK_7LFcct4WYg=_qg@mail.gmail.com>
Date:   Mon, 24 Jan 2022 15:41:09 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Aniruddha Rao <anrao@...dia.com>
Cc:     adrian.hunter@...el.com, thierry.reding@...il.com,
        jonathanh@...dia.com, p.zabel@...gutronix.de,
        linux-mmc@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: tegra: Enable wake on SD card event

On Thu, 13 Jan 2022 at 06:16, Aniruddha Rao <anrao@...dia.com> wrote:
>
> Enable GPIO wake source on SD card detect line.
> Physical card insertion/removal event should wake the system
> from suspend.
>
> Signed-off-by: Aniruddha Rao <anrao@...dia.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/host/sdhci-tegra.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
> index 35ebba0..5c84bd5 100644
> --- a/drivers/mmc/host/sdhci-tegra.c
> +++ b/drivers/mmc/host/sdhci-tegra.c
> @@ -1673,6 +1673,9 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
>         /* HW busy detection is supported, but R1B responses are required. */
>         host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_NEED_RSP_BUSY;
>
> +       /* GPIO CD can be set as a wakeup source */
> +       host->mmc->caps |= MMC_CAP_CD_WAKE;
> +
>         tegra_sdhci_parse_dt(host);
>
>         tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power",
> @@ -1840,7 +1843,7 @@ static int sdhci_tegra_suspend(struct device *dev)
>                 return ret;
>         }
>
> -       return 0;
> +       return mmc_gpio_set_cd_wake(host->mmc, true);
>  }
>
>  static int sdhci_tegra_resume(struct device *dev)
> @@ -1848,6 +1851,10 @@ static int sdhci_tegra_resume(struct device *dev)
>         struct sdhci_host *host = dev_get_drvdata(dev);
>         int ret;
>
> +       ret = mmc_gpio_set_cd_wake(host->mmc, false);
> +       if (ret)
> +               return ret;
> +
>         ret = pm_runtime_force_resume(dev);
>         if (ret)
>                 return ret;
> --
> 2.7.4
>