On 13/01/2022 07:16, Aniruddha Rao 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@xxxxxxxxxx> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> > --- > 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; >
