From 48f6daf188ef51ee60b3dd0a38aff8cc14f14ffb Mon Sep 17 00:00:00 2001 From: Aniruddha Rao Date: Thu, 13 Jan 2022 10:46:09 +0530 Subject: mmc: sdhci-tegra: Enable wake on SD card event 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 Acked-by: Adrian Hunter Link: https://lore.kernel.org/r/1642050969-21152-1-git-send-email-anrao@nvidia.com Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-tegra.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/mmc/host/sdhci-tegra.c') diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 35ebba067e87..5c84bd5764ee 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; -- cgit v1.2.3