diff options
| author | Aniruddha Rao <anrao@nvidia.com> | 2022-01-13 10:46:09 +0530 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-02-28 13:06:21 +0100 |
| commit | 48f6daf188ef51ee60b3dd0a38aff8cc14f14ffb (patch) | |
| tree | cea3b3e0e7c0a35274b750f9b4202a6e1b14e959 /drivers/mmc/host/sdhci-tegra.c | |
| parent | b59294d65ae5740e79d70c6712d91f76a667ee2e (diff) | |
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 <anrao@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1642050969-21152-1-git-send-email-anrao@nvidia.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-tegra.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-tegra.c | 9 |
1 files changed, 8 insertions, 1 deletions
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; |