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mmc: sdhci-tegra: Enable wake on SD card event

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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>
This commit is contained in:
Aniruddha Rao 2022-01-13 10:46:09 +05:30 committed by Ulf Hansson
parent b59294d65a
commit 48f6daf188
1 changed files with 8 additions and 1 deletions
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9
drivers/mmc/host/sdhci-tegra.c
View file

@ -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;