diff options
Diffstat (limited to 'drivers/mmc/host/renesas_sdhi_core.c')
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_core.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index f56fa2cd208d..2a310a145785 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -31,6 +31,7 @@ #include <linux/platform_data/tmio.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> +#include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/regulator/driver.h> #include <linux/regulator/of_regulator.h> @@ -1103,7 +1104,7 @@ int renesas_sdhi_probe(struct platform_device *pdev, if (IS_ERR(priv->clk_cd)) return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk_cd), "cannot get cd clock"); - priv->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL); + priv->rstc = devm_reset_control_get_optional_exclusive_deasserted(&pdev->dev, NULL); if (IS_ERR(priv->rstc)) return PTR_ERR(priv->rstc); @@ -1317,5 +1318,41 @@ void renesas_sdhi_remove(struct platform_device *pdev) } EXPORT_SYMBOL_GPL(renesas_sdhi_remove); +int renesas_sdhi_suspend(struct device *dev) +{ + struct tmio_mmc_host *host = dev_get_drvdata(dev); + struct renesas_sdhi *priv = host_to_priv(host); + int ret; + + ret = pm_runtime_force_suspend(dev); + if (ret) + return ret; + + ret = reset_control_assert(priv->rstc); + if (ret) + pm_runtime_force_resume(dev); + + return ret; +} +EXPORT_SYMBOL_GPL(renesas_sdhi_suspend); + +int renesas_sdhi_resume(struct device *dev) +{ + struct tmio_mmc_host *host = dev_get_drvdata(dev); + struct renesas_sdhi *priv = host_to_priv(host); + int ret; + + ret = reset_control_deassert(priv->rstc); + if (ret) + return ret; + + ret = pm_runtime_force_resume(dev); + if (ret) + reset_control_assert(priv->rstc); + + return ret; +} +EXPORT_SYMBOL_GPL(renesas_sdhi_resume); + MODULE_DESCRIPTION("Renesas SDHI core driver"); MODULE_LICENSE("GPL v2"); |