diff options
| author | Shawn Lin <shawn.lin@rock-chips.com> | 2016-10-12 04:50:36 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-11-29 09:00:36 +0100 |
| commit | f90142683f04bcb0729bf0df67a5e29562b725b9 (patch) | |
| tree | d48e13c492c6e4440488ab7d791e613c29a95457 /drivers/mmc/host/dw_mmc-rockchip.c | |
| parent | mmc: dw_mmc: add runtime PM callback (diff) | |
| download | linux-f90142683f04bcb0729bf0df67a5e29562b725b9.tar.xz linux-f90142683f04bcb0729bf0df67a5e29562b725b9.zip | |
mmc: dw_mmc-rockchip: add runtime PM support
This patch adds runtime PM support for dw_mmc-rockchip.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc-rockchip.c')
| -rw-r--r-- | drivers/mmc/host/dw_mmc-rockchip.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c index 25eae359a5ea..0a05ad3c5fbf 100644 --- a/drivers/mmc/host/dw_mmc-rockchip.c +++ b/drivers/mmc/host/dw_mmc-rockchip.c @@ -13,6 +13,7 @@ #include <linux/mmc/host.h> #include <linux/mmc/dw_mmc.h> #include <linux/of_address.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> #include "dw_mmc.h" @@ -325,6 +326,7 @@ static int dw_mci_rockchip_probe(struct platform_device *pdev) { const struct dw_mci_drv_data *drv_data; const struct of_device_id *match; + int ret; if (!pdev->dev.of_node) return -ENODEV; @@ -332,16 +334,49 @@ static int dw_mci_rockchip_probe(struct platform_device *pdev) match = of_match_node(dw_mci_rockchip_match, pdev->dev.of_node); drv_data = match->data; - return dw_mci_pltfm_register(pdev, drv_data); + pm_runtime_get_noresume(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 50); + pm_runtime_use_autosuspend(&pdev->dev); + + ret = dw_mci_pltfm_register(pdev, drv_data); + if (ret) { + pm_runtime_disable(&pdev->dev); + pm_runtime_set_suspended(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + return ret; + } + + pm_runtime_put_autosuspend(&pdev->dev); + + return 0; } +static int dw_mci_rockchip_remove(struct platform_device *pdev) +{ + pm_runtime_get_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + + return dw_mci_pltfm_remove(pdev); +} + +static const struct dev_pm_ops dw_mci_rockchip_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend, + dw_mci_runtime_resume, + NULL) +}; + static struct platform_driver dw_mci_rockchip_pltfm_driver = { .probe = dw_mci_rockchip_probe, - .remove = dw_mci_pltfm_remove, + .remove = dw_mci_rockchip_remove, .driver = { .name = "dwmmc_rockchip", .of_match_table = dw_mci_rockchip_match, - .pm = &dw_mci_pltfm_pmops, + .pm = &dw_mci_rockchip_dev_pm_ops, }, }; |