Commit ed24e1ff authored by Shawn Lin's avatar Shawn Lin Committed by Ulf Hansson

mmc: dw_mmc: remove system PM callback

Now there are no variant drivers using dw_mci_suspend
and dw_mci_resume, so let's remove it.
Signed-off-by: default avatarShawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: default avatarJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent ee2112be
......@@ -3268,27 +3268,41 @@ EXPORT_SYMBOL(dw_mci_remove);
#ifdef CONFIG_PM
/*
* TODO: we should probably disable the clock to the card in the suspend path.
*/
int dw_mci_suspend(struct dw_mci *host)
int dw_mci_runtime_suspend(struct device *dev)
{
struct dw_mci *host = dev_get_drvdata(dev);
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
clk_disable_unprepare(host->ciu_clk);
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc)))
clk_disable_unprepare(host->biu_clk);
return 0;
}
EXPORT_SYMBOL(dw_mci_suspend);
EXPORT_SYMBOL(dw_mci_runtime_suspend);
int dw_mci_resume(struct dw_mci *host)
int dw_mci_runtime_resume(struct device *dev)
{
int i, ret;
int i, ret = 0;
struct dw_mci *host = dev_get_drvdata(dev);
if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) {
ret = -ENODEV;
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc))) {
ret = clk_prepare_enable(host->biu_clk);
if (ret)
return ret;
}
ret = clk_prepare_enable(host->ciu_clk);
if (ret)
return ret;
if (host->use_dma && host->dma_ops->init)
host->dma_ops->init(host);
......@@ -3322,48 +3336,7 @@ int dw_mci_resume(struct dw_mci *host)
/* Now that slots are all setup, we can enable card detect */
dw_mci_enable_cd(host);
return 0;
}
EXPORT_SYMBOL(dw_mci_resume);
int dw_mci_runtime_suspend(struct device *dev)
{
int err = 0;
struct dw_mci *host = dev_get_drvdata(dev);
err = dw_mci_suspend(host);
if (err)
return err;
clk_disable_unprepare(host->ciu_clk);
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc)))
clk_disable_unprepare(host->biu_clk);
return err;
}
EXPORT_SYMBOL(dw_mci_runtime_suspend);
int dw_mci_runtime_resume(struct device *dev)
{
int ret = 0;
struct dw_mci *host = dev_get_drvdata(dev);
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc))) {
ret = clk_prepare_enable(host->biu_clk);
if (ret)
return ret;
}
ret = clk_prepare_enable(host->ciu_clk);
if (ret)
return ret;
return dw_mci_resume(host);
}
EXPORT_SYMBOL(dw_mci_runtime_resume);
#endif /* CONFIG_PM */
......
......@@ -235,8 +235,6 @@
extern int dw_mci_probe(struct dw_mci *host);
extern void dw_mci_remove(struct dw_mci *host);
#ifdef CONFIG_PM
extern int dw_mci_suspend(struct dw_mci *host);
extern int dw_mci_resume(struct dw_mci *host);
extern int dw_mci_runtime_suspend(struct device *device);
extern int dw_mci_runtime_resume(struct device *device);
#endif
......
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