mmc: dw_mmc-k3: deploy runtime PM facilities
Let's migrate it to use runtime PM and remove the system PM callback from this driver. With this patch, it could handle system PM properly and could also use runtime PM if we enable it. 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>
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@ -15,6 +15,7 @@
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/of_address.h>
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#include <linux/platform_device.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/regulator/consumer.h>
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@ -162,35 +163,13 @@ static int dw_mci_k3_probe(struct platform_device *pdev)
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return dw_mci_pltfm_register(pdev, drv_data);
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return dw_mci_pltfm_register(pdev, drv_data);
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}
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}
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#ifdef CONFIG_PM_SLEEP
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static const struct dev_pm_ops dw_mci_k3_dev_pm_ops = {
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static int dw_mci_k3_suspend(struct device *dev)
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SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
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{
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pm_runtime_force_resume)
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struct dw_mci *host = dev_get_drvdata(dev);
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SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
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int ret;
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dw_mci_runtime_resume,
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NULL)
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ret = dw_mci_suspend(host);
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};
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if (!ret)
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clk_disable_unprepare(host->ciu_clk);
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return ret;
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}
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static int dw_mci_k3_resume(struct device *dev)
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{
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struct dw_mci *host = dev_get_drvdata(dev);
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int ret;
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ret = clk_prepare_enable(host->ciu_clk);
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if (ret) {
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dev_err(host->dev, "failed to enable ciu clock\n");
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return ret;
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}
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return dw_mci_resume(host);
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}
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#endif /* CONFIG_PM_SLEEP */
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static SIMPLE_DEV_PM_OPS(dw_mci_k3_pmops, dw_mci_k3_suspend, dw_mci_k3_resume);
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static struct platform_driver dw_mci_k3_pltfm_driver = {
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static struct platform_driver dw_mci_k3_pltfm_driver = {
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.probe = dw_mci_k3_probe,
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.probe = dw_mci_k3_probe,
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@ -198,7 +177,7 @@ static struct platform_driver dw_mci_k3_pltfm_driver = {
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.driver = {
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.driver = {
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.name = "dwmmc_k3",
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.name = "dwmmc_k3",
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.of_match_table = dw_mci_k3_match,
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.of_match_table = dw_mci_k3_match,
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.pm = &dw_mci_k3_pmops,
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.pm = &dw_mci_k3_dev_pm_ops,
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},
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},
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};
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};
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