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-rw-r--r--drivers/i2c/busses/i2c-designware-pcidrv.c57
1 files changed, 7 insertions, 50 deletions
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index f6ed06c..c0a87a5 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -138,69 +138,25 @@ static struct i2c_algorithm i2c_dw_algo = {
.functionality = i2c_dw_func,
};
+#ifdef CONFIG_PM
static int i2c_dw_pci_suspend(struct device *dev)
{
struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
- struct dw_i2c_dev *i2c = pci_get_drvdata(pdev);
- int err;
-
-
- i2c_dw_disable(i2c);
-
- err = pci_save_state(pdev);
- if (err) {
- dev_err(&pdev->dev, "pci_save_state failed\n");
- return err;
- }
-
- err = pci_set_power_state(pdev, PCI_D3hot);
- if (err) {
- dev_err(&pdev->dev, "pci_set_power_state failed\n");
- return err;
- }
+ i2c_dw_disable(pci_get_drvdata(pdev));
return 0;
}
static int i2c_dw_pci_resume(struct device *dev)
{
struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
- struct dw_i2c_dev *i2c = pci_get_drvdata(pdev);
- int err;
- u32 enabled;
-
- enabled = i2c_dw_is_enabled(i2c);
- if (enabled)
- return 0;
-
- err = pci_set_power_state(pdev, PCI_D0);
- if (err) {
- dev_err(&pdev->dev, "pci_set_power_state() failed\n");
- return err;
- }
- pci_restore_state(pdev);
-
- i2c_dw_init(i2c);
- return 0;
+ return i2c_dw_init(pci_get_drvdata(pdev));
}
+#endif
-static int i2c_dw_pci_runtime_idle(struct device *dev)
-{
- int err = pm_schedule_suspend(dev, 500);
- dev_dbg(dev, "runtime_idle called\n");
-
- if (err != 0)
- return 0;
- return -EBUSY;
-}
-
-static const struct dev_pm_ops i2c_dw_pm_ops = {
- .resume = i2c_dw_pci_resume,
- .suspend = i2c_dw_pci_suspend,
- SET_RUNTIME_PM_OPS(i2c_dw_pci_suspend, i2c_dw_pci_resume,
- i2c_dw_pci_runtime_idle)
-};
+static UNIVERSAL_DEV_PM_OPS(i2c_dw_pm_ops, i2c_dw_pci_suspend,
+ i2c_dw_pci_resume, NULL);
static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev)
{
@@ -290,6 +246,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
pm_runtime_set_autosuspend_delay(&pdev->dev, 1000);
pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_put_autosuspend(&pdev->dev);
pm_runtime_allow(&pdev->dev);
return 0;
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