static int sh_pm_runtime_suspend(struct device *dev)
{
int ret;
ret = pm_generic_runtime_suspend(dev);
if (ret) {
dev_err(dev, "failed to suspend device\n");
return ret;
}
ret = pm_clk_suspend(dev);
if (ret) {
dev_err(dev, "failed to suspend clock\n");
pm_generic_runtime_resume(dev);
return ret;
}
return 0;
}
static int _od_suspend_noirq(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap_device *od = to_omap_device(pdev);
int ret;
if (od->flags & OMAP_DEVICE_NO_IDLE_ON_SUSPEND)
return pm_generic_suspend_noirq(dev);
ret = pm_generic_suspend_noirq(dev);
if (!ret && !pm_runtime_status_suspended(dev)) {
if (pm_generic_runtime_suspend(dev) == 0) {
omap_device_idle(pdev);
od->flags |= OMAP_DEVICE_SUSPENDED;
}
}
return ret;
}
static int _od_suspend_noirq(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap_device *od = to_omap_device(pdev);
int ret;
/* Don't attempt late suspend on a driver that is not bound */
if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER)
return 0;
ret = pm_generic_suspend_noirq(dev);
if (!ret && !pm_runtime_status_suspended(dev)) {
if (pm_generic_runtime_suspend(dev) == 0) {
omap_device_idle(pdev);
od->flags |= OMAP_DEVICE_SUSPENDED;
}
}
return ret;
}
static int omap1_pm_runtime_suspend(struct device *dev)
{
struct clk *iclk, *fclk;
int ret = 0;
dev_dbg(dev, "%s\n", __func__);
ret = pm_generic_runtime_suspend(dev);
fclk = clk_get(dev, "fck");
if (!IS_ERR(fclk)) {
clk_disable(fclk);
clk_put(fclk);
}
iclk = clk_get(dev, "ick");
if (!IS_ERR(iclk)) {
clk_disable(iclk);
clk_put(iclk);
}
return 0;
};
/**
* acpi_subsys_runtime_suspend - Suspend device using ACPI.
* @dev: Device to suspend.
*
* Carry out the generic runtime suspend procedure for @dev and use ACPI to put
* it into a runtime low-power state.
*/
int acpi_subsys_runtime_suspend(struct device *dev)
{
int ret = pm_generic_runtime_suspend(dev);
return ret ? ret : acpi_dev_runtime_suspend(dev);
}
int __weak nvhost_pm_runtime_suspend(struct device *dev)
{
return pm_generic_runtime_suspend(dev);
};
