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Commit 651652aa authored by Grygorii Strashko's avatar Grygorii Strashko Committed by David S. Miller
Browse files

drivers: net: davinci_mdio: add pm runtime callbacks 



Add PM runtime .runtime_suspend()/.runtime_resume() callbacks and
perform Davinci MDIO enabling/disabling from these callbacks. This
allows to reuse pm_runtime_force_suspend/resume() APIs during System
suspend and required for further implementation of PM runtime
autosuspend.

Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 28f0ccb9

drivers/net/ethernet/ti/davinci_mdio.c

+27 −4
Original line number Original line Diff line number Diff line
@@ -406,8 +406,8 @@ static int davinci_mdio_remove(struct platform_device *pdev) 
	return 0;

	return 0;

}

}





#ifdef CONFIG_PM_SLEEP

#ifdef CONFIG_PM

static int davinci_mdio_suspend(struct device *dev)

static int davinci_mdio_runtime_suspend(struct device *dev)

{

{

	struct davinci_mdio_data *data = dev_get_drvdata(dev);

	struct davinci_mdio_data *data = dev_get_drvdata(dev);

	u32 ctrl;

	u32 ctrl;
@@ -418,6 +418,28 @@ static int davinci_mdio_suspend(struct device *dev) 
	__raw_writel(ctrl, &data->regs->control);

	__raw_writel(ctrl, &data->regs->control);

	wait_for_idle(data);

	wait_for_idle(data);





	return 0;

}



static int davinci_mdio_runtime_resume(struct device *dev)

{

	struct davinci_mdio_data *data = dev_get_drvdata(dev);



	davinci_mdio_enable(data);

	return 0;

}

#endif



#ifdef CONFIG_PM_SLEEP

static int davinci_mdio_suspend(struct device *dev)

{

	struct davinci_mdio_data *data = dev_get_drvdata(dev);

	int ret = 0;



	ret = pm_runtime_force_suspend(dev);

	if (ret < 0)

		return ret;



	/* Select sleep pin state */

	/* Select sleep pin state */

	pinctrl_pm_select_sleep_state(dev);

	pinctrl_pm_select_sleep_state(dev);
@@ -431,14 +453,15 @@ static int davinci_mdio_resume(struct device *dev) 
	/* Select default pin state */

	/* Select default pin state */

	pinctrl_pm_select_default_state(dev);

	pinctrl_pm_select_default_state(dev);





	/* restart the scan state machine */

	pm_runtime_force_resume(dev);

	davinci_mdio_enable(data);





	return 0;

	return 0;

}

}

#endif

#endif





static const struct dev_pm_ops davinci_mdio_pm_ops = {

static const struct dev_pm_ops davinci_mdio_pm_ops = {

	SET_RUNTIME_PM_OPS(davinci_mdio_runtime_suspend,

			   davinci_mdio_runtime_resume, NULL)

	SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume)

	SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume)

};

};