diff options
| author |   Grygorii Strashko <grygorii.strashko@ti.com> | 2016-06-24 21:23:50 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-06-28 08:57:19 -0400 |
| commit | 651652aace74207a41802a911963a8a4ced37da2 (patch) | |
| tree | 31d7c2944e3f4b4052f1108a2bf0ab9ed7c1e4fb /drivers/net/ethernet/ti/davinci_mdio.c | |
| parent | drivers: net: davinci_mdio: split reset function on init_clk and enable (diff) | |
| download | linux-dev-651652aace74207a41802a911963a8a4ced37da2.tar.xz linux-dev-651652aace74207a41802a911963a8a4ced37da2.zip | |
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: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_mdio.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c index b206fd388448..13f5080e0c43 100644 --- a/drivers/net/ethernet/ti/davinci_mdio.c +++ b/drivers/net/ethernet/ti/davinci_mdio.c @@ -406,8 +406,8 @@ static int davinci_mdio_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -static int davinci_mdio_suspend(struct device *dev) +#ifdef CONFIG_PM +static int davinci_mdio_runtime_suspend(struct device *dev) { struct davinci_mdio_data *data = dev_get_drvdata(dev); u32 ctrl; @@ -418,6 +418,28 @@ static int davinci_mdio_suspend(struct device *dev) __raw_writel(ctrl, &data->regs->control); 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 */ pinctrl_pm_select_sleep_state(dev); @@ -431,14 +453,15 @@ static int davinci_mdio_resume(struct device *dev) /* Select default pin state */ pinctrl_pm_select_default_state(dev); - /* restart the scan state machine */ - davinci_mdio_enable(data); + pm_runtime_force_resume(dev); return 0; } #endif 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) }; |