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path: root/drivers/net/ethernet/ti/davinci_mdio.c
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Diffstat (limited to 'drivers/net/ethernet/ti/davinci_mdio.c')
-rw-r--r--drivers/net/ethernet/ti/davinci_mdio.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index e4e47088e26..cd7ee204e94 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -34,6 +34,7 @@
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
+#include <linux/pm_runtime.h>
#include <linux/davinci_emac.h>
/*
@@ -321,7 +322,9 @@ static int __devinit davinci_mdio_probe(struct platform_device *pdev)
snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x",
pdev->name, pdev->id);
- data->clk = clk_get(dev, NULL);
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+ data->clk = clk_get(&pdev->dev, "fck");
if (IS_ERR(data->clk)) {
dev_err(dev, "failed to get device clock\n");
ret = PTR_ERR(data->clk);
@@ -329,8 +332,6 @@ static int __devinit davinci_mdio_probe(struct platform_device *pdev)
goto bail_out;
}
- clk_enable(data->clk);
-
dev_set_drvdata(dev, data);
data->dev = dev;
spin_lock_init(&data->lock);
@@ -378,10 +379,10 @@ bail_out:
if (data->bus)
mdiobus_free(data->bus);
- if (data->clk) {
- clk_disable(data->clk);
+ if (data->clk)
clk_put(data->clk);
- }
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
kfree(data);
@@ -396,10 +397,10 @@ static int __devexit davinci_mdio_remove(struct platform_device *pdev)
if (data->bus)
mdiobus_free(data->bus);
- if (data->clk) {
- clk_disable(data->clk);
+ if (data->clk)
clk_put(data->clk);
- }
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
dev_set_drvdata(dev, NULL);
@@ -421,8 +422,7 @@ static int davinci_mdio_suspend(struct device *dev)
__raw_writel(ctrl, &data->regs->control);
wait_for_idle(data);
- if (data->clk)
- clk_disable(data->clk);
+ pm_runtime_put_sync(data->dev);
data->suspended = true;
spin_unlock(&data->lock);
@@ -436,8 +436,7 @@ static int davinci_mdio_resume(struct device *dev)
u32 ctrl;
spin_lock(&data->lock);
- if (data->clk)
- clk_enable(data->clk);
+ pm_runtime_put_sync(data->dev);
/* restart the scan state machine */
ctrl = __raw_readl(&data->regs->control);