net: davinci_mdio - fix to work with run time pm

When run time PM is enable, the clk_enable() gets called via
pm_runtime_get_sync() -> pm_clk_resume(). At this point clk
is not prepared. So this fix make sure the clk is prepared
at before calling pm_runtime_get_sync().

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index c47f0dbcebb..bf39e8b8dd3 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -348,7 +348,6 @@ static int davinci_mdio_probe(struct platform_device *pdev)
         data->bus->priv         = data;
 
         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");
@@ -357,6 +356,8 @@ static int davinci_mdio_probe(struct platform_device *pdev)
                 goto bail_out;
         }
 
+        clk_prepare(data->clk);
+        pm_runtime_get_sync(&pdev->dev);
         dev_set_drvdata(dev, data);
         data->dev = dev;
         spin_lock_init(&data->lock);