[PATCH 1/2] net: davinci_mdio: enable and disable clock
Daniel Mack
zonque at gmail.com
Fri Aug 3 05:43:35 EST 2012
Make the driver control the device clocks. Appearantly, the Davinci
platform probes this driver with the clock all powered up, but on OMAP,
this isn't the case.
Signed-off-by: Daniel Mack <zonque at gmail.com>
---
drivers/net/ethernet/ti/davinci_mdio.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index cd7ee20..b4b6015 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -332,6 +332,8 @@ 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);
@@ -379,8 +381,11 @@ bail_out:
if (data->bus)
mdiobus_free(data->bus);
- if (data->clk)
+ if (data->clk) {
+ clk_disable(data->clk);
clk_put(data->clk);
+ }
+
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
@@ -397,8 +402,11 @@ static int __devexit davinci_mdio_remove(struct platform_device *pdev)
if (data->bus)
mdiobus_free(data->bus);
- if (data->clk)
+ if (data->clk) {
+ clk_disable(data->clk);
clk_put(data->clk);
+ }
+
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
@@ -427,6 +435,8 @@ static int davinci_mdio_suspend(struct device *dev)
data->suspended = true;
spin_unlock(&data->lock);
+ clk_disable(data->clk);
+
return 0;
}
@@ -435,6 +445,8 @@ static int davinci_mdio_resume(struct device *dev)
struct davinci_mdio_data *data = dev_get_drvdata(dev);
u32 ctrl;
+ clk_enable(data->clk);
+
spin_lock(&data->lock);
pm_runtime_put_sync(data->dev);
--
1.7.11.2
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