[PATCH 3/3] drivers: net: cpsw: use of_platform_depopulate()

From: Grygorii Strashko
Date: Fri Jul 22 2016 - 09:59:29 EST


Use of_platform_depopulate() in cpsw_remove() instead of
of_device_unregister(), because CSPW child devices will not be
recreated otherwise on next insmod. of_platform_depopulate() is
correct way now as it will ensure that all steps done in
of_platform_populate() are reverted, including cleaning up of
OF_POPULATED flag.

Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
---
drivers/net/ethernet/ti/cpsw.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index a4d6eb5..ca5890f 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2576,15 +2576,6 @@ clean_ndev_ret:
return ret;
}

-static int cpsw_remove_child_device(struct device *dev, void *c)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- of_device_unregister(pdev);
-
- return 0;
-}
-
static int cpsw_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
@@ -2603,7 +2594,7 @@ static int cpsw_remove(struct platform_device *pdev)

cpsw_ale_destroy(priv->ale);
cpdma_ctlr_destroy(priv->dma);
- device_for_each_child(&pdev->dev, NULL, cpsw_remove_child_device);
+ of_platform_depopulate(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (priv->data.dual_emac)
--
2.9.2