net: stmmac: Allocate and pass soc/board specific data to callbacks

The current .init and .exit callbacks requires access to driver
private data structures. This is not a good seperation and abstraction.

Instead, we add a new .setup callback for allocating private data, and
pass the returned pointer to the other callbacks.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 33ace712e7e8..0a5a7aca562e 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -113,8 +113,10 @@ struct plat_stmmacenet_data {
         int max_speed;
         void (*fix_mac_speed)(void *priv, unsigned int speed);
         void (*bus_setup)(void __iomem *ioaddr);
-        int (*init)(struct platform_device *pdev);
-        void (*exit)(struct platform_device *pdev);
+        void *(*setup)(struct platform_device *pdev);
+        void (*free)(struct platform_device *pdev, void *priv);
+        int (*init)(struct platform_device *pdev, void *priv);
+        void (*exit)(struct platform_device *pdev, void *priv);
         void *custom_cfg;
         void *custom_data;
         void *bsp_priv;