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, 14 insertions, 4 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index cc6b89a75f99..704a5e0069c0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -144,9 +144,16 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 		}
 	}
 
+	/* Custom setup (if needed) */
+	if (plat_dat->setup) {
+		plat_dat->bsp_priv = plat_dat->setup(pdev);
+		if (IS_ERR(plat_dat->bsp_priv))
+			return PTR_ERR(plat_dat->bsp_priv);
+	}
+
 	/* Custom initialisation (if needed)*/
 	if (plat_dat->init) {
-		ret = plat_dat->init(pdev);
+		ret = plat_dat->init(pdev, plat_dat->bsp_priv);
 		if (unlikely(ret))
 			return ret;
 	}
@@ -203,7 +210,10 @@ static int stmmac_pltfr_remove(struct platform_device *pdev)
 	int ret = stmmac_dvr_remove(ndev);
 
 	if (priv->plat->exit)
-		priv->plat->exit(pdev);
+		priv->plat->exit(pdev, priv->plat->bsp_priv);
+
+	if (priv->plat->free)
+		priv->plat->free(pdev, priv->plat->bsp_priv);
 
 	return ret;
 }
@@ -218,7 +228,7 @@ static int stmmac_pltfr_suspend(struct device *dev)
 
 	ret = stmmac_suspend(ndev);
 	if (priv->plat->exit)
-		priv->plat->exit(pdev);
+		priv->plat->exit(pdev, priv->plat->bsp_priv);
 
 	return ret;
 }
@@ -230,7 +240,7 @@ static int stmmac_pltfr_resume(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 
 	if (priv->plat->init)
-		priv->plat->init(pdev);
+		priv->plat->init(pdev, priv->plat->bsp_priv);
 
 	return stmmac_resume(ndev);
 }