net: ethernet: mtk-star-emac: store bit_clk_div in compat structure

Not all the SoC are using the same clock divider. Move the divider into
a compat structure specific to the SoCs.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c
index 95839fd84dabc62a4d37ca76ff1061a8d92e27f8..9c54043f7866f4de788489ff668e2ed9aadb3723 100644 (file)
--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
+++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
 #include <linux/platform_device.h>
@@ -231,6 +232,10 @@ struct mtk_star_ring {
        unsigned int tail;
 };
 
+struct mtk_star_compat {
+       unsigned char bit_clk_div;
+};
+
 struct mtk_star_priv {
        struct net_device *ndev;
 
@@ -256,6 +261,8 @@ struct mtk_star_priv {
        int duplex;
        int pause;
 
+       const struct mtk_star_compat *compat_data;
+
        /* Protects against concurrent descriptor access. */
        spinlock_t lock;
 
@@ -898,7 +905,7 @@ static void mtk_star_init_config(struct mtk_star_priv *priv)
        regmap_write(priv->regs, MTK_STAR_REG_SYS_CONF, val);
        regmap_update_bits(priv->regs, MTK_STAR_REG_MAC_CLK_CONF,
                           MTK_STAR_MSK_MAC_CLK_CONF,
-                          MTK_STAR_BIT_CLK_DIV_10);
+                          priv->compat_data->bit_clk_div);
 }
 
 static void mtk_star_set_mode_rmii(struct mtk_star_priv *priv)
@@ -1460,6 +1467,7 @@ static int mtk_star_probe(struct platform_device *pdev)
 
        priv = netdev_priv(ndev);
        priv->ndev = ndev;
+       priv->compat_data = of_device_get_match_data(&pdev->dev);
        SET_NETDEV_DEV(ndev, dev);
        platform_set_drvdata(pdev, ndev);
 
@@ -1556,10 +1564,17 @@ static int mtk_star_probe(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_OF
+static const struct mtk_star_compat mtk_star_mt8516_compat = {
+       .bit_clk_div = MTK_STAR_BIT_CLK_DIV_10,
+};
+
 static const struct of_device_id mtk_star_of_match[] = {
-       { .compatible = "mediatek,mt8516-eth", },
-       { .compatible = "mediatek,mt8518-eth", },
-       { .compatible = "mediatek,mt8175-eth", },
+       { .compatible = "mediatek,mt8516-eth",
+         .data = &mtk_star_mt8516_compat },
+       { .compatible = "mediatek,mt8518-eth",
+         .data = &mtk_star_mt8516_compat },
+       { .compatible = "mediatek,mt8175-eth",
+         .data = &mtk_star_mt8516_compat },
        { }
 };
 MODULE_DEVICE_TABLE(of, mtk_star_of_match);