On Thu, Jan 20, 2022 at 8:02 AM Biao Huang <biao.huang@xxxxxxxxxxxx> wrote:
>
> From: Fabien Parent <fparent@xxxxxxxxxxxx>
>
> 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@xxxxxxxxxxxx>
> Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx>
> ---
> drivers/net/ethernet/mediatek/mtk_star_emac.c | 23 +++++++++++++++----
> 1 file changed, 19 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c
> index 1d5dd2015453..26f5020f2e9c 100644
> --- 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>
> @@ -232,6 +233,10 @@ struct mtk_star_ring {
> unsigned int tail;
> };
>
> +struct mtk_star_compat {
> + unsigned char bit_clk_div;
> +};
> +
> struct mtk_star_priv {
> struct net_device *ndev;
>
> @@ -257,6 +262,8 @@ struct mtk_star_priv {
> int duplex;
> int pause;
>
> + const struct mtk_star_compat *compat_data;
> +
> /* Protects against concurrent descriptor access. */
> spinlock_t lock;
>
> @@ -899,7 +906,7 @@ 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)
> @@ -1461,6 +1468,7 @@ 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)
> return devm_register_netdev(dev, ndev);
> }
>
> +static struct mtk_star_compat mtk_star_mt8516_compat = {
static const ... ?
> + .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);
> --
> 2.25.1
>
