diff options
4 files changed, 185 insertions, 55 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c index ef1023930fd0..20fc455b3337 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c @@ -46,22 +46,12 @@ static int dwmac_generic_probe(struct platform_device *pdev) plat_dat->unicast_filter_entries = 1; } - /* Custom initialisation (if needed) */ - if (plat_dat->init) { - ret = plat_dat->init(pdev, plat_dat->bsp_priv); - if (ret) - goto err_remove_config_dt; - } - - ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + ret = stmmac_pltfr_probe(pdev, plat_dat, &stmmac_res); if (ret) - goto err_exit; + goto err_remove_config_dt; return 0; -err_exit: - if (plat_dat->exit) - plat_dat->exit(pdev, plat_dat->bsp_priv); err_remove_config_dt: if (pdev->dev.of_node) stmmac_remove_config_dt(pdev, plat_dat); diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index fa0fc53c56a3..e62940414e54 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -708,7 +708,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev) if (ret) return ret; - plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); if (IS_ERR(plat_dat)) { dev_err(dev, "dt configuration failed\n"); return PTR_ERR(plat_dat); @@ -717,10 +717,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev) plat_dat->clks_config = ethqos_clks_config; ethqos = devm_kzalloc(dev, sizeof(*ethqos), GFP_KERNEL); - if (!ethqos) { - ret = -ENOMEM; - goto out_config_dt; - } + if (!ethqos) + return -ENOMEM; ethqos->phy_mode = device_get_phy_mode(dev); switch (ethqos->phy_mode) { @@ -734,19 +732,15 @@ static int qcom_ethqos_probe(struct platform_device *pdev) ethqos->configure_func = ethqos_configure_sgmii; break; case -ENODEV: - ret = -ENODEV; - goto out_config_dt; + return -ENODEV; default: - ret = -EINVAL; - goto out_config_dt; + return -EINVAL; } ethqos->pdev = pdev; ethqos->rgmii_base = devm_platform_ioremap_resource_byname(pdev, "rgmii"); - if (IS_ERR(ethqos->rgmii_base)) { - ret = PTR_ERR(ethqos->rgmii_base); - goto out_config_dt; - } + if (IS_ERR(ethqos->rgmii_base)) + return PTR_ERR(ethqos->rgmii_base); ethqos->mac_base = stmmac_res.addr; @@ -757,24 +751,20 @@ static int qcom_ethqos_probe(struct platform_device *pdev) ethqos->has_emac_ge_3 = data->has_emac_ge_3; ethqos->link_clk = devm_clk_get(dev, data->link_clk_name ?: "rgmii"); - if (IS_ERR(ethqos->link_clk)) { - ret = PTR_ERR(ethqos->link_clk); - goto out_config_dt; - } + if (IS_ERR(ethqos->link_clk)) + return PTR_ERR(ethqos->link_clk); ret = ethqos_clks_config(ethqos, true); if (ret) - goto out_config_dt; + return ret; ret = devm_add_action_or_reset(dev, ethqos_clks_disable, ethqos); if (ret) - goto out_config_dt; + return ret; ethqos->serdes_phy = devm_phy_optional_get(dev, "serdes"); - if (IS_ERR(ethqos->serdes_phy)) { - ret = PTR_ERR(ethqos->serdes_phy); - goto out_config_dt; - } + if (IS_ERR(ethqos->serdes_phy)) + return PTR_ERR(ethqos->serdes_phy); ethqos->speed = SPEED_1000; ethqos_update_link_clk(ethqos, SPEED_1000); @@ -797,16 +787,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev) plat_dat->serdes_powerdown = qcom_ethqos_serdes_powerdown; } - ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res); - if (ret) - goto out_config_dt; - - return ret; - -out_config_dt: - stmmac_remove_config_dt(pdev, plat_dat); - - return ret; + return devm_stmmac_pltfr_probe(pdev, plat_dat, &stmmac_res); } static const struct of_device_id qcom_ethqos_match[] = { @@ -820,7 +801,6 @@ MODULE_DEVICE_TABLE(of, qcom_ethqos_match); static struct platform_driver qcom_ethqos_driver = { .probe = qcom_ethqos_probe, - .remove_new = stmmac_pltfr_remove, .driver = { .name = "qcom-ethqos", .pm = &stmmac_pltfr_pm_ops, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 3c6b55b60461..231152ee5a32 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -8,6 +8,7 @@ Author: Giuseppe Cavallaro <[email protected]> *******************************************************************************/ +#include <linux/device.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/module.h> @@ -629,6 +630,39 @@ error_pclk_get: return ret; } +static void devm_stmmac_remove_config_dt(void *data) +{ + struct plat_stmmacenet_data *plat = data; + + /* Platform data argument is unused */ + stmmac_remove_config_dt(NULL, plat); +} + +/** + * devm_stmmac_probe_config_dt + * @pdev: platform_device structure + * @mac: MAC address to use + * Description: Devres variant of stmmac_probe_config_dt(). Does not require + * the user to call stmmac_remove_config_dt() at driver detach. + */ +struct plat_stmmacenet_data * +devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) +{ + struct plat_stmmacenet_data *plat; + int ret; + + plat = stmmac_probe_config_dt(pdev, mac); + if (IS_ERR(plat)) + return plat; + + ret = devm_add_action_or_reset(&pdev->dev, + devm_stmmac_remove_config_dt, plat); + if (ret) + return ERR_PTR(ret); + + return plat; +} + /** * stmmac_remove_config_dt - undo the effects of stmmac_probe_config_dt() * @pdev: platform_device structure @@ -651,12 +685,19 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) return ERR_PTR(-EINVAL); } +struct plat_stmmacenet_data * +devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) +{ + return ERR_PTR(-EINVAL); +} + void stmmac_remove_config_dt(struct platform_device *pdev, struct plat_stmmacenet_data *plat) { } #endif /* CONFIG_OF */ EXPORT_SYMBOL_GPL(stmmac_probe_config_dt); +EXPORT_SYMBOL_GPL(devm_stmmac_probe_config_dt); EXPORT_SYMBOL_GPL(stmmac_remove_config_dt); int stmmac_get_platform_resources(struct platform_device *pdev, @@ -702,6 +743,114 @@ int stmmac_get_platform_resources(struct platform_device *pdev, EXPORT_SYMBOL_GPL(stmmac_get_platform_resources); /** + * stmmac_pltfr_init + * @pdev: pointer to the platform device + * @plat: driver data platform structure + * Description: Call the platform's init callback (if any) and propagate + * the return value. + */ +int stmmac_pltfr_init(struct platform_device *pdev, + struct plat_stmmacenet_data *plat) +{ + int ret = 0; + + if (plat->init) + ret = plat->init(pdev, plat->bsp_priv); + + return ret; +} +EXPORT_SYMBOL_GPL(stmmac_pltfr_init); + +/** + * stmmac_pltfr_exit + * @pdev: pointer to the platform device + * @plat: driver data platform structure + * Description: Call the platform's exit callback (if any). + */ +void stmmac_pltfr_exit(struct platform_device *pdev, + struct plat_stmmacenet_data *plat) +{ + if (plat->exit) + plat->exit(pdev, plat->bsp_priv); +} +EXPORT_SYMBOL_GPL(stmmac_pltfr_exit); + +/** + * stmmac_pltfr_probe + * @pdev: platform device pointer + * @plat: driver data platform structure + * @res: stmmac resources structure + * Description: This calls the platform's init() callback and probes the + * stmmac driver. + */ +int stmmac_pltfr_probe(struct platform_device *pdev, + struct plat_stmmacenet_data *plat, + struct stmmac_resources *res) +{ + int ret; + + ret = stmmac_pltfr_init(pdev, plat); + if (ret) + return ret; + + ret = stmmac_dvr_probe(&pdev->dev, plat, res); + if (ret) { + stmmac_pltfr_exit(pdev, plat); + return ret; + } + + return ret; +} +EXPORT_SYMBOL_GPL(stmmac_pltfr_probe); + +static void devm_stmmac_pltfr_remove(void *data) +{ + struct platform_device *pdev = data; + + stmmac_pltfr_remove_no_dt(pdev); +} + +/** + * devm_stmmac_pltfr_probe + * @pdev: pointer to the platform device + * @plat: driver data platform structure + * @res: stmmac resources + * Description: Devres variant of stmmac_pltfr_probe(). Allows users to skip + * calling stmmac_pltfr_remove() on driver detach. + */ +int devm_stmmac_pltfr_probe(struct platform_device *pdev, + struct plat_stmmacenet_data *plat, + struct stmmac_resources *res) +{ + int ret; + + ret = stmmac_pltfr_probe(pdev, plat, res); + if (ret) + return ret; + + return devm_add_action_or_reset(&pdev->dev, devm_stmmac_pltfr_remove, + pdev); +} +EXPORT_SYMBOL_GPL(devm_stmmac_pltfr_probe); + +/** + * stmmac_pltfr_remove_no_dt + * @pdev: pointer to the platform device + * Description: This undoes the effects of stmmac_pltfr_probe() by removing the + * driver and calling the platform's exit() callback. + */ +void stmmac_pltfr_remove_no_dt(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct stmmac_priv *priv = netdev_priv(ndev); + struct plat_stmmacenet_data *plat = priv->plat; + + stmmac_dvr_remove(&pdev->dev); + stmmac_pltfr_exit(pdev, plat); +} +EXPORT_SYMBOL_GPL(stmmac_pltfr_remove_no_dt); + +/** * stmmac_pltfr_remove * @pdev: platform device pointer * Description: this function calls the main to free the net resources @@ -713,11 +862,7 @@ void stmmac_pltfr_remove(struct platform_device *pdev) struct stmmac_priv *priv = netdev_priv(ndev); struct plat_stmmacenet_data *plat = priv->plat; - stmmac_dvr_remove(&pdev->dev); - - if (plat->exit) - plat->exit(pdev, plat->bsp_priv); - + stmmac_pltfr_remove_no_dt(pdev); stmmac_remove_config_dt(pdev, plat); } EXPORT_SYMBOL_GPL(stmmac_pltfr_remove); @@ -737,8 +882,7 @@ static int __maybe_unused stmmac_pltfr_suspend(struct device *dev) struct platform_device *pdev = to_platform_device(dev); ret = stmmac_suspend(dev); - if (priv->plat->exit) - priv->plat->exit(pdev, priv->plat->bsp_priv); + stmmac_pltfr_exit(pdev, priv->plat); return ret; } @@ -755,9 +899,11 @@ static int __maybe_unused stmmac_pltfr_resume(struct device *dev) struct net_device *ndev = dev_get_drvdata(dev); struct stmmac_priv *priv = netdev_priv(ndev); struct platform_device *pdev = to_platform_device(dev); + int ret; - if (priv->plat->init) - priv->plat->init(pdev, priv->plat->bsp_priv); + ret = stmmac_pltfr_init(pdev, priv->plat->bsp_priv); + if (ret) + return ret; return stmmac_resume(dev); } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h index f7e457946681..c5565b2a70ac 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h @@ -13,12 +13,26 @@ struct plat_stmmacenet_data * stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac); +struct plat_stmmacenet_data * +devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac); void stmmac_remove_config_dt(struct platform_device *pdev, struct plat_stmmacenet_data *plat); int stmmac_get_platform_resources(struct platform_device *pdev, struct stmmac_resources *stmmac_res); +int stmmac_pltfr_init(struct platform_device *pdev, + struct plat_stmmacenet_data *plat); +void stmmac_pltfr_exit(struct platform_device *pdev, + struct plat_stmmacenet_data *plat); + +int stmmac_pltfr_probe(struct platform_device *pdev, + struct plat_stmmacenet_data *plat, + struct stmmac_resources *res); +int devm_stmmac_pltfr_probe(struct platform_device *pdev, + struct plat_stmmacenet_data *plat, + struct stmmac_resources *res); +void stmmac_pltfr_remove_no_dt(struct platform_device *pdev); void stmmac_pltfr_remove(struct platform_device *pdev); extern const struct dev_pm_ops stmmac_pltfr_pm_ops; |