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Signed-off-by: Yangtao Li --- v3: -Reduce the number of clk variables drivers/net/ethernet/broadcom/bcm63xx_enet.c | 47 ++++++-------------- drivers/net/ethernet/broadcom/bcm63xx_enet.h | 6 --- 2 files changed, 13 insertions(+), 40 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c index 3c0e3b9828be..dcc741837d50 100644 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c @@ -1718,6 +1718,7 @@ static int bcm_enet_probe(struct platform_device *pdev) struct bcm63xx_enet_platform_data *pd; int irq, irq_rx, irq_tx; struct mii_bus *bus; + struct clk *clk; int i, ret; if (!bcm_enet_shared_base[0]) @@ -1752,14 +1753,11 @@ static int bcm_enet_probe(struct platform_device *pdev) priv->irq_rx = irq_rx; priv->irq_tx = irq_tx; - priv->mac_clk = devm_clk_get(&pdev->dev, "enet"); - if (IS_ERR(priv->mac_clk)) { - ret = PTR_ERR(priv->mac_clk); + clk = devm_clk_get_enabled(&pdev->dev, "enet"); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); goto out; } - ret = clk_prepare_enable(priv->mac_clk); - if (ret) - goto out; /* initialize default and fetch platform data */ priv->rx_ring_size = BCMENET_DEF_RX_DESC; @@ -1789,15 +1787,11 @@ static int bcm_enet_probe(struct platform_device *pdev) if (priv->has_phy && !priv->use_external_mii) { /* using internal PHY, enable clock */ - priv->phy_clk = devm_clk_get(&pdev->dev, "ephy"); - if (IS_ERR(priv->phy_clk)) { - ret = PTR_ERR(priv->phy_clk); - priv->phy_clk = NULL; - goto out_disable_clk_mac; + clk = devm_clk_get_enabled(&pdev->dev, "ephy"); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + goto out; } - ret = clk_prepare_enable(priv->phy_clk); - if (ret) - goto out_disable_clk_mac; } /* do minimal hardware init to be able to probe mii bus */ @@ -1889,10 +1883,7 @@ static int bcm_enet_probe(struct platform_device *pdev) out_uninit_hw: /* turn off mdc clock */ enet_writel(priv, 0, ENET_MIISC_REG); - clk_disable_unprepare(priv->phy_clk); -out_disable_clk_mac: - clk_disable_unprepare(priv->mac_clk); out: free_netdev(dev); return ret; @@ -1927,10 +1918,6 @@ static void bcm_enet_remove(struct platform_device *pdev) bcm_enet_mdio_write_mii); } - /* disable hw block clocks */ - clk_disable_unprepare(priv->phy_clk); - clk_disable_unprepare(priv->mac_clk); - free_netdev(dev); } @@ -2648,6 +2635,7 @@ static int bcm_enetsw_probe(struct platform_device *pdev) struct bcm63xx_enetsw_platform_data *pd; struct resource *res_mem; int ret, irq_rx, irq_tx; + struct clk *mac_clk; if (!bcm_enet_shared_base[0]) return -EPROBE_DEFER; @@ -2694,14 +2682,11 @@ static int bcm_enetsw_probe(struct platform_device *pdev) goto out; } - priv->mac_clk = devm_clk_get(&pdev->dev, "enetsw"); - if (IS_ERR(priv->mac_clk)) { - ret = PTR_ERR(priv->mac_clk); + mac_clk = devm_clk_get_enabled(&pdev->dev, "enetsw"); + if (IS_ERR(mac_clk)) { + ret = PTR_ERR(mac_clk); goto out; } - ret = clk_prepare_enable(priv->mac_clk); - if (ret) - goto out; priv->rx_chan = 0; priv->tx_chan = 1; @@ -2720,7 +2705,7 @@ static int bcm_enetsw_probe(struct platform_device *pdev) ret = register_netdev(dev); if (ret) - goto out_disable_clk; + goto out; netif_carrier_off(dev); platform_set_drvdata(pdev, dev); @@ -2729,8 +2714,6 @@ static int bcm_enetsw_probe(struct platform_device *pdev) return 0; -out_disable_clk: - clk_disable_unprepare(priv->mac_clk); out: free_netdev(dev); return ret; @@ -2740,16 +2723,12 @@ static int bcm_enetsw_probe(struct platform_device *pdev) /* exit func, stops hardware and unregisters netdevice */ static void bcm_enetsw_remove(struct platform_device *pdev) { - struct bcm_enet_priv *priv; struct net_device *dev; /* stop netdevice */ dev = platform_get_drvdata(pdev); - priv = netdev_priv(dev); unregister_netdev(dev); - clk_disable_unprepare(priv->mac_clk); - free_netdev(dev); } diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.h b/drivers/net/ethernet/broadcom/bcm63xx_enet.h index 78f1830fb3cb..e98838b8b92f 100644 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h @@ -316,12 +316,6 @@ struct bcm_enet_priv { /* lock mib update between userspace request and workqueue */ struct mutex mib_update_lock; - /* mac clock */ - struct clk *mac_clk; - - /* phy clock if internal phy is used */ - struct clk *phy_clk; - /* network device reference */ struct net_device *net_dev;