[net-next v2 6/9] net: ethernet: broadcom: bcm63xx_enet: Convert to devm_clk_get_enabled()

Yangtao Li
2024-08-23T07:07:02Z

Convert devm_clk_get(), clk_prepare_enable() to a single
call to devm_clk_get_enabled(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
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..6e288cee2c35 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 *phy_clk, *mac_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);
+ mac_clk = devm_clk_get_enabled(&pdev->dev, "enet");
+ if (IS_ERR(mac_clk)) {
+ ret = PTR_ERR(mac_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;
+ phy_clk = devm_clk_get_enabled(&pdev->dev, "ephy");
+ if (IS_ERR(phy_clk)) {
+ ret = PTR_ERR(phy_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;

--
2.39.0