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path: root/drivers/net/mdio/mdio-mux-meson-g12a.c
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Diffstat (limited to 'drivers/net/mdio/mdio-mux-meson-g12a.c')
-rw-r--r--drivers/net/mdio/mdio-mux-meson-g12a.c38
1 files changed, 9 insertions, 29 deletions
diff --git a/drivers/net/mdio/mdio-mux-meson-g12a.c b/drivers/net/mdio/mdio-mux-meson-g12a.c
index c4542ecf5623..910e5cf74e89 100644
--- a/drivers/net/mdio/mdio-mux-meson-g12a.c
+++ b/drivers/net/mdio/mdio-mux-meson-g12a.c
@@ -53,10 +53,8 @@
#define MESON_G12A_MDIO_INTERNAL_ID 1
struct g12a_mdio_mux {
- bool pll_is_enabled;
void __iomem *regs;
void *mux_handle;
- struct clk *pclk;
struct clk *pll;
};
@@ -155,14 +153,12 @@ static int g12a_enable_internal_mdio(struct g12a_mdio_mux *priv)
int ret;
/* Enable the phy clock */
- if (!priv->pll_is_enabled) {
+ if (!__clk_is_enabled(priv->pll)) {
ret = clk_prepare_enable(priv->pll);
if (ret)
return ret;
}
- priv->pll_is_enabled = true;
-
/* Initialize ephy control */
writel(EPHY_G12A_ID, priv->regs + ETH_PHY_CNTL0);
@@ -193,10 +189,8 @@ static int g12a_enable_external_mdio(struct g12a_mdio_mux *priv)
writel_relaxed(0x0, priv->regs + ETH_PHY_CNTL2);
/* Disable the phy clock if enabled */
- if (priv->pll_is_enabled) {
+ if (__clk_is_enabled(priv->pll))
clk_disable_unprepare(priv->pll);
- priv->pll_is_enabled = false;
- }
return 0;
}
@@ -311,6 +305,7 @@ static int g12a_mdio_mux_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct g12a_mdio_mux *priv;
+ struct clk *pclk;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -323,34 +318,21 @@ static int g12a_mdio_mux_probe(struct platform_device *pdev)
if (IS_ERR(priv->regs))
return PTR_ERR(priv->regs);
- priv->pclk = devm_clk_get(dev, "pclk");
- if (IS_ERR(priv->pclk))
- return dev_err_probe(dev, PTR_ERR(priv->pclk),
+ pclk = devm_clk_get_enabled(dev, "pclk");
+ if (IS_ERR(pclk))
+ return dev_err_probe(dev, PTR_ERR(pclk),
"failed to get peripheral clock\n");
- /* Make sure the device registers are clocked */
- ret = clk_prepare_enable(priv->pclk);
- if (ret) {
- dev_err(dev, "failed to enable peripheral clock");
- return ret;
- }
-
/* Register PLL in CCF */
ret = g12a_ephy_glue_clk_register(dev);
if (ret)
- goto err;
+ return ret;
ret = mdio_mux_init(dev, dev->of_node, g12a_mdio_switch_fn,
&priv->mux_handle, dev, NULL);
- if (ret) {
+ if (ret)
dev_err_probe(dev, ret, "mdio multiplexer init failed\n");
- goto err;
- }
- return 0;
-
-err:
- clk_disable_unprepare(priv->pclk);
return ret;
}
@@ -360,11 +342,9 @@ static int g12a_mdio_mux_remove(struct platform_device *pdev)
mdio_mux_uninit(priv->mux_handle);
- if (priv->pll_is_enabled)
+ if (__clk_is_enabled(priv->pll))
clk_disable_unprepare(priv->pll);
- clk_disable_unprepare(priv->pclk);
-
return 0;
}