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net: phy: xilinx-gmii2rgmii: Adopt clock support

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Add clock support to the gmii_to_rgmii IP.
Make clk optional to keep DTB backward compatibility.

Signed-off-by: Vineeth Karumanchi <vineeth.karumanchi@amd.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vineeth Karumanchi 2024-05-28 11:50:08 +05:30 committed by David S. Miller
parent c1d9667108
commit daab0ac53e
1 changed files with 7 additions and 0 deletions
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7
drivers/net/phy/xilinx_gmii2rgmii.c
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@ -15,6 +15,7 @@
#include <linux/mii.h>
#include <linux/mdio.h>
#include <linux/phy.h>
#include <linux/clk.h>
#include <linux/of_mdio.h>
#define XILINX_GMII2RGMII_REG 0x10
@ -85,11 +86,17 @@ static int xgmiitorgmii_probe(struct mdio_device *mdiodev)
struct device *dev = &mdiodev->dev;
struct device_node *np = dev->of_node, *phy_node;
struct gmii2rgmii *priv;
struct clk *clkin;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
clkin = devm_clk_get_optional_enabled(dev, NULL);
if (IS_ERR(clkin))
return dev_err_probe(dev, PTR_ERR(clkin),
"Failed to get and enable clock from Device Tree\n");
phy_node = of_parse_phandle(np, "phy-handle", 0);
if (!phy_node) {
dev_err(dev, "Couldn't parse phy-handle\n");