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--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -39,6 +39,7 @@
#include <linux/regulator/consumer.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
+#include <linux/clk.h>
#include <asm/delay.h>
#include <asm/irq.h>
@@ -1436,6 +1437,7 @@ dm9000_probe(struct platform_device *pde
enum of_gpio_flags flags;
struct regulator *power;
bool inv_mac_addr = false;
+ const char *clk_name;
power = devm_regulator_get(dev, "vcc");
if (IS_ERR(power)) {
@@ -1573,6 +1575,18 @@ dm9000_probe(struct platform_device *pde
goto out;
}
+ /* Enable clock if specified */
+ if (!of_property_read_string(dev->of_node, "clock-names", &clk_name)) {
+ struct clk *clk = devm_clk_get(dev, clk_name);
+ if (IS_ERR(clk)) {
+ dev_err(dev, "cannot get clock of %s\n", clk_name);
+ ret = PTR_ERR(clk);
+ goto out;
+ }
+ clk_prepare_enable(clk);
+ dev_info(dev, "enable clock '%s'\n", clk_name);
+ }
+
/* fill in parameters for net-dev structure */
ndev->base_addr = (unsigned long)db->io_addr;
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