allow the driver to request it's clock and enable it
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
---
drivers/net/designware.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index ec51825..1cbcd5a 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -32,8 +32,10 @@
#include <asm/mmu.h>
#include <net/designware.h>
#include <linux/phy.h>
-#include "designware.h"
+#include <linux/clk.h>
+#include <linux/err.h>
+#include "designware.h"
struct dw_eth_dev {
struct eth_device netdev;
@@ -390,6 +392,8 @@ static int dwc_ether_probe(struct device_d *dev)
struct mii_bus *miibus;
void __iomem *base;
struct dwc_ether_platform_data *pdata = dev->platform_data;
+ struct clk *clk;
+ int ret;
if (!pdata) {
printf("dwc_ether: no platform_data\n");
@@ -427,6 +431,20 @@ static int dwc_ether_probe(struct device_d *dev)
miibus->write = dwc_ether_mii_write;
miibus->priv = priv;
+ clk = clk_get(dev, NULL);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ dev_err(dev, "no clk ret = %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_enable(clk);
+ if (ret) {
+ dev_err(dev, "can not enable clk ret = %d\n", ret);
+ clk_put(clk);
+ return ret;
+ }
+
mdiobus_register(miibus);
eth_register(edev);
return 0;
--
1.7.10.4
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