Signed-off-by: Sascha Hauer <[email protected]>
---
drivers/usb/imx/chipidea-imx.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/usb/imx/chipidea-imx.c b/drivers/usb/imx/chipidea-imx.c
index f4354876c..ccd534613 100644
--- a/drivers/usb/imx/chipidea-imx.c
+++ b/drivers/usb/imx/chipidea-imx.c
@@ -27,6 +27,7 @@
#include <usb/fsl_usb2.h>
#include <linux/err.h>
#include <linux/phy/phy.h>
+#include <linux/clk.h>
#define MXC_EHCI_PORTSC_MASK ((0xf << 28) | (1 << 25))
@@ -44,6 +45,7 @@ struct imx_chipidea {
struct regulator *vbus;
struct phy *phy;
struct usb_phy *usbphy;
+ struct clk *clk;
};
static int imx_chipidea_port_init(void *drvdata)
@@ -268,6 +270,17 @@ static int imx_chipidea_probe(struct device_d *dev)
if (IS_ERR(ci->vbus))
ci->vbus = NULL;
+ /*
+ * Some devices have more than one clock, in this case they are enabled
+ * by default in the clock driver. At least enable the main clock for
+ * devices which have only one.
+ */
+ ci->clk = clk_get(dev, NULL);
+ if (IS_ERR(ci->clk))
+ return PTR_ERR(ci->clk);
+
+ clk_enable(ci->clk);
+
if (of_property_read_bool(dev->device_node, "fsl,usbphy")) {
ci->phy = of_phy_get_by_phandle(dev, "fsl,usbphy", 0);
if (IS_ERR(ci->phy)) {
--
2.11.0
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