1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 073b938f9135..d9a6add0c852 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -870,8 +870,8 @@ static void clk_on(struct at91_udc *udc)
         if (udc->clocked)
                 return;
         udc->clocked = 1;
-        clk_enable(udc->iclk);
-        clk_enable(udc->fclk);
+        clk_prepare_enable(udc->iclk);
+        clk_prepare_enable(udc->fclk);
 }
 
 static void clk_off(struct at91_udc *udc)
@@ -880,8 +880,8 @@ static void clk_off(struct at91_udc *udc)
                 return;
         udc->clocked = 0;
         udc->gadget.speed = USB_SPEED_UNKNOWN;
-        clk_disable(udc->fclk);
-        clk_disable(udc->iclk);
+        clk_disable_unprepare(udc->fclk);
+        clk_disable_unprepare(udc->iclk);
 }
 
 /*
@@ -1725,7 +1725,7 @@ static int at91udc_probe(struct platform_device *pdev)
         /* init software state */
         udc = &controller;
         udc->gadget.dev.parent = dev;
-        if (pdev->dev.of_node)
+        if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node)
                 at91udc_of_init(udc, pdev->dev.of_node);
         else
                 memcpy(&udc->board, dev->platform_data,
@@ -1782,12 +1782,14 @@ static int at91udc_probe(struct platform_device *pdev)
         }
 
         /* don't do anything until we have both gadget driver and VBUS */
-        clk_enable(udc->iclk);
+        retval = clk_prepare_enable(udc->iclk);
+        if (retval)
+                goto fail1;
         at91_udp_write(udc, AT91_UDP_TXVC, AT91_UDP_TXVC_TXVDIS);
         at91_udp_write(udc, AT91_UDP_IDR, 0xffffffff);
         /* Clear all pending interrupts - UDP may be used by bootloader. */
         at91_udp_write(udc, AT91_UDP_ICR, 0xffffffff);
-        clk_disable(udc->iclk);
+        clk_disable_unprepare(udc->iclk);
 
         /* request UDC and maybe VBUS irqs */
         udc->udp_irq = platform_get_irq(pdev, 0);