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path: root/drivers/usb/gadget/m66592-udc.c
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Diffstat (limited to 'drivers/usb/gadget/m66592-udc.c')
-rw-r--r--drivers/usb/gadget/m66592-udc.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 77b44fb48f0..3a8879ec206 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -623,7 +623,6 @@ static void start_ep0(struct m66592_ep *ep, struct m66592_request *req)
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
static void init_controller(struct m66592 *m66592)
{
- usbf_start_clock();
m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
@@ -671,9 +670,7 @@ static void init_controller(struct m66592 *m66592)
static void disable_controller(struct m66592 *m66592)
{
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
- usbf_stop_clock();
-#else
+#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
@@ -686,9 +683,7 @@ static void disable_controller(struct m66592 *m66592)
static void m66592_start_xclock(struct m66592 *m66592)
{
-#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
- usbf_start_clock();
-#else
+#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
u16 tmp;
tmp = m66592_read(m66592, M66592_SYSCFG);
@@ -1539,7 +1534,10 @@ static int __exit m66592_remove(struct platform_device *pdev)
iounmap(m66592->reg);
free_irq(platform_get_irq(pdev, 0), m66592);
m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
- usbf_stop_clock();
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ clk_disable(m66592->clk);
+ clk_put(m66592->clk);
+#endif
kfree(m66592);
return 0;
}
@@ -1556,6 +1554,9 @@ static int __init m66592_probe(struct platform_device *pdev)
int irq;
void __iomem *reg = NULL;
struct m66592 *m66592 = NULL;
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ char clk_name[8];
+#endif
int ret = 0;
int i;
@@ -1614,6 +1615,16 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
+ m66592->clk = clk_get(&pdev->dev, clk_name);
+ if (IS_ERR(m66592->clk)) {
+ dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
+ ret = PTR_ERR(m66592->clk);
+ goto clean_up2;
+ }
+ clk_enable(m66592->clk);
+#endif
INIT_LIST_HEAD(&m66592->gadget.ep_list);
m66592->gadget.ep0 = &m66592->ep[0].ep;
INIT_LIST_HEAD(&m66592->gadget.ep0->ep_list);
@@ -1645,7 +1656,7 @@ static int __init m66592_probe(struct platform_device *pdev)
m66592->ep0_req = m66592_alloc_request(&m66592->ep[0].ep, GFP_KERNEL);
if (m66592->ep0_req == NULL)
- goto clean_up2;
+ goto clean_up3;
m66592->ep0_req->complete = nop_completion;
init_controller(m66592);
@@ -1653,7 +1664,12 @@ static int __init m66592_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
return 0;
+clean_up3:
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
+ clk_disable(m66592->clk);
+ clk_put(m66592->clk);
clean_up2:
+#endif
free_irq(irq, m66592);
clean_up:
if (m66592) {