During typical gadget operation, dwc2 clock was enabled 3 times: from
dwc2_gadget_init(), dwc2_hsotg_udc_start() and dwc2_hsotg_pullup(), and
then disabled in s3c_hsotg_pullup(), s3c_hsotg_udc_stop() and
dwc2_hsotg_remove(). This really makes no sense, so leave clock control
code only in dwc2_gadget_init/remove functions.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/usb/dwc2/gadget.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 410ea6e..3f656d9 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3068,8 +3068,6 @@ static int dwc2_hsotg_udc_start(struct usb_gadget *gadget,
hsotg->gadget.dev.of_node = hsotg->dev->of_node;
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
- clk_enable(hsotg->clk);
-
ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies),
hsotg->supplies);
if (ret) {
@@ -3139,8 +3137,6 @@ static int dwc2_hsotg_udc_stop(struct usb_gadget *gadget)
regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
- clk_disable(hsotg->clk);
-
mutex_unlock(&hsotg->init_mutex);
return 0;
@@ -3174,7 +3170,6 @@ static int dwc2_hsotg_pullup(struct usb_gadget *gadget, int is_on)
mutex_lock(&hsotg->init_mutex);
spin_lock_irqsave(&hsotg->lock, flags);
if (is_on) {
- clk_enable(hsotg->clk);
hsotg->enabled = 1;
dwc2_hsotg_core_init_disconnected(hsotg, false);
dwc2_hsotg_core_connect(hsotg);
@@ -3182,7 +3177,6 @@ static int dwc2_hsotg_pullup(struct usb_gadget *gadget, int is_on)
dwc2_hsotg_core_disconnect(hsotg);
dwc2_hsotg_disconnect(hsotg);
hsotg->enabled = 0;
- clk_disable(hsotg->clk);
}
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
--
1.9.2
--
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