usb: chipidea: udc: using structure ci_hdrc device for runtime PM

At current code, it doesn't maintain ci->gadget.dev's runtime PM
status well, eg, during the PM operation, the PM counter for
ci->gadget.dev doesn't be changed accordingly.

In this commit, we use ci_hdrc device instead of ci->gadget.dev
for runtime PM APIs at udc driver, in the way, we handle runtime
PM APIs using unify device structure between core and udc driver.

Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index ffaf46f..ffa6cae 100644 (file)
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1533,7 +1533,7 @@ static void ci_hdrc_gadget_connect(struct usb_gadget *_gadget, int is_active)
        unsigned long flags;
 
        if (is_active) {
-               pm_runtime_get_sync(&_gadget->dev);
+               pm_runtime_get_sync(ci->dev);
                hw_device_reset(ci);
                spin_lock_irqsave(&ci->lock, flags);
                if (ci->driver) {
@@ -1551,7 +1551,7 @@ static void ci_hdrc_gadget_connect(struct usb_gadget *_gadget, int is_active)
                        ci->platdata->notify_event(ci,
                        CI_HDRC_CONTROLLER_STOPPED_EVENT);
                _gadget_stop_activity(&ci->gadget);
-               pm_runtime_put_sync(&_gadget->dev);
+               pm_runtime_put_sync(ci->dev);
                usb_gadget_set_state(_gadget, USB_STATE_NOTATTACHED);
        }
 }
@@ -1636,12 +1636,12 @@ static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on)
        if (ci_otg_is_fsm_mode(ci) || ci->role == CI_ROLE_HOST)
                return 0;
 
-       pm_runtime_get_sync(&ci->gadget.dev);
+       pm_runtime_get_sync(ci->dev);
        if (is_on)
                hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
        else
                hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
-       pm_runtime_put_sync(&ci->gadget.dev);
+       pm_runtime_put_sync(ci->dev);
 
        return 0;
 }
@@ -1839,7 +1839,7 @@ static int ci_udc_stop(struct usb_gadget *gadget)
                        CI_HDRC_CONTROLLER_STOPPED_EVENT);
                _gadget_stop_activity(&ci->gadget);
                spin_lock_irqsave(&ci->lock, flags);
-               pm_runtime_put(&ci->gadget.dev);
+               pm_runtime_put(ci->dev);
        }
 
        spin_unlock_irqrestore(&ci->lock, flags);
@@ -1970,9 +1970,6 @@ static int udc_start(struct ci_hdrc *ci)
        if (retval)
                goto destroy_eps;
 
-       pm_runtime_no_callbacks(&ci->gadget.dev);
-       pm_runtime_enable(&ci->gadget.dev);
-
        return retval;
 
 destroy_eps: