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authorFelipe Balbi <felipe.balbi@linux.intel.com>2018-04-11 12:56:24 +0300
committerFelipe Balbi <felipe.balbi@linux.intel.com>2018-05-21 10:01:00 +0300
commit4439661d64f5afa77f2df1e3450da5e22ab6532e (patch)
tree4b2cb5714a788c4560eef0abef64d27628402f00
parentf62afb4929a83cb7e81bd2ac411f2d4977716cf6 (diff)
usb: dwc3: gadget: assign resource_index inside get_transfer_index()
Instead of returning resource index number just to assign it to a field inside 'dep' which was passed as argument, we can assing dep->resource_index from inside dwc3_gadget_ep_get_transfer_index() itself. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
-rw-r--r--drivers/usb/dwc3/ep0.c2
-rw-r--r--drivers/usb/dwc3/gadget.c9
-rw-r--r--drivers/usb/dwc3/gadget.h5
3 files changed, 6 insertions, 10 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 826fee2bc8cc..b587ae14f773 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -79,7 +79,7 @@ static int dwc3_ep0_start_trans(struct dwc3_ep *dep)
if (ret < 0)
return ret;
- dep->resource_index = dwc3_gadget_ep_get_transfer_index(dep);
+ dwc3_gadget_ep_get_transfer_index(dep);
dwc->ep0_next_event = DWC3_EP0_COMPLETE;
return 0;
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index abdc3ac24cc6..9e4db9cdb95e 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -683,8 +683,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action)
if (ret < 0)
return ret;
- dep->resource_index = dwc3_gadget_ep_get_transfer_index(dep);
- WARN_ON_ONCE(!dep->resource_index);
+ dwc3_gadget_ep_get_transfer_index(dep);
}
out:
@@ -1245,10 +1244,8 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep)
return ret;
}
- if (starting) {
- dep->resource_index = dwc3_gadget_ep_get_transfer_index(dep);
- WARN_ON_ONCE(!dep->resource_index);
- }
+ if (starting)
+ dwc3_gadget_ep_get_transfer_index(dep);
return 0;
}
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 578aa856f986..db610c56f1d6 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -98,13 +98,12 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol);
* Caller should take care of locking. Returns the transfer resource
* index for a given endpoint.
*/
-static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3_ep *dep)
+static inline void dwc3_gadget_ep_get_transfer_index(struct dwc3_ep *dep)
{
u32 res_id;
res_id = dwc3_readl(dep->regs, DWC3_DEPCMD);
-
- return DWC3_DEPCMD_GET_RSC_IDX(res_id);
+ dep->resource_index = DWC3_DEPCMD_GET_RSC_IDX(res_id);
}
#endif /* __DRIVERS_USB_DWC3_GADGET_H */