[U-Boot] [PATCH v2] usb.h: Always declare usb function prototypes

[Hans de Goede]

There is no harm in declaring the function prototypes even if nothing
implements them, and when CONFIG_DM_USB=y the various usb functions are
available regardless of any controller drivers being enabled.

This fixes compile warnings due to missing prototypes on ARCHs where
the ARCH Kconfig always enables CONFIG_DM_USB and various usb drivers.

One could argue that in the case of no controllers CONFIG_DM_USB should not
be set, but this problem is typically seen during bringup of boards which
do actually have usb controllers.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
Changes in v2:
-Simply always define the function prototypes instead of adding yet another
 condition to the already unwieldly #if def ... || def ... condition
---
 include/usb.h | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/include/usb.h b/include/usb.h
index c709ce2..dca512d 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -171,17 +171,6 @@ enum usb_init_type {
  * this is how the lowlevel part communicate with the outer world
  */
 
-#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || \
-	defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_OHCI_NEW) || \
-	defined(CONFIG_USB_SL811HS) || defined(CONFIG_USB_ISP116X_HCD) || \
-	defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI) || \
-	defined(CONFIG_USB_OMAP3) || defined(CONFIG_USB_DA8XX) || \
-	defined(CONFIG_USB_BLACKFIN) || defined(CONFIG_USB_AM35X) || \
-	defined(CONFIG_USB_MUSB_DSPS) || defined(CONFIG_USB_MUSB_AM35X) || \
-	defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined(CONFIG_USB_MUSB_SUNXI) || \
-	defined(CONFIG_USB_XHCI) || defined(CONFIG_USB_DWC2) || \
-	defined(CONFIG_USB_EMUL)
-
 int usb_lowlevel_init(int index, enum usb_init_type init, void **controller);
 int usb_lowlevel_stop(int index);
 
@@ -216,12 +205,8 @@ void *poll_int_queue(struct usb_device *dev, struct int_queue *queue);
  * in boards init functions e.g. udc_disconnect() used for
  * forced device disconnection from host.
  */
-#elif defined(CONFIG_USB_GADGET_PXA2XX)
-
 extern void udc_disconnect(void);
 
-#endif
-
 /*
  * board-specific hardware initialization, called by
  * usb drivers and u-boot commands
-- 
2.4.2