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usb: Do not log an error when no devices is plugged into a root-hub-less hcd

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Before this commit u-boot would print the following on boot with musb and
no usb device plugged in:

starting USB...
USB0:   Port not available.
USB error: all controllers failed lowlevel init

This commit changes this to:

starting USB...
USB0:   Port not available.

Which is the correct thing to do since the low-level init went fine.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2015-01-11 20:34:46 +01:00 committed by Marek Vasut
parent 3cbcb28928
commit d906bbc262
1 changed files with 5 additions and 4 deletions
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9
common/usb.c
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@ -59,6 +59,7 @@ int usb_init(void)
void *ctrl;
struct usb_device *dev;
int i, start_index = 0;
int controllers_initialized = 0;
int ret;
dev_index = 0;
@ -78,6 +79,7 @@ int usb_init(void)
ret = usb_lowlevel_init(i, USB_INIT_HOST, &ctrl);
if (ret == -ENODEV) { /* No such device. */
puts("Port not available.\n");
controllers_initialized++;
continue;
}
@ -89,6 +91,7 @@ int usb_init(void)
* lowlevel init is OK, now scan the bus for devices
* i.e. search HUBs and configure them
*/
controllers_initialized++;
start_index = dev_index;
printf("scanning bus %d for devices... ", i);
dev = usb_alloc_new_device(ctrl);
@ -110,12 +113,10 @@ int usb_init(void)
debug("scan end\n");
/* if we were not able to find at least one working bus, bail out */
if (!usb_started) {
if (controllers_initialized == 0)
puts("USB error: all controllers failed lowlevel init\n");
return -1;
}
return 0;
return usb_started ? 0 : -1;
}
/******************************************************************************