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dm: usb: Add a remove() method for USB keyboards 

At present USB keyboards are not properly removed with driver model. Add the
code to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass 2016-01-03 13:50:31 -07:00
parent 70caa97108
commit 8a83487030
1 changed files with 36 additions and 0 deletions
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36
common/usb_kbd.c
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@ -611,6 +611,41 @@ static int usb_kbd_probe(struct udevice *dev)
return ret;
}
static int usb_kbd_remove(struct udevice *dev)
{
struct usb_device *udev = dev_get_parent_priv(dev);
struct usb_kbd_pdata *data;
struct stdio_dev *sdev;
int ret;
sdev = stdio_get_by_name(DEVNAME);
if (!sdev) {
ret = -ENXIO;
goto err;
}
data = udev->privptr;
if (stdio_deregister_dev(sdev, true)) {
ret = -EPERM;
goto err;
}
#ifdef CONFIG_CONSOLE_MUX
if (iomux_doenv(stdin, getenv("stdin"))) {
ret = -ENOLINK;
goto err;
}
#endif
#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
destroy_int_queue(udev, data->intq);
#endif
free(data->new);
free(data);
return 0;
err:
printf("%s: warning, ret=%d", __func__, ret);
return ret;
}
static const struct udevice_id usb_kbd_ids[] = {
{ .compatible = "usb-keyboard" },
{ }
@ -621,6 +656,7 @@ U_BOOT_DRIVER(usb_kbd) = {
.id = UCLASS_KEYBOARD,
.of_match = usb_kbd_ids,
.probe = usb_kbd_probe,
.remove = usb_kbd_remove,
};
static const struct usb_device_id kbd_id_table[] = {