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usb: gadget: atmel: Add attach/detach support

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Add controller attach/detach support by using
usb_gadget_ops.pullup() function.

Signed-off-by: Zixun LI <admin@hifiphile.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20240725153204.358925-7-admin@hifiphile.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
This commit is contained in:
Zixun LI
2024-07-25 17:32:00 +02:00
committed by Mattijs Korpershoek
parent 7a448c8f38
commit ef5e1d1f97
1 changed files with 18 additions and 0 deletions
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18
drivers/usb/gadget/atmel_usba_udc.c
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@@ -506,10 +506,28 @@ usba_udc_set_selfpowered(struct usb_gadget *gadget, int is_selfpowered)
return 0;
}
static int usba_udc_pullup(struct usb_gadget *gadget, int is_on)
{
struct usba_udc *udc = to_usba_udc(gadget);
u32 ctrl;
ctrl = usba_readl(udc, CTRL);
if (is_on)
ctrl &= ~USBA_DETACH;
else
ctrl |= USBA_DETACH;
usba_writel(udc, CTRL, ctrl);
return 0;
}
static const struct usb_gadget_ops usba_udc_ops = {
.get_frame = usba_udc_get_frame,
.wakeup = usba_udc_wakeup,
.set_selfpowered = usba_udc_set_selfpowered,
.pullup = usba_udc_pullup,
};
static struct usb_endpoint_descriptor usba_ep0_desc = {