diff options
| author | Zixun LI <admin@hifiphile.com> | 2024-07-25 17:32:00 +0200 |
|---|---|---|
| committer | Mattijs Korpershoek <mkorpershoek@baylibre.com> | 2024-08-06 14:58:14 +0200 |
| commit | ef5e1d1f97623f8c549c6fffd481bb120df12dcb (patch) | |
| tree | 4cf483f80e52e7dd1f361a4967a4c1677d81c2c4 | |
| parent | 7a448c8f384022a2585e8439c2a182ada3e4aab2 (diff) | |
usb: gadget: atmel: Add attach/detach support
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>
| -rw-r--r-- | drivers/usb/gadget/atmel_usba_udc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index ea9ad7585eb..a7b96449f8e 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -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 = { |