mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-31 16:38:12 +00:00
Code Issues Releases Wiki Activity

usb: gadget: atmel_usba_udc: Fixed vbus_prev initial state

Browse source 
If vbus gpio is high at init, we should set vbus_prev to true
accordingly to the current vbus state. Without that, we skip the first
vbus interrupt because the saved vbus state is not consistent.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sylvain Rochet 2015-02-12 18:54:04 +01:00 committed by Felipe Balbi
parent 656e7c36bd
commit 227ab58cff
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/usb/gadget/udc/atmel_usba_udc.c
View file

@ -1811,6 +1811,8 @@ static int atmel_usba_start(struct usb_gadget *gadget,
toggle_bias(udc, 1); toggle_bias(udc, 1);
usba_writel(udc, CTRL, USBA_ENABLE_MASK); usba_writel(udc, CTRL, USBA_ENABLE_MASK);
usba_int_enb_set(udc, USBA_END_OF_RESET); usba_int_enb_set(udc, USBA_END_OF_RESET);
udc->vbus_prev = 1;
} }
spin_unlock_irqrestore(&udc->lock, flags); spin_unlock_irqrestore(&udc->lock, flags);