From: Sylvain Rochet <sylvain.rochet@finsecur.com>
Date: Thu, 12 Feb 2015 17:54:04 +0000 (+0100)
Subject: usb: gadget: atmel_usba_udc: Fixed vbus_prev initial state
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=227ab58cff3c26ec279598112887d6bcca677a0c;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

usb: gadget: atmel_usba_udc: Fixed vbus_prev initial state

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>
---

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index d79cb35dbf8a..e63c6fc8173b 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1811,6 +1811,8 @@ static int atmel_usba_start(struct usb_gadget *gadget,
 		toggle_bias(udc, 1);
 		usba_writel(udc, CTRL, USBA_ENABLE_MASK);
 		usba_int_enb_set(udc, USBA_END_OF_RESET);
+
+		udc->vbus_prev = 1;
 	}
 	spin_unlock_irqrestore(&udc->lock, flags);