linux-kernel - [PATCH v2] usb: gadget: fsl_udc

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Date:	Fri, 25 Mar 2016 18:11:21 +0300
From:	Dmitry Osipenko <digetx@...il.com>
To:	Felipe Balbi <balbi@...nel.org>, Li Yang <leoli@...escale.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] usb: gadget: fsl_udc_core: Fix pullup status

udc->softconnect should be set regardless of the VBUS state, otherwise
the USB peripheral device, connected during suspend, won't be detected
since can_pullup() would return false and the UDC won't be enabled.

Fixes: 252455c40316 (usb: gadget: fsl driver pullup fix)
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
Changelog:
V2: "(is_on != 0)" changed to "!!is_on" as per Sergei Shtylyov comment,
    cleaned up commit message.

 drivers/usb/gadget/udc/fsl_udc_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index aab5221..4309b4f 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -1220,10 +1220,11 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on)
 
 	udc = container_of(gadget, struct fsl_udc, gadget);
 
+	udc->softconnect = !!is_on;
+
 	if (!udc->vbus_active)
 		return -EOPNOTSUPP;
 
-	udc->softconnect = (is_on != 0);
 	if (can_pullup(udc))
 		fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP),
 				&dr_regs->usbcmd);
-- 
2.7.4