linux-kernel - [PATCH 14/16] usb: musb: dsps: add MUSB_DEVCTL

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Message-Id: <1374516607-2705-15-git-send-email-bigeasy@linutronix.de>
Date:	Mon, 22 Jul 2013 20:10:05 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	balbi@...com, george.cherian@...com,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: [PATCH 14/16] usb: musb: dsps: add MUSB_DEVCTL_SESSION back after removal

This patch adds the MUSB_DEVCTL_SESSION back after it has been removed.
If it is missing then the host session is not recognized. This bit is
added initially added in musb_start() and removed after the first device
disconnect.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---
 drivers/usb/musb/musb_dsps.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 2e45723..1a2b163 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -186,6 +186,9 @@ static void otg_timer(unsigned long _musb)
 		dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl);
 
 		devctl = dsps_readb(musb->mregs, MUSB_DEVCTL);
+		devctl |= MUSB_DEVCTL_SESSION;
+		dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+
 		if (devctl & MUSB_DEVCTL_BDEVICE) {
 			musb->xceiv->state = OTG_STATE_B_IDLE;
 			MUSB_DEV_MODE(musb);
-- 
1.8.3.2

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