linux-kernel - [PATCH v3 2/5] usb: musb: dsps: Call usb_phy(_shutdown/_init) during musb_platform

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Date:	Tue, 13 May 2014 14:01:42 +0530
From:	George Cherian <george.cherian@...com>
To:	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	<linux-omap@...r.kernel.org>
CC:	<balbi@...com>, <gregkh@...uxfoundation.org>, <zonque@...il.com>,
	George Cherian <george.cherian@...com>
Subject: [PATCH v3 2/5] usb: musb: dsps: Call usb_phy(_shutdown/_init) during musb_platform_reset()

For DSPS platform usb_phy_vbus(_off/_on) are NOPs.
So during musb_platform_reset() call usb_phy(_shutdown/_init)

Signed-off-by: George Cherian <george.cherian@...com>
---
 drivers/usb/musb/musb_dsps.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 51beb13..74c4193 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -543,7 +543,11 @@ static void dsps_musb_reset(struct musb *musb)
 	const struct dsps_musb_wrapper *wrp = glue->wrp;
 
 	dsps_writel(musb->ctrl_base, wrp->control, (1 << wrp->reset));
-	udelay(100);
+	usleep_range(100, 200);
+	usb_phy_shutdown(musb->xceiv);
+	usleep_range(100, 200);
+	usb_phy_init(musb->xceiv);
+
 }
 
 static struct musb_platform_ops dsps_ops = {
-- 
1.8.3.1

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