linux-kernel - [PATCH 4/7][v5]usb:fsl:otg: Signal host drv when host is otg

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Message-ID: <1451301154-14422-5-git-send-email-ramneek.mehresh@freescale.com>
Date:	Mon, 28 Dec 2015 16:42:31 +0530
From:	Ramneek Mehresh <ramneek.mehresh@...escale.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<balbi@...com>, <stern@...land.harvard.edu>,
	<gregkh@...uxfoundation.org>, <linux-usb@...r.kernel.org>,
	Ramneek Mehresh <ramneek.mehresh@...escale.com>
Subject: [PATCH 4/7][v5]usb:fsl:otg: Signal host drv when host is otg

Set is_otg boolean flag to signal host driver when host
is running in context of otg host suspend/resume.

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@...escale.com>
---
 drivers/usb/phy/phy-fsl-usb.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 4e58aee..815c22c 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -463,6 +463,7 @@ void otg_reset_controller(void)
 int fsl_otg_start_host(struct otg_fsm *fsm, int on)
 {
 	struct usb_otg *otg = fsm->otg;
+	struct usb_bus *host = otg->host;
 	struct device *dev;
 	struct fsl_otg *otg_dev =
 		container_of(otg->usb_phy, struct fsl_otg, phy);
@@ -485,6 +486,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
 		else {
 			otg_reset_controller();
 			VDBG("host on......\n");
+			host->is_otg = 1;
 			if (dev->driver->pm && dev->driver->pm->resume) {
 				retval = dev->driver->pm->resume(dev);
 				if (fsm->id) {
@@ -510,8 +512,11 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
 		else {
 			VDBG("host off......\n");
 			if (dev && dev->driver) {
-				if (dev->driver->pm && dev->driver->pm->suspend)
+				if (dev->driver->pm &&
+					dev->driver->pm->suspend) {
+					host->is_otg = 1;
 					retval = dev->driver->pm->suspend(dev);
+				}
 				if (fsm->id)
 					/* default-b */
 					fsl_otg_drv_vbus(fsm, 0);
-- 
1.8.3.1

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