linux-kernel - [PATCH 6/7][v4]usb:fsl:otg: Combine host/gadget start/resume for ID change

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Date:	Thu, 27 Aug 2015 22:13:06 +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 6/7][v4]usb:fsl:otg: Combine host/gadget start/resume for ID change

Make call to fsl_otg_event for each id change even.

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@...escale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@...escale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@...escale.com>
---
 drivers/usb/phy/phy-fsl-usb.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 3b8a9e5..689516d 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -733,6 +733,7 @@ irqreturn_t fsl_otg_isr(int irq, void *dev_id)
 {
 	struct otg_fsm *fsm = &((struct fsl_otg *)dev_id)->fsm;
 	struct usb_otg *otg = ((struct fsl_otg *)dev_id)->phy.otg;
+	struct fsl_otg *otg_dev = dev_id;
 	u32 otg_int_src, otg_sc;
 
 	otg_sc = fsl_readl(&usb_dr_regs->otgsc);
@@ -762,18 +763,8 @@ irqreturn_t fsl_otg_isr(int irq, void *dev_id)
 				otg->gadget->is_a_peripheral = !fsm->id;
 			VDBG("ID int (ID is %d)\n", fsm->id);
 
-			if (fsm->id) {	/* switch to gadget */
-				schedule_delayed_work(
-					&((struct fsl_otg *)dev_id)->otg_event,
-					100);
-			} else {	/* switch to host */
-				cancel_delayed_work(&
-						    ((struct fsl_otg *)dev_id)->
-						    otg_event);
-				fsl_otg_start_gadget(fsm, 0);
-				otg_drv_vbus(fsm, 1);
-				fsl_otg_start_host(fsm, 1);
-			}
+			schedule_delayed_work(&otg_dev->otg_event, 100);
+
 			return IRQ_HANDLED;
 		}
 	}
-- 
1.8.3.1

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