linux-kernel - [PATCH v3 8/9] usb: chipidea: move usb_otg into struct ci

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Date:	Fri, 22 Aug 2014 17:50:19 +0200
From:	Antoine Ténart 
	<antoine.tenart@...e-electrons.com>
To:	balbi@...com, gregkh@...uxfoundation.org, Peter.Chen@...escale.com,
	kishon@...com, stern@...land.harvard.edu
Cc:	Antoine Ténart 
	<antoine.tenart@...e-electrons.com>,
	sergei.shtylyov@...entembedded.com,
	yoshihiro.shimoda.uh@...esas.com,
	alexandre.belloni@...e-electrons.com,
	thomas.petazzoni@...e-electrons.com, zmxu@...vell.com,
	jszhang@...vell.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 8/9] usb: chipidea: move usb_otg into struct ci_hdrc

Move the usb_otg member from struct usb_phy to struct ci_hdrc. Rework
its initialization taking in account this modification.

Signed-off-by: Antoine Ténart <antoine.tenart@...e-electrons.com>
---
 drivers/usb/chipidea/ci.h      |  1 +
 drivers/usb/chipidea/host.c    |  8 +++-----
 drivers/usb/chipidea/otg_fsm.c | 15 ++-------------
 3 files changed, 6 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index b2caa1772712..dac5ab6adfa2 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -177,6 +177,7 @@ struct ci_hdrc {
 	struct ci_role_driver		*roles[CI_ROLE_END];
 	enum ci_role			role;
 	bool				is_otg;
+	struct usb_otg			otg;
 	struct otg_fsm			fsm;
 	struct ci_otg_fsm_timer_list	*fsm_timer;
 	struct work_struct		work;
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 0b67d78dd953..0952d4adfa4c 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -85,13 +85,11 @@ static int host_start(struct ci_hdrc *ci)
 	if (ret) {
 		goto disable_reg;
 	} else {
-		struct usb_otg *otg = ci->usb_phy->otg;
+		struct usb_otg *otg = &ci->otg;
 
 		ci->hcd = hcd;
-		if (otg) {
-			otg->host = &hcd->self;
-			hcd->self.otg_port = 1;
-		}
+		otg->host = &hcd->self;
+		hcd->self.otg_port = 1;
 	}
 
 	if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 8a64ce87364e..7eb86863fb3c 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -778,20 +778,9 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
 int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
 {
 	int retval = 0;
-	struct usb_otg *otg;
 
-	otg = devm_kzalloc(ci->dev,
-			sizeof(struct usb_otg), GFP_KERNEL);
-	if (!otg) {
-		dev_err(ci->dev,
-		"Failed to allocate usb_otg structure for ci hdrc otg!\n");
-		return -ENOMEM;
-	}
-
-	otg->usb_phy = ci->usb_phy;
-	otg->gadget = &ci->gadget;
-	ci->fsm.otg = otg;
-	ci->usb_phy->otg = ci->fsm.otg;
+	ci->otg.usb_phy = ci->usb_phy;
+	ci->fsm.otg = &ci->otg;
 	ci->fsm.power_up = 1;
 	ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
 	ci->fsm.otg->state = OTG_STATE_UNDEFINED;
-- 
1.9.1

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