linux-kernel - [PATCHv6 8/8] usb: dwc2: move usb_disabled() call to host driver only

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Date:	Tue, 28 Oct 2014 18:25:49 -0500
From:	<dinguyen@...nsource.altera.com>
To:	<paulz@...opsys.com>, <balbi@...com>
CC:	<dinh.linux@...il.com>, <swarren@...dotorg.org>,
	<b.zolnierkie@...sung.com>, <matthijs@...in.nl>,
	<r.baldyga@...sung.com>, <jg1.han@...sung.com>,
	<sachin.kamat@...aro.org>, <ben-linux@...ff.org>,
	<dianders@...omium.org>, <kever.yang@...k-chips.com>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>
Subject: [PATCHv6 8/8] usb: dwc2: move usb_disabled() call to host driver only

From: Dinh Nguyen <dinguyen@...nsource.altera.com>

Now that platform.c will get built for both Host and Gadget, if we leave the
usb_disabled() call in platform.c, it results in the following build error
when (!USB && USB_GADGET) condition is met.

ERROR: "usb_disabled" [drivers/usb/dwc2/dwc2_platform.ko] undefined!

Since usb_disabled() is mostly used to disable USB host functionality, move
the call the host portion for the DWC2 driver.

Signed-off-by: Dinh Nguyen <dinguyen@...nsource.altera.com>
---
 drivers/usb/dwc2/hcd.c      | 3 +++
 drivers/usb/dwc2/platform.c | 3 ---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index fa49c72..b741997 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -2780,6 +2780,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
 	int i, num_channels;
 	int retval;
 
+	if (usb_disabled())
+		return -ENODEV;
+
 	dev_dbg(hsotg->dev, "DWC OTG HCD INIT\n");
 
 	/* Detect config values from hardware */
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 77c8417..123cf54 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -157,9 +157,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	int retval;
 	int irq;
 
-	if (usb_disabled())
-		return -ENODEV;
-
 	match = of_match_device(dwc2_of_match_table, &dev->dev);
 	if (match && match->data) {
 		params = match->data;
-- 
2.0.3

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