commit 117777b2c3bb961ba1cb9943dee93f192d7a3abd
author Dinh Nguyen <dinguyen@opensource.altera.com> Tue Nov 11 11:13:34 2014 -0600
committer Felipe Balbi <balbi@ti.com> Fri Nov 14 14:59:32 2014 -0600
tree 7c87938883fe0b6352784fe251cf27af729438fd
parent 941fcce4ff6701c5a7d673d0abb063a7de1234bf

usb: dwc2: Move gadget probe function into platform code

This patch will aggregate the probing of gadget/hcd driver into platform.c.
The gadget probe funtion is converted into gadget_init that is now only
responsible for gadget only initialization. All the gadget resources are now
handled by platform.c

Since the host workqueue will not get initialized if the driver is configured
for peripheral mode only. Thus we need to check for wq_otg before calling
queue_work().

Also, we move spin_lock_init to common location for both host and gadget that
is either in platform.c or pci.c.

We also move suspend/resume code to common platform code.

Lastly, move the "samsung,s3c6400-hsotg" binding into dwc2_of_match_table.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc2/platform.c

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 121dbda..eeba8a4 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -121,6 +121,7 @@
 	struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
 
 	dwc2_hcd_remove(hsotg);
+	s3c_hsotg_remove(hsotg);
 
 	return 0;
 }
@@ -129,6 +130,7 @@
 	{ .compatible = "brcm,bcm2835-usb", .data = &params_bcm2835 },
 	{ .compatible = "rockchip,rk3066-usb", .data = &params_rk3066 },
 	{ .compatible = "snps,dwc2", .data = NULL },
+	{ .compatible = "samsung,s3c6400-hsotg", .data = NULL},
 	{},
 };
 MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
@@ -204,6 +206,10 @@
 
 	hsotg->dr_mode = of_usb_get_dr_mode(dev->dev.of_node);
 
+	spin_lock_init(&hsotg->lock);
+	retval = dwc2_gadget_init(hsotg, irq);
+	if (retval)
+		return retval;
 	retval = dwc2_hcd_init(hsotg, irq, params);
 	if (retval)
 		return retval;
@@ -213,6 +219,26 @@
 	return retval;
 }
 
+static int dwc2_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct dwc2_hsotg *dwc2 = platform_get_drvdata(dev);
+	int ret = 0;
+
+	if (dwc2_is_device_mode(dwc2))
+		ret = s3c_hsotg_suspend(dwc2);
+	return ret;
+}
+
+static int dwc2_resume(struct platform_device *dev)
+{
+	struct dwc2_hsotg *dwc2 = platform_get_drvdata(dev);
+	int ret = 0;
+
+	if (dwc2_is_device_mode(dwc2))
+		ret = s3c_hsotg_resume(dwc2);
+	return ret;
+}
+
 static struct platform_driver dwc2_platform_driver = {
 	.driver = {
 		.name = dwc2_driver_name,
@@ -220,6 +246,8 @@
 	},
 	.probe = dwc2_driver_probe,
 	.remove = dwc2_driver_remove,
+	.suspend = dwc2_suspend,
+	.resume = dwc2_resume,
 };
 
 module_platform_driver(dwc2_platform_driver);