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usb: dwc2: Move gadget probe function into platform code

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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>
This commit is contained in:
Dinh Nguyen
2014-11-11 11:13:34 -06:00
committed by Felipe Balbi
parent 941fcce4ff
commit 117777b2c3
7 changed files with 88 additions and 92 deletions
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28
drivers/usb/dwc2/platform.c
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@@ -121,6 +121,7 @@ static int dwc2_driver_remove(struct platform_device *dev)
struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
dwc2_hcd_remove(hsotg);
s3c_hsotg_remove(hsotg);
return 0;
}
@@ -129,6 +130,7 @@ static const struct of_device_id dwc2_of_match_table[] = {
{ .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 @@ static int dwc2_driver_probe(struct platform_device *dev)
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 @@ static int dwc2_driver_probe(struct platform_device *dev)
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 @@ static struct platform_driver dwc2_platform_driver = {
},
.probe = dwc2_driver_probe,
.remove = dwc2_driver_remove,
.suspend = dwc2_suspend,
.resume = dwc2_resume,
};
module_platform_driver(dwc2_platform_driver);