usb: gadget: dummy_hdc: prepare for multiple instances
This patch replaces the single pdev variable by an array. One change:
The device id is no longer -1 (i.e. none) but 0.
This is prepation work for multiple instances of the dummy_hcd + udc
which should help to test gadget framework with multiple UDCs.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 0f7541b..dffcf34 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -2627,9 +2627,9 @@
};
/*-------------------------------------------------------------------------*/
-
-static struct platform_device *the_udc_pdev;
-static struct platform_device *the_hcd_pdev;
+#define MAX_NUM_UDC 1
+static struct platform_device *the_udc_pdev[MAX_NUM_UDC];
+static struct platform_device *the_hcd_pdev[MAX_NUM_UDC];
static int __init init(void)
{
@@ -2641,11 +2641,11 @@
if (!mod_data.is_high_speed && mod_data.is_super_speed)
return -EINVAL;
- the_hcd_pdev = platform_device_alloc(driver_name, -1);
- if (!the_hcd_pdev)
+ the_hcd_pdev[0] = platform_device_alloc(driver_name, 0);
+ if (!the_hcd_pdev[0])
return retval;
- the_udc_pdev = platform_device_alloc(gadget_name, -1);
- if (!the_udc_pdev)
+ the_udc_pdev[0] = platform_device_alloc(gadget_name, 0);
+ if (!the_udc_pdev[0])
goto err_alloc_udc;
retval = platform_driver_register(&dummy_hcd_driver);
@@ -2655,7 +2655,7 @@
if (retval < 0)
goto err_register_udc_driver;
- retval = platform_device_add(the_hcd_pdev);
+ retval = platform_device_add(the_hcd_pdev[0]);
if (retval < 0)
goto err_add_hcd;
if (!the_controller.hs_hcd ||
@@ -2667,10 +2667,10 @@
retval = -EINVAL;
goto err_add_udc;
}
- retval = platform_device_add(the_udc_pdev);
+ retval = platform_device_add(the_udc_pdev[0]);
if (retval < 0)
goto err_add_udc;
- if (!platform_get_drvdata(the_udc_pdev)) {
+ if (!platform_get_drvdata(the_udc_pdev[0])) {
/*
* The udc was added successfully but its probe function failed
* for some reason.
@@ -2681,25 +2681,25 @@
return retval;
err_probe_udc:
- platform_device_del(the_udc_pdev);
+ platform_device_del(the_udc_pdev[0]);
err_add_udc:
- platform_device_del(the_hcd_pdev);
+ platform_device_del(the_hcd_pdev[0]);
err_add_hcd:
platform_driver_unregister(&dummy_udc_driver);
err_register_udc_driver:
platform_driver_unregister(&dummy_hcd_driver);
err_register_hcd_driver:
- platform_device_put(the_udc_pdev);
+ platform_device_put(the_udc_pdev[0]);
err_alloc_udc:
- platform_device_put(the_hcd_pdev);
+ platform_device_put(the_hcd_pdev[0]);
return retval;
}
module_init(init);
static void __exit cleanup(void)
{
- platform_device_unregister(the_udc_pdev);
- platform_device_unregister(the_hcd_pdev);
+ platform_device_unregister(the_udc_pdev[0]);
+ platform_device_unregister(the_hcd_pdev[0]);
platform_driver_unregister(&dummy_udc_driver);
platform_driver_unregister(&dummy_hcd_driver);
}