Commit b2113136 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Felipe Balbi
Browse files

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: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 1616e99d

drivers/usb/gadget/dummy_hcd.c

+16 −16
Original line number Diff line number Diff line
@@ -2627,9 +2627,9 @@ static struct platform_driver dummy_hcd_driver = { 
};



/*-------------------------------------------------------------------------*/



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 @@ static int __init init(void) 
	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 @@ static int __init init(void) 
	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 @@ static int __init init(void) 
		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 @@ static int __init init(void) 
	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);

}

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