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Commit 0d5e8252 authored by Kevin Hilman's avatar Kevin Hilman
Browse files

OMAP: omap_device: make all devices a child of a new parent device 



In order to help differentiate omap_devices from normal
platform_devices, make them all a parent of a new common parent
device.

Then, in order to determine if a platform_device is also an
omap_device, checking the parent is all that is needed.

Users of this feature are the runtime PM core for OMAP, where we need
to know if a device being passed in is an omap_device or not in order
to know whether to call the omap_device API with it.

In addition, all omap_devices will now show up under /sys/devices/omap
instead of /sys/devices/platform

Acked-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent a1ed40cb

arch/arm/plat-omap/include/plat/omap_device.h

+2 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ 


#include <plat/omap_hwmod.h>



extern struct device omap_device_parent;



/* omap_device._state values */

#define OMAP_DEVICE_STATE_UNKNOWN	0

#define OMAP_DEVICE_STATE_ENABLED	1

arch/arm/plat-omap/omap_device.c

+12 −0
Original line number Diff line number Diff line
@@ -465,6 +465,7 @@ int omap_device_register(struct omap_device *od) 
{

	pr_debug("omap_device: %s: registering\n", od->pdev.name);



	od->pdev.dev.parent = &omap_device_parent;

	return platform_device_register(&od->pdev);

}
@@ -737,3 +738,14 @@ int omap_device_enable_clocks(struct omap_device *od) 
	/* XXX pass along return value here? */

	return 0;

}



struct device omap_device_parent = {

	.init_name	= "omap",

	.parent         = &platform_bus,

};



static int __init omap_device_init(void)

{

	return device_register(&omap_device_parent);

}

core_initcall(omap_device_init);