Commit 15a61101 authored by Dave Jiang's avatar Dave Jiang Committed by Herbert Xu
Browse files

dmaengine: idxd: add external module driver support for dsa_bus_type 



Add support to allow an external driver to be registered to the
dsa_bus_type and also auto-loaded.

Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
Signed-off-by: default avatarTom Zanussi <tom.zanussi@linux.intel.com>
Reviewed-by: default avatarFenghua Yu <fenghua.yu@intel.com>
Acked-by: default avatarVinod Koul <vkoul@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 8517c34e

drivers/dma/idxd/bus.c

+6 −0
Original line number Diff line number Diff line
@@ -67,11 +67,17 @@ static void idxd_config_bus_remove(struct device *dev) 
	idxd_drv->remove(idxd_dev);

}



static int idxd_bus_uevent(const struct device *dev, struct kobj_uevent_env *env)

{

	return add_uevent_var(env, "MODALIAS=" IDXD_DEVICES_MODALIAS_FMT, 0);

}



struct bus_type dsa_bus_type = {

	.name = "dsa",

	.match = idxd_config_bus_match,

	.probe = idxd_config_bus_probe,

	.remove = idxd_config_bus_remove,

	.uevent = idxd_bus_uevent,

};

EXPORT_SYMBOL_GPL(dsa_bus_type);

drivers/dma/idxd/idxd.h

+3 −0
Original line number Diff line number Diff line
@@ -655,6 +655,9 @@ static inline int idxd_wq_driver_name_match(struct idxd_wq *wq, struct device *d 
	return (strncmp(wq->driver_name, dev->driver->name, strlen(dev->driver->name)) == 0);

}



#define MODULE_ALIAS_IDXD_DEVICE(type) MODULE_ALIAS("idxd:t" __stringify(type) "*")

#define IDXD_DEVICES_MODALIAS_FMT "idxd:t%d"



int __must_check __idxd_driver_register(struct idxd_device_driver *idxd_drv,

					struct module *module, const char *mod_name);

#define idxd_driver_register(driver) \