diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2023-12-05 15:25:17 -0600 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-12-15 17:52:53 +0800 |
| commit | 15a611015224c6698801ab9a2c2321742c39174e (patch) | |
| tree | 7224c9f4c26bd83f191b85345c6de64482434e1a /drivers/dma | |
| parent | 8517c34e87025b3f74f3c07813d493828f369598 (diff) | |
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: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idxd/bus.c | 6 | ||||
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/dma/idxd/bus.c b/drivers/dma/idxd/bus.c index 6f84621053c6..0c9e689a2e77 100644 --- a/drivers/dma/idxd/bus.c +++ b/drivers/dma/idxd/bus.c @@ -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); diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 1e89c80a07fc..e541d19f14d0 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -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) \ |