mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 13:18:46 +07:00
dd37eed7db
Driver bind to devices based on the engine types & (optional) versions. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Chris Bostic <cbostic@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
|
|
* FSI core driver
|
|
*
|
|
* Copyright (C) IBM Corporation 2016
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/fsi.h>
|
|
#include <linux/module.h>
|
|
|
|
/* FSI core & Linux bus type definitions */
|
|
|
|
static int fsi_bus_match(struct device *dev, struct device_driver *drv)
|
|
{
|
|
struct fsi_device *fsi_dev = to_fsi_dev(dev);
|
|
struct fsi_driver *fsi_drv = to_fsi_drv(drv);
|
|
const struct fsi_device_id *id;
|
|
|
|
if (!fsi_drv->id_table)
|
|
return 0;
|
|
|
|
for (id = fsi_drv->id_table; id->engine_type; id++) {
|
|
if (id->engine_type != fsi_dev->engine_type)
|
|
continue;
|
|
if (id->version == FSI_VERSION_ANY ||
|
|
id->version == fsi_dev->version)
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct bus_type fsi_bus_type = {
|
|
.name = "fsi",
|
|
.match = fsi_bus_match,
|
|
};
|
|
EXPORT_SYMBOL_GPL(fsi_bus_type);
|
|
|
|
static int fsi_init(void)
|
|
{
|
|
return bus_register(&fsi_bus_type);
|
|
}
|
|
|
|
static void fsi_exit(void)
|
|
{
|
|
bus_unregister(&fsi_bus_type);
|
|
}
|
|
|
|
module_init(fsi_init);
|
|
module_exit(fsi_exit);
|