90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* FPGA Region Driver for FPGA Management Engine (FME)
|
|
*
|
|
* Copyright (C) 2017-2018 Intel Corporation, Inc.
|
|
*
|
|
* Authors:
|
|
* Wu Hao <hao.wu@intel.com>
|
|
* Joseph Grecco <joe.grecco@intel.com>
|
|
* Enno Luebbers <enno.luebbers@intel.com>
|
|
* Tim Whisonant <tim.whisonant@intel.com>
|
|
* Ananda Ravuri <ananda.ravuri@intel.com>
|
|
* Henry Mitchel <henry.mitchel@intel.com>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/fpga/fpga-region.h>
|
|
|
|
#include "dfl-fme-pr.h"
|
|
|
|
static int fme_region_get_bridges(struct fpga_region *region)
|
|
{
|
|
struct dfl_fme_region_pdata *pdata = region->priv;
|
|
struct device *dev = &pdata->br->dev;
|
|
|
|
return fpga_bridge_get_to_list(dev, region->info, ®ion->bridge_list);
|
|
}
|
|
|
|
static int fme_region_probe(struct platform_device *pdev)
|
|
{
|
|
struct dfl_fme_region_pdata *pdata = dev_get_platdata(&pdev->dev);
|
|
struct device *dev = &pdev->dev;
|
|
struct fpga_region *region;
|
|
struct fpga_manager *mgr;
|
|
int ret;
|
|
|
|
mgr = fpga_mgr_get(&pdata->mgr->dev);
|
|
if (IS_ERR(mgr))
|
|
return -EPROBE_DEFER;
|
|
|
|
region = fpga_region_create(dev, mgr, fme_region_get_bridges);
|
|
if (!region) {
|
|
ret = -ENOMEM;
|
|
goto eprobe_mgr_put;
|
|
}
|
|
|
|
region->priv = pdata;
|
|
region->compat_id = mgr->compat_id;
|
|
platform_set_drvdata(pdev, region);
|
|
|
|
ret = fpga_region_register(region);
|
|
if (ret)
|
|
goto region_free;
|
|
|
|
dev_dbg(dev, "DFL FME FPGA Region probed\n");
|
|
|
|
return 0;
|
|
|
|
region_free:
|
|
fpga_region_free(region);
|
|
eprobe_mgr_put:
|
|
fpga_mgr_put(mgr);
|
|
return ret;
|
|
}
|
|
|
|
static int fme_region_remove(struct platform_device *pdev)
|
|
{
|
|
struct fpga_region *region = dev_get_drvdata(&pdev->dev);
|
|
|
|
fpga_region_unregister(region);
|
|
fpga_mgr_put(region->mgr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver fme_region_driver = {
|
|
.driver = {
|
|
.name = DFL_FPGA_FME_REGION,
|
|
},
|
|
.probe = fme_region_probe,
|
|
.remove = fme_region_remove,
|
|
};
|
|
|
|
module_platform_driver(fme_region_driver);
|
|
|
|
MODULE_DESCRIPTION("FPGA Region for DFL FPGA Management Engine");
|
|
MODULE_AUTHOR("Intel Corporation");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS("platform:dfl-fme-region");
|