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- // 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-mgr.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 = devm_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 eprobe_mgr_put;
- dev_dbg(dev, "DFL FME FPGA Region probed\n");
- return 0;
- eprobe_mgr_put:
- fpga_mgr_put(mgr);
- return ret;
- }
- static int fme_region_remove(struct platform_device *pdev)
- {
- struct fpga_region *region = platform_get_drvdata(pdev);
- struct fpga_manager *mgr = region->mgr;
- fpga_region_unregister(region);
- fpga_mgr_put(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");
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