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