1 // SPDX-License-Identifier: GPL-2.0
3  * FPGA Bridge Driver for FPGA Management Engine (FME)
5  * Copyright (C) 2017-2018 Intel Corporation, Inc.
17 #include <linux/fpga/fpga-bridge.h>
20 #include "dfl-fme-pr.h"
28 static int fme_bridge_enable_set(struct fpga_bridge *bridge, bool enable)  in fme_bridge_enable_set()  argument
30 	struct fme_br_priv *priv = bridge->priv;  in fme_bridge_enable_set()
34 	if (!priv->port_fdata) {  in fme_bridge_enable_set()
35 		port_fdata = dfl_fpga_cdev_find_port_data(priv->pdata->cdev,  in fme_bridge_enable_set()
36 							  &priv->pdata->port_id,  in fme_bridge_enable_set()
39 			return -ENODEV;  in fme_bridge_enable_set()
41 		priv->port_fdata = port_fdata;  in fme_bridge_enable_set()
44 	if (priv->port_fdata && !priv->port_ops) {  in fme_bridge_enable_set()
45 		ops = dfl_fpga_port_ops_get(priv->port_fdata);  in fme_bridge_enable_set()
46 		if (!ops || !ops->enable_set)  in fme_bridge_enable_set()
47 			return -ENOENT;  in fme_bridge_enable_set()
49 		priv->port_ops = ops;  in fme_bridge_enable_set()
52 	return priv->port_ops->enable_set(priv->port_fdata, enable);  in fme_bridge_enable_set()
61 	struct device *dev = &pdev->dev;  in fme_br_probe()
67 		return -ENOMEM;  in fme_br_probe()
69 	priv->pdata = dev_get_platdata(dev);  in fme_br_probe()
71 	br = fpga_bridge_register(dev, "DFL FPGA FME Bridge",  in fme_br_probe()
84 	struct fme_br_priv *priv = br->priv;  in fme_br_remove()
88 	if (priv->port_ops)  in fme_br_remove()
89 		dfl_fpga_port_ops_put(priv->port_ops);  in fme_br_remove()
102 MODULE_DESCRIPTION("FPGA Bridge for DFL FPGA Management Engine");
105 MODULE_ALIAS("platform:dfl-fme-bridge");