linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * FPGA Manager Core

 *

 *  Copyright (C) 2013-2015 Altera Corporation

 *  Copyright (C) 2017 Intel Corporation

 *

 * With code from the mailing list:

 * Copyright (C) 2013 Xilinx, Inc.

 */

#include <linux/firmware.h>

#include <linux/fpga/fpga-mgr.h>

#include <linux/idr.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/mutex.h>

#include <linux/slab.h>

#include <linux/scatterlist.h>

#include <linux/highmem.h>

​

static DEFINE_IDA(fpga_mgr_ida);

static struct class *fpga_mgr_class;

​

/**

 * fpga_image_info_alloc - Allocate a FPGA image info struct

 * @dev: owning device

 *

 * Return: struct fpga_image_info or NULL

 */

struct fpga_image_info *fpga_image_info_alloc(struct device *dev)

{

    struct fpga_image_info *info;

​

    get_device(dev);

​

    info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);

    if (!info) {

        put_device(dev);

        return NULL;

    }

​

    info->dev = dev;

​

    return info;

}

EXPORT_SYMBOL_GPL(fpga_image_info_alloc);

​

/**

 * fpga_image_info_free - Free a FPGA image info struct

 * @info: FPGA image info struct to free

 */

void fpga_image_info_free(struct fpga_image_info *info)

{

    struct device *dev;

​

    if (!info)

        return;

​

    dev = info->dev;

    if (info->firmware_name)

        devm_kfree(dev, info->firmware_name);

​

    devm_kfree(dev, info);