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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2015, Christoph Hellwig.
* Copyright (c) 2015, Intel Corporation.
*/
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/ioport.h>
static int found(struct resource *res, void *data)
{
return 1;
}
static __init int register_e820_pmem(void)
{
struct platform_device *pdev;
int rc;
rc = walk_iomem_res_desc(IORES_DESC_PERSISTENT_MEMORY_LEGACY,
IORESOURCE_MEM, 0, -1, NULL, found);
if (rc <= 0)
return 0;
/*
* See drivers/nvdimm/e820.c for the implementation, this is
* simply here to trigger the module to load on demand.
*/
pdev = platform_device_alloc("e820_pmem", -1);
rc = platform_device_add(pdev);
if (rc)
platform_device_put(pdev);
return rc;
}
device_initcall(register_e820_pmem);
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