v4.19.13 snapshot.
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
new file mode 100644
index 0000000..859ddab
--- /dev/null
+++ b/drivers/ide/ide-pnp.c
@@ -0,0 +1,100 @@
+/*
+ * This file provides autodetection for ISA PnP IDE interfaces.
+ * It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface.
+ *
+ * Copyright (C) 2000 Andrey Panin <pazke@donpac.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * (for example /usr/src/linux/COPYING); if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/pnp.h>
+#include <linux/ide.h>
+#include <linux/module.h>
+
+#define DRV_NAME "ide-pnp"
+
+/* Add your devices here :)) */
+static const struct pnp_device_id idepnp_devices[] = {
+ /* Generic ESDI/IDE/ATA compatible hard disk controller */
+ {.id = "PNP0600", .driver_data = 0},
+ {.id = ""}
+};
+
+static const struct ide_port_info ide_pnp_port_info = {
+ .host_flags = IDE_HFLAG_NO_DMA,
+ .chipset = ide_generic,
+};
+
+static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
+{
+ struct ide_host *host;
+ unsigned long base, ctl;
+ int rc;
+ struct ide_hw hw, *hws[] = { &hw };
+
+ printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n");
+
+ if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
+ return -1;
+
+ base = pnp_port_start(dev, 0);
+ ctl = pnp_port_start(dev, 1);
+
+ if (!request_region(base, 8, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+ DRV_NAME, base, base + 7);
+ return -EBUSY;
+ }
+
+ if (!request_region(ctl, 1, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+ DRV_NAME, ctl);
+ release_region(base, 8);
+ return -EBUSY;
+ }
+
+ memset(&hw, 0, sizeof(hw));
+ ide_std_init_ports(&hw, base, ctl);
+ hw.irq = pnp_irq(dev, 0);
+
+ rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host);
+ if (rc)
+ goto out;
+
+ pnp_set_drvdata(dev, host);
+
+ return 0;
+out:
+ release_region(ctl, 1);
+ release_region(base, 8);
+
+ return rc;
+}
+
+static void idepnp_remove(struct pnp_dev *dev)
+{
+ struct ide_host *host = pnp_get_drvdata(dev);
+
+ ide_host_remove(host);
+
+ release_region(pnp_port_start(dev, 1), 1);
+ release_region(pnp_port_start(dev, 0), 8);
+}
+
+static struct pnp_driver idepnp_driver = {
+ .name = "ide",
+ .id_table = idepnp_devices,
+ .probe = idepnp_probe,
+ .remove = idepnp_remove,
+};
+
+module_pnp_driver(idepnp_driver);
+MODULE_LICENSE("GPL");