add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/ata/pata_of_platform.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * OF-platform PATA driver
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  *
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  * Copyright (c) 2007  MontaVista Software, Inc.
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  *                     Anton Vorontsov <avorontsov@ru.mvista.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License (Version 2) as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/kernel.h>
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@@ -32,6 +29,7 @@
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 	unsigned int reg_shift = 0;
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 	int pio_mode = 0;
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 	int pio_mask;
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+	bool use16bit;
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 	ret = of_address_to_resource(dn, 0, &io_res);
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 	if (ret) {
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@@ -60,11 +58,14 @@
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 		dev_info(&ofdev->dev, "pio-mode unspecified, assuming PIO0\n");
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 	}
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+	use16bit = of_property_read_bool(dn, "ata-generic,use16bit");
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+
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 	pio_mask = 1 << pio_mode;
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 	pio_mask |= (1 << pio_mode) - 1;
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 	return __pata_platform_probe(&ofdev->dev, &io_res, &ctl_res, irq_res,
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-				     reg_shift, pio_mask, &pata_platform_sht);
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+				     reg_shift, pio_mask, &pata_platform_sht,
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+				     use16bit);
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 }
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 static const struct of_device_id pata_of_platform_match[] = {