add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/input/touchscreen/hideep.c
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@@ -1,9 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2012-2017 Hideep, Inc.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2
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- * as published by the Free Software Foudation.
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  */
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 #include <linux/module.h>
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@@ -821,8 +818,7 @@
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 	if (error)
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 		return error;
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-	ts->key_num = device_property_read_u32_array(dev, "linux,keycodes",
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-						     NULL, 0);
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+	ts->key_num = device_property_count_u32(dev, "linux,keycodes");
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 	if (ts->key_num > HIDEEP_KEY_MAX) {
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 		dev_err(dev, "too many keys defined: %d\n",
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 			ts->key_num);