add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/i2c/algos/i2c-algo-pcf.c
..
..
@@ -1,18 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * i2c-algo-pcf.c i2c driver algorithms for PCF8584 adapters
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  *
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  *   Copyright (C) 1995-1997 Simon G. Vogl
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  *		   1998-2000 Hans Berglund
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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 as published by
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- *  the Free Software Foundation; either version 2 of the License, or
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- *  (at your option) any later version.
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- *
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- *  This program is distributed in the hope that it will be useful,
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- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- *  GNU General Public License for more details.
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  *
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  * With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
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  * Frodo Looijaard <frodol@dds.nl>, and also from Martin Bailey