add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/misc/tsl2550.c
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@@ -1,22 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  tsl2550.c - Linux kernel modules for ambient light sensor
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  *
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  *  Copyright (C) 2007 Rodolfo Giometti <giometti@linux.it>
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  *  Copyright (C) 2007 Eurotech S.p.A. <info@eurotech.it>
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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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- *  You should have received a copy of the GNU General Public License
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- *  along with this program; if not, write to the Free Software
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- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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  */
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 #include <linux/module.h>
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@@ -161,16 +148,14 @@
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 	u16 c0 = count_lut[ch0];
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 	u16 c1 = count_lut[ch1];
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-	/*
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-	 * Calculate ratio.
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-	 * Note: the "128" is a scaling factor
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-	 */
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-	u8 r = 128;
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-
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 	/* Avoid division by 0 and count 1 cannot be greater than count 0 */
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 	if (c1 <= c0)
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 		if (c0) {
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-			r = c1 * 128 / c0;
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+			/*
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+			 * Calculate ratio.
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+			 * Note: the "128" is a scaling factor
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+			 */
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+			u8 r = c1 * 128 / c0;
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 			/* Calculate LUX */
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 			lux = ((c0 - c1) * ratio_lut[r]) / 256;
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@@ -349,7 +334,7 @@
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 static int tsl2550_probe(struct i2c_client *client,
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 				   const struct i2c_device_id *id)
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 {
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-	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
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+	struct i2c_adapter *adapter = client->adapter;
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 	struct tsl2550_data *data;
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 	int *opmode, err = 0;
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