add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/media/tuners/qt1010.c
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@@ -1,18 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  Driver for Quantek QT1010 silicon tuner
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  *
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  *  Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
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  *                     Aapo Tahkola <aet@rasterburn.org>
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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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 #include "qt1010.h"
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 #include "qt1010_priv.h"
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@@ -224,30 +215,31 @@
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 static int qt1010_init_meas1(struct qt1010_priv *priv,
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 			     u8 oper, u8 reg, u8 reg_init_val, u8 *retval)
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 {
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-	u8 i, val1, uninitialized_var(val2);
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+	u8 i, val1, val2;
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 	int err;
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220
 
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 	qt1010_i2c_oper_t i2c_data[] = {
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 		{ QT1010_WR, reg, reg_init_val },
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 		{ QT1010_WR, 0x1e, 0x00 },
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 		{ QT1010_WR, 0x1e, oper },
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-		{ QT1010_RD, reg, 0xff }
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 	};
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 	for (i = 0; i < ARRAY_SIZE(i2c_data); i++) {
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-		if (i2c_data[i].oper == QT1010_WR) {
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-			err = qt1010_writereg(priv, i2c_data[i].reg,
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-					      i2c_data[i].val);
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-		} else {
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-			err = qt1010_readreg(priv, i2c_data[i].reg, &val2);
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-		}
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-		if (err) return err;
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+		err = qt1010_writereg(priv, i2c_data[i].reg,
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+				      i2c_data[i].val);
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+		if (err)
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+			return err;
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 	}
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+	err = qt1010_readreg(priv, reg, &val2);
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+	if (err)
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+		return err;
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 	do {
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 		val1 = val2;
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 		err = qt1010_readreg(priv, reg, &val2);
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-		if (err) return err;
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+		if (err)
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+			return err;
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+
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 		dev_dbg(&priv->i2c->dev, "%s: compare reg:%02x %02x %02x\n",
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 				__func__, reg, val1, val2);
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 	} while (val1 != val2);
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@@ -259,7 +251,7 @@
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 static int qt1010_init_meas2(struct qt1010_priv *priv,
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 			    u8 reg_init_val, u8 *retval)
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 {
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-	u8 i, uninitialized_var(val);
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+	u8 i, val = 0xff;
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 	int err;
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 	qt1010_i2c_oper_t i2c_data[] = {
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 		{ QT1010_WR, 0x07, reg_init_val },
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@@ -270,6 +262,7 @@
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 		{ QT1010_WR, 0x1e, 0x00 },
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 		{ QT1010_WR, 0x22, 0xff }
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 	};
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+
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 	for (i = 0; i < ARRAY_SIZE(i2c_data); i++) {
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 		if (i2c_data[i].oper == QT1010_WR) {
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 			err = qt1010_writereg(priv, i2c_data[i].reg,
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@@ -277,7 +270,8 @@
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 		} else {
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 			err = qt1010_readreg(priv, i2c_data[i].reg, &val);
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 		}
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-		if (err) return err;
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+		if (err)
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+			return err;
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 	}
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 	*retval = val;
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 	return 0;
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@@ -351,11 +345,12 @@
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 			else
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 				valptr = &tmpval;
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-			BUG_ON(i >= ARRAY_SIZE(i2c_data) - 1);
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-
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-			err = qt1010_init_meas1(priv, i2c_data[i+1].reg,
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-						i2c_data[i].reg,
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-						i2c_data[i].val, valptr);
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+			if (i >= ARRAY_SIZE(i2c_data) - 1)
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+				err = -EIO;
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+			else
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+				err = qt1010_init_meas1(priv, i2c_data[i + 1].reg,
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+							i2c_data[i].reg,
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+							i2c_data[i].val, valptr);
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 			i++;
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 			break;
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 		}
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@@ -446,7 +441,7 @@
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 	fe->tuner_priv = priv;
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 	return fe;
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 }
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-EXPORT_SYMBOL(qt1010_attach);
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+EXPORT_SYMBOL_GPL(qt1010_attach);
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 MODULE_DESCRIPTION("Quantek QT1010 silicon tuner driver");
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 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");