diff options
Diffstat (limited to 'drivers/media/tuners/qt1010.c')
| -rw-r--r-- | drivers/media/tuners/qt1010.c | 68 |
1 files changed, 31 insertions, 37 deletions
diff --git a/drivers/media/tuners/qt1010.c b/drivers/media/tuners/qt1010.c index bc419f8a9671..48fc79cd4027 100644 --- a/drivers/media/tuners/qt1010.c +++ b/drivers/media/tuners/qt1010.c @@ -1,22 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Quantek QT1010 silicon tuner * * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> * Aapo Tahkola <aet@rasterburn.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "qt1010.h" #include "qt1010_priv.h" @@ -235,23 +222,24 @@ static int qt1010_init_meas1(struct qt1010_priv *priv, { QT1010_WR, reg, reg_init_val }, { QT1010_WR, 0x1e, 0x00 }, { QT1010_WR, 0x1e, oper }, - { QT1010_RD, reg, 0xff } }; for (i = 0; i < ARRAY_SIZE(i2c_data); i++) { - if (i2c_data[i].oper == QT1010_WR) { - err = qt1010_writereg(priv, i2c_data[i].reg, - i2c_data[i].val); - } else { - err = qt1010_readreg(priv, i2c_data[i].reg, &val2); - } - if (err) return err; + err = qt1010_writereg(priv, i2c_data[i].reg, + i2c_data[i].val); + if (err) + return err; } + err = qt1010_readreg(priv, reg, &val2); + if (err) + return err; do { val1 = val2; err = qt1010_readreg(priv, reg, &val2); - if (err) return err; + if (err) + return err; + dev_dbg(&priv->i2c->dev, "%s: compare reg:%02x %02x %02x\n", __func__, reg, val1, val2); } while (val1 != val2); @@ -263,7 +251,7 @@ static int qt1010_init_meas1(struct qt1010_priv *priv, static int qt1010_init_meas2(struct qt1010_priv *priv, u8 reg_init_val, u8 *retval) { - u8 i, val; + u8 i, val = 0xff; int err; qt1010_i2c_oper_t i2c_data[] = { { QT1010_WR, 0x07, reg_init_val }, @@ -274,6 +262,7 @@ static int qt1010_init_meas2(struct qt1010_priv *priv, { QT1010_WR, 0x1e, 0x00 }, { QT1010_WR, 0x22, 0xff } }; + for (i = 0; i < ARRAY_SIZE(i2c_data); i++) { if (i2c_data[i].oper == QT1010_WR) { err = qt1010_writereg(priv, i2c_data[i].reg, @@ -281,7 +270,8 @@ static int qt1010_init_meas2(struct qt1010_priv *priv, } else { err = qt1010_readreg(priv, i2c_data[i].reg, &val); } - if (err) return err; + if (err) + return err; } *retval = val; return 0; @@ -294,7 +284,7 @@ static int qt1010_init(struct dvb_frontend *fe) int err = 0; u8 i, tmpval, *valptr = NULL; - qt1010_i2c_oper_t i2c_data[] = { + static const qt1010_i2c_oper_t i2c_data[] = { { QT1010_WR, 0x01, 0x80 }, { QT1010_WR, 0x0d, 0x84 }, { QT1010_WR, 0x0e, 0xb7 }, @@ -354,13 +344,18 @@ static int qt1010_init(struct dvb_frontend *fe) valptr = &priv->reg1f_init_val; else valptr = &tmpval; - err = qt1010_init_meas1(priv, i2c_data[i+1].reg, - i2c_data[i].reg, - i2c_data[i].val, valptr); + + if (i >= ARRAY_SIZE(i2c_data) - 1) + err = -EIO; + else + err = qt1010_init_meas1(priv, i2c_data[i + 1].reg, + i2c_data[i].reg, + i2c_data[i].val, valptr); i++; break; } - if (err) return err; + if (err) + return err; } for (i = 0x31; i < 0x3a; i++) /* 0x31 - 0x39 */ @@ -373,11 +368,10 @@ static int qt1010_init(struct dvb_frontend *fe) return qt1010_set_params(fe); } -static int qt1010_release(struct dvb_frontend *fe) +static void qt1010_release(struct dvb_frontend *fe) { kfree(fe->tuner_priv); fe->tuner_priv = NULL; - return 0; } static int qt1010_get_frequency(struct dvb_frontend *fe, u32 *frequency) @@ -395,10 +389,10 @@ static int qt1010_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) static const struct dvb_tuner_ops qt1010_tuner_ops = { .info = { - .name = "Quantek QT1010", - .frequency_min = QT1010_MIN_FREQ, - .frequency_max = QT1010_MAX_FREQ, - .frequency_step = QT1010_STEP, + .name = "Quantek QT1010", + .frequency_min_hz = QT1010_MIN_FREQ, + .frequency_max_hz = QT1010_MAX_FREQ, + .frequency_step_hz = QT1010_STEP, }, .release = qt1010_release, @@ -447,7 +441,7 @@ struct dvb_frontend * qt1010_attach(struct dvb_frontend *fe, fe->tuner_priv = priv; return fe; } -EXPORT_SYMBOL(qt1010_attach); +EXPORT_SYMBOL_GPL(qt1010_attach); MODULE_DESCRIPTION("Quantek QT1010 silicon tuner driver"); MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); |