mirror of https://gitee.com/openkylin/linux.git
[media] m88ds3103: use own reg update_bits() implementation
Device stopped to tuning some channels after regmap conversion.
Reason is that regmap_update_bits() works a bit differently for
partially volatile registers than old homemade routine. Return
back to old routine in order to fix issue.
Fixes: 478932b160
Cc: <stable@kernel.org> # 4.2+
Reported-by: Mark Clarkstone <hello@markclarkstone.co.uk>
Tested-by: Mark Clarkstone <hello@markclarkstone.co.uk>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari
Mauro Carvalho Chehab
parent
d18ca5b7ce
commit
56ea37da3b
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@ -18,6 +18,27 @@
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static struct dvb_frontend_ops m88ds3103_ops;
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/* write single register with mask */
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static int m88ds3103_update_bits(struct m88ds3103_dev *dev,
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u8 reg, u8 mask, u8 val)
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{
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int ret;
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u8 tmp;
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/* no need for read if whole reg is written */
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if (mask != 0xff) {
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ret = regmap_bulk_read(dev->regmap, reg, &tmp, 1);
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if (ret)
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return ret;
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val &= mask;
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tmp &= ~mask;
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val |= tmp;
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}
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return regmap_bulk_write(dev->regmap, reg, &val, 1);
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}
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/* write reg val table using reg addr auto increment */
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static int m88ds3103_wr_reg_val_tab(struct m88ds3103_dev *dev,
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const struct m88ds3103_reg_val *tab, int tab_len)
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@ -394,10 +415,10 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
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u8tmp2 = 0x00; /* 0b00 */
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break;
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}
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ret = regmap_update_bits(dev->regmap, 0x22, 0xc0, u8tmp1 << 6);
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ret = m88ds3103_update_bits(dev, 0x22, 0xc0, u8tmp1 << 6);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x24, 0xc0, u8tmp2 << 6);
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ret = m88ds3103_update_bits(dev, 0x24, 0xc0, u8tmp2 << 6);
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if (ret)
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goto err;
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}
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@ -455,13 +476,13 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
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if (ret)
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goto err;
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}
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ret = regmap_update_bits(dev->regmap, 0x9d, 0x08, 0x08);
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ret = m88ds3103_update_bits(dev, 0x9d, 0x08, 0x08);
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if (ret)
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goto err;
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ret = regmap_write(dev->regmap, 0xf1, 0x01);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x30, 0x80, 0x80);
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ret = m88ds3103_update_bits(dev, 0x30, 0x80, 0x80);
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if (ret)
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goto err;
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}
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@ -498,7 +519,7 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
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switch (dev->cfg->ts_mode) {
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case M88DS3103_TS_SERIAL:
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case M88DS3103_TS_SERIAL_D7:
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ret = regmap_update_bits(dev->regmap, 0x29, 0x20, u8tmp1);
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ret = m88ds3103_update_bits(dev, 0x29, 0x20, u8tmp1);
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if (ret)
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goto err;
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u8tmp1 = 0;
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@ -567,11 +588,11 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x4d, 0x02, dev->cfg->spec_inv << 1);
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ret = m88ds3103_update_bits(dev, 0x4d, 0x02, dev->cfg->spec_inv << 1);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x30, 0x10, dev->cfg->agc_inv << 4);
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ret = m88ds3103_update_bits(dev, 0x30, 0x10, dev->cfg->agc_inv << 4);
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if (ret)
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goto err;
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@ -625,13 +646,13 @@ static int m88ds3103_init(struct dvb_frontend *fe)
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dev->warm = false;
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/* wake up device from sleep */
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ret = regmap_update_bits(dev->regmap, 0x08, 0x01, 0x01);
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ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x01);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x04, 0x01, 0x00);
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ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x00);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x23, 0x10, 0x00);
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ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x00);
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if (ret)
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goto err;
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@ -749,18 +770,18 @@ static int m88ds3103_sleep(struct dvb_frontend *fe)
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utmp = 0x29;
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else
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utmp = 0x27;
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ret = regmap_update_bits(dev->regmap, utmp, 0x01, 0x00);
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ret = m88ds3103_update_bits(dev, utmp, 0x01, 0x00);
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if (ret)
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goto err;
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/* sleep */
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ret = regmap_update_bits(dev->regmap, 0x08, 0x01, 0x00);
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ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x04, 0x01, 0x01);
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ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01);
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if (ret)
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goto err;
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ret = regmap_update_bits(dev->regmap, 0x23, 0x10, 0x10);
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ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10);
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if (ret)
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goto err;
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@ -992,12 +1013,12 @@ static int m88ds3103_set_tone(struct dvb_frontend *fe,
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}
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utmp = tone << 7 | dev->cfg->envelope_mode << 5;
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ret = regmap_update_bits(dev->regmap, 0xa2, 0xe0, utmp);
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ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
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if (ret)
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goto err;
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utmp = 1 << 2;
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ret = regmap_update_bits(dev->regmap, 0xa1, reg_a1_mask, utmp);
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ret = m88ds3103_update_bits(dev, 0xa1, reg_a1_mask, utmp);
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if (ret)
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goto err;
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@ -1047,7 +1068,7 @@ static int m88ds3103_set_voltage(struct dvb_frontend *fe,
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voltage_dis ^= dev->cfg->lnb_en_pol;
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utmp = voltage_dis << 1 | voltage_sel << 0;
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ret = regmap_update_bits(dev->regmap, 0xa2, 0x03, utmp);
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ret = m88ds3103_update_bits(dev, 0xa2, 0x03, utmp);
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if (ret)
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goto err;
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@ -1080,7 +1101,7 @@ static int m88ds3103_diseqc_send_master_cmd(struct dvb_frontend *fe,
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}
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utmp = dev->cfg->envelope_mode << 5;
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ret = regmap_update_bits(dev->regmap, 0xa2, 0xe0, utmp);
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ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
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if (ret)
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goto err;
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@ -1115,12 +1136,12 @@ static int m88ds3103_diseqc_send_master_cmd(struct dvb_frontend *fe,
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} else {
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dev_dbg(&client->dev, "diseqc tx timeout\n");
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ret = regmap_update_bits(dev->regmap, 0xa1, 0xc0, 0x40);
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ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40);
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if (ret)
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goto err;
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}
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ret = regmap_update_bits(dev->regmap, 0xa2, 0xc0, 0x80);
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ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80);
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if (ret)
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goto err;
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@ -1152,7 +1173,7 @@ static int m88ds3103_diseqc_send_burst(struct dvb_frontend *fe,
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}
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utmp = dev->cfg->envelope_mode << 5;
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ret = regmap_update_bits(dev->regmap, 0xa2, 0xe0, utmp);
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ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
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if (ret)
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goto err;
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@ -1194,12 +1215,12 @@ static int m88ds3103_diseqc_send_burst(struct dvb_frontend *fe,
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} else {
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dev_dbg(&client->dev, "diseqc tx timeout\n");
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ret = regmap_update_bits(dev->regmap, 0xa1, 0xc0, 0x40);
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ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40);
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if (ret)
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goto err;
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}
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ret = regmap_update_bits(dev->regmap, 0xa2, 0xc0, 0x80);
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ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80);
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if (ret)
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goto err;
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@ -1435,13 +1456,13 @@ static int m88ds3103_probe(struct i2c_client *client,
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goto err_kfree;
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/* sleep */
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ret = regmap_update_bits(dev->regmap, 0x08, 0x01, 0x00);
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ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00);
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if (ret)
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goto err_kfree;
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ret = regmap_update_bits(dev->regmap, 0x04, 0x01, 0x01);
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ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01);
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if (ret)
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goto err_kfree;
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ret = regmap_update_bits(dev->regmap, 0x23, 0x10, 0x10);
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ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10);
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if (ret)
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goto err_kfree;
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