forked from Minki/linux
[media] m88ts2022: convert to RegMap I2C API
Use RegMap to cover I2C register routines. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari
Mauro Carvalho Chehab
parent
b8d67ab656
commit
35c77a8546
@ -226,6 +226,7 @@ config MEDIA_TUNER_FC2580
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config MEDIA_TUNER_M88TS2022
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tristate "Montage M88TS2022 silicon tuner"
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depends on MEDIA_SUPPORT && I2C
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select REGMAP_I2C
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default m if !MEDIA_SUBDRV_AUTOSELECT
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help
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Montage M88TS2022 silicon tuner driver.
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@ -18,120 +18,12 @@
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#include "m88ts2022_priv.h"
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/* write multiple registers */
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static int m88ts2022_wr_regs(struct m88ts2022_dev *dev,
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u8 reg, const u8 *val, int len)
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{
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#define MAX_WR_LEN 3
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#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1)
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int ret;
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u8 buf[MAX_WR_XFER_LEN];
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struct i2c_msg msg[1] = {
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{
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.addr = dev->client->addr,
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.flags = 0,
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.len = 1 + len,
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.buf = buf,
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}
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};
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if (WARN_ON(len > MAX_WR_LEN))
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return -EINVAL;
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buf[0] = reg;
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memcpy(&buf[1], val, len);
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ret = i2c_transfer(dev->client->adapter, msg, 1);
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if (ret == 1) {
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ret = 0;
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} else {
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dev_warn(&dev->client->dev,
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"i2c wr failed=%d reg=%02x len=%d\n",
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ret, reg, len);
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ret = -EREMOTEIO;
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}
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return ret;
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}
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/* read multiple registers */
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static int m88ts2022_rd_regs(struct m88ts2022_dev *dev, u8 reg,
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u8 *val, int len)
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{
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#define MAX_RD_LEN 1
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#define MAX_RD_XFER_LEN (MAX_RD_LEN)
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int ret;
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u8 buf[MAX_RD_XFER_LEN];
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struct i2c_msg msg[2] = {
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{
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.addr = dev->client->addr,
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.flags = 0,
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.len = 1,
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.buf = ®,
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}, {
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.addr = dev->client->addr,
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.flags = I2C_M_RD,
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.len = len,
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.buf = buf,
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}
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};
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if (WARN_ON(len > MAX_RD_LEN))
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return -EINVAL;
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ret = i2c_transfer(dev->client->adapter, msg, 2);
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if (ret == 2) {
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memcpy(val, buf, len);
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ret = 0;
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} else {
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dev_warn(&dev->client->dev,
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"i2c rd failed=%d reg=%02x len=%d\n",
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ret, reg, len);
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ret = -EREMOTEIO;
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}
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return ret;
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}
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/* write single register */
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static int m88ts2022_wr_reg(struct m88ts2022_dev *dev, u8 reg, u8 val)
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{
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return m88ts2022_wr_regs(dev, reg, &val, 1);
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}
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/* read single register */
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static int m88ts2022_rd_reg(struct m88ts2022_dev *dev, u8 reg, u8 *val)
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{
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return m88ts2022_rd_regs(dev, reg, val, 1);
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}
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/* write single register with mask */
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static int m88ts2022_wr_reg_mask(struct m88ts2022_dev *dev,
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u8 reg, u8 val, u8 mask)
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{
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int ret;
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u8 u8tmp;
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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 = m88ts2022_rd_regs(dev, reg, &u8tmp, 1);
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if (ret)
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return ret;
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val &= mask;
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u8tmp &= ~mask;
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val |= u8tmp;
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}
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return m88ts2022_wr_regs(dev, reg, &val, 1);
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}
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static int m88ts2022_cmd(struct dvb_frontend *fe,
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int op, int sleep, u8 reg, u8 mask, u8 val, u8 *reg_val)
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{
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struct m88ts2022_dev *dev = fe->tuner_priv;
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int ret, i;
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u8 u8tmp;
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unsigned int utmp;
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struct m88ts2022_reg_val reg_vals[] = {
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{0x51, 0x1f - op},
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{0x51, 0x1f},
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@ -145,7 +37,7 @@ static int m88ts2022_cmd(struct dvb_frontend *fe,
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i, op, reg, mask, val);
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for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
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ret = m88ts2022_wr_reg(dev, reg_vals[i].reg,
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ret = regmap_write(dev->regmap, reg_vals[i].reg,
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reg_vals[i].val);
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if (ret)
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goto err;
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@ -153,16 +45,16 @@ static int m88ts2022_cmd(struct dvb_frontend *fe,
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usleep_range(sleep * 1000, sleep * 10000);
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ret = m88ts2022_rd_reg(dev, reg, &u8tmp);
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ret = regmap_read(dev->regmap, reg, &utmp);
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if (ret)
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goto err;
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if ((u8tmp & mask) != val)
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if ((utmp & mask) != val)
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break;
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}
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if (reg_val)
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*reg_val = u8tmp;
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*reg_val = utmp;
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err:
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return ret;
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}
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@ -172,7 +64,7 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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struct m88ts2022_dev *dev = fe->tuner_priv;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret;
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unsigned int frequency_khz, frequency_offset_khz, f_3db_hz;
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unsigned int utmp, frequency_khz, frequency_offset_khz, f_3db_hz;
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unsigned int f_ref_khz, f_vco_khz, div_ref, div_out, pll_n, gdiv28;
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u8 buf[3], u8tmp, cap_code, lpf_gm, lpf_mxdiv, div_max, div_min;
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u16 u16tmp;
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@ -204,7 +96,7 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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buf[0] = u8tmp;
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buf[1] = 0x40;
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ret = m88ts2022_wr_regs(dev, 0x10, buf, 2);
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ret = regmap_bulk_write(dev->regmap, 0x10, buf, 2);
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if (ret)
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goto err;
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@ -223,7 +115,7 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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buf[0] = (u16tmp >> 8) & 0x3f;
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buf[1] = (u16tmp >> 0) & 0xff;
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buf[2] = div_ref - 8;
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ret = m88ts2022_wr_regs(dev, 0x01, buf, 3);
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ret = regmap_bulk_write(dev->regmap, 0x01, buf, 3);
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if (ret)
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goto err;
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@ -236,17 +128,17 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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if (ret)
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goto err;
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ret = m88ts2022_rd_reg(dev, 0x14, &u8tmp);
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ret = regmap_read(dev->regmap, 0x14, &utmp);
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if (ret)
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goto err;
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u8tmp &= 0x7f;
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if (u8tmp < 64) {
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ret = m88ts2022_wr_reg_mask(dev, 0x10, 0x80, 0x80);
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utmp &= 0x7f;
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if (utmp < 64) {
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ret = regmap_update_bits(dev->regmap, 0x10, 0x80, 0x80);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x11, 0x6f);
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ret = regmap_write(dev->regmap, 0x11, 0x6f);
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if (ret)
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goto err;
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@ -255,13 +147,13 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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goto err;
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}
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ret = m88ts2022_rd_reg(dev, 0x14, &u8tmp);
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ret = regmap_read(dev->regmap, 0x14, &utmp);
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if (ret)
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goto err;
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u8tmp &= 0x1f;
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if (u8tmp > 19) {
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ret = m88ts2022_wr_reg_mask(dev, 0x10, 0x00, 0x02);
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utmp &= 0x1f;
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if (utmp > 19) {
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ret = regmap_update_bits(dev->regmap, 0x10, 0x02, 0x00);
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if (ret)
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goto err;
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}
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@ -270,26 +162,26 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x25, 0x00);
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ret = regmap_write(dev->regmap, 0x25, 0x00);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x27, 0x70);
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ret = regmap_write(dev->regmap, 0x27, 0x70);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x41, 0x09);
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ret = regmap_write(dev->regmap, 0x41, 0x09);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x08, 0x0b);
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ret = regmap_write(dev->regmap, 0x08, 0x0b);
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if (ret)
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goto err;
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/* filters */
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gdiv28 = DIV_ROUND_CLOSEST(f_ref_khz * 1694U, 1000000U);
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ret = m88ts2022_wr_reg(dev, 0x04, gdiv28);
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ret = regmap_write(dev->regmap, 0x04, gdiv28);
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if (ret)
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goto err;
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@ -299,7 +191,7 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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cap_code = u8tmp & 0x3f;
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ret = m88ts2022_wr_reg(dev, 0x41, 0x0d);
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ret = regmap_write(dev->regmap, 0x41, 0x0d);
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if (ret)
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goto err;
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@ -327,11 +219,11 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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lpf_mxdiv = DIV_ROUND_CLOSEST(++lpf_gm * LPF_COEFF * f_ref_khz, f_3db_hz);
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lpf_mxdiv = clamp_val(lpf_mxdiv, 0U, div_max);
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ret = m88ts2022_wr_reg(dev, 0x04, lpf_mxdiv);
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ret = regmap_write(dev->regmap, 0x04, lpf_mxdiv);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x06, lpf_gm);
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ret = regmap_write(dev->regmap, 0x06, lpf_gm);
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if (ret)
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goto err;
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@ -341,7 +233,7 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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cap_code = u8tmp & 0x3f;
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ret = m88ts2022_wr_reg(dev, 0x41, 0x09);
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ret = regmap_write(dev->regmap, 0x41, 0x09);
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if (ret)
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goto err;
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@ -353,15 +245,15 @@ static int m88ts2022_set_params(struct dvb_frontend *fe)
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cap_code = (cap_code + u8tmp) / 2;
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u8tmp = cap_code | 0x80;
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ret = m88ts2022_wr_reg(dev, 0x25, u8tmp);
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ret = regmap_write(dev->regmap, 0x25, u8tmp);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x27, 0x30);
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ret = regmap_write(dev->regmap, 0x27, 0x30);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x08, 0x09);
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ret = regmap_write(dev->regmap, 0x08, 0x09);
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if (ret)
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goto err;
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@ -396,11 +288,11 @@ static int m88ts2022_init(struct dvb_frontend *fe)
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dev_dbg(&dev->client->dev, "\n");
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ret = m88ts2022_wr_reg(dev, 0x00, 0x01);
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ret = regmap_write(dev->regmap, 0x00, 0x01);
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if (ret)
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goto err;
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ret = m88ts2022_wr_reg(dev, 0x00, 0x03);
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ret = regmap_write(dev->regmap, 0x00, 0x03);
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if (ret)
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goto err;
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@ -410,7 +302,7 @@ static int m88ts2022_init(struct dvb_frontend *fe)
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break;
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case M88TS2022_CLOCK_OUT_ENABLED:
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u8tmp = 0x70;
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ret = m88ts2022_wr_reg(dev, 0x05, dev->cfg.clock_out_div);
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ret = regmap_write(dev->regmap, 0x05, dev->cfg.clock_out_div);
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if (ret)
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goto err;
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break;
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@ -421,7 +313,7 @@ static int m88ts2022_init(struct dvb_frontend *fe)
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goto err;
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}
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ret = m88ts2022_wr_reg(dev, 0x42, u8tmp);
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ret = regmap_write(dev->regmap, 0x42, u8tmp);
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if (ret)
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goto err;
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@ -430,12 +322,12 @@ static int m88ts2022_init(struct dvb_frontend *fe)
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else
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u8tmp = 0x6c;
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ret = m88ts2022_wr_reg(dev, 0x62, u8tmp);
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ret = regmap_write(dev->regmap, 0x62, u8tmp);
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if (ret)
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goto err;
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for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
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ret = m88ts2022_wr_reg(dev, reg_vals[i].reg, reg_vals[i].val);
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ret = regmap_write(dev->regmap, reg_vals[i].reg, reg_vals[i].val);
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if (ret)
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goto err;
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}
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@ -452,7 +344,7 @@ static int m88ts2022_sleep(struct dvb_frontend *fe)
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dev_dbg(&dev->client->dev, "\n");
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ret = m88ts2022_wr_reg(dev, 0x00, 0x00);
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ret = regmap_write(dev->regmap, 0x00, 0x00);
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if (ret)
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goto err;
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err:
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@ -485,29 +377,28 @@ static int m88ts2022_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
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{
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struct m88ts2022_dev *dev = fe->tuner_priv;
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int ret;
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u8 u8tmp;
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u16 gain, u16tmp;
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unsigned int gain1, gain2, gain3;
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unsigned int utmp, gain1, gain2, gain3;
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ret = m88ts2022_rd_reg(dev, 0x3d, &u8tmp);
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ret = regmap_read(dev->regmap, 0x3d, &utmp);
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if (ret)
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goto err;
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gain1 = (u8tmp >> 0) & 0x1f;
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gain1 = (utmp >> 0) & 0x1f;
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gain1 = clamp(gain1, 0U, 15U);
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ret = m88ts2022_rd_reg(dev, 0x21, &u8tmp);
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ret = regmap_read(dev->regmap, 0x21, &utmp);
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if (ret)
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goto err;
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gain2 = (u8tmp >> 0) & 0x1f;
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gain2 = (utmp >> 0) & 0x1f;
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gain2 = clamp(gain2, 2U, 16U);
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ret = m88ts2022_rd_reg(dev, 0x66, &u8tmp);
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ret = regmap_read(dev->regmap, 0x66, &utmp);
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if (ret)
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goto err;
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gain3 = (u8tmp >> 3) & 0x07;
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gain3 = (utmp >> 3) & 0x07;
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gain3 = clamp(gain3, 0U, 6U);
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gain = gain1 * 265 + gain2 * 338 + gain3 * 285;
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@ -546,7 +437,12 @@ static int m88ts2022_probe(struct i2c_client *client,
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struct dvb_frontend *fe = cfg->fe;
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struct m88ts2022_dev *dev;
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int ret;
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u8 chip_id, u8tmp;
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u8 u8tmp;
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unsigned int utmp;
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static const struct regmap_config regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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};
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dev = kzalloc(sizeof(*dev), GFP_KERNEL);
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if (!dev) {
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@ -557,33 +453,38 @@ static int m88ts2022_probe(struct i2c_client *client,
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memcpy(&dev->cfg, cfg, sizeof(struct m88ts2022_config));
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dev->client = client;
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dev->regmap = devm_regmap_init_i2c(client, ®map_config);
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if (IS_ERR(dev->regmap)) {
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ret = PTR_ERR(dev->regmap);
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goto err;
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}
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/* check if the tuner is there */
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ret = m88ts2022_rd_reg(dev, 0x00, &u8tmp);
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ret = regmap_read(dev->regmap, 0x00, &utmp);
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if (ret)
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goto err;
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|
||||
if ((u8tmp & 0x03) == 0x00) {
|
||||
ret = m88ts2022_wr_reg(dev, 0x00, 0x01);
|
||||
if (ret < 0)
|
||||
if ((utmp & 0x03) == 0x00) {
|
||||
ret = regmap_write(dev->regmap, 0x00, 0x01);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
usleep_range(2000, 50000);
|
||||
}
|
||||
|
||||
ret = m88ts2022_wr_reg(dev, 0x00, 0x03);
|
||||
ret = regmap_write(dev->regmap, 0x00, 0x03);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
usleep_range(2000, 50000);
|
||||
|
||||
ret = m88ts2022_rd_reg(dev, 0x00, &chip_id);
|
||||
ret = regmap_read(dev->regmap, 0x00, &utmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
dev_dbg(&dev->client->dev, "chip_id=%02x\n", chip_id);
|
||||
dev_dbg(&dev->client->dev, "chip_id=%02x\n", utmp);
|
||||
|
||||
switch (chip_id) {
|
||||
switch (utmp) {
|
||||
case 0xc3:
|
||||
case 0x83:
|
||||
break;
|
||||
@ -597,7 +498,7 @@ static int m88ts2022_probe(struct i2c_client *client,
|
||||
break;
|
||||
case M88TS2022_CLOCK_OUT_ENABLED:
|
||||
u8tmp = 0x70;
|
||||
ret = m88ts2022_wr_reg(dev, 0x05, dev->cfg.clock_out_div);
|
||||
ret = regmap_write(dev->regmap, 0x05, dev->cfg.clock_out_div);
|
||||
if (ret)
|
||||
goto err;
|
||||
break;
|
||||
@ -608,7 +509,7 @@ static int m88ts2022_probe(struct i2c_client *client,
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = m88ts2022_wr_reg(dev, 0x42, u8tmp);
|
||||
ret = regmap_write(dev->regmap, 0x42, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
@ -617,12 +518,12 @@ static int m88ts2022_probe(struct i2c_client *client,
|
||||
else
|
||||
u8tmp = 0x6c;
|
||||
|
||||
ret = m88ts2022_wr_reg(dev, 0x62, u8tmp);
|
||||
ret = regmap_write(dev->regmap, 0x62, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
/* sleep */
|
||||
ret = m88ts2022_wr_reg(dev, 0x00, 0x00);
|
||||
ret = regmap_write(dev->regmap, 0x00, 0x00);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
|
||||
@ -18,10 +18,12 @@
|
||||
#define M88TS2022_PRIV_H
|
||||
|
||||
#include "m88ts2022.h"
|
||||
#include <linux/regmap.h>
|
||||
|
||||
struct m88ts2022_dev {
|
||||
struct m88ts2022_config cfg;
|
||||
struct i2c_client *client;
|
||||
struct regmap *regmap;
|
||||
struct dvb_frontend *fe;
|
||||
u32 frequency_khz;
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user