That comes possible after driver was converted to kernel I2C model
(I2C binding & proper I2C client with no gate control hack). All
nasty low level I2C routines are now covered by regmap.
Also some variable renaming and minor functionality changes.
Cc: Mauro Carvalho Chehab <m.che...@samsung.com>
Cc: Hans Verkuil <hverk...@xs4all.nl>
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/tuners/Kconfig | 1 +
drivers/media/tuners/e4000.c | 442 ++++++++++++++++----------------------
drivers/media/tuners/e4000_priv.h | 4 +-
3 files changed, 184 insertions(+), 263 deletions(-)
diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig
index ba2e365..a128488 100644
--- a/drivers/media/tuners/Kconfig
+++ b/drivers/media/tuners/Kconfig
@@ -204,6 +204,7 @@ config MEDIA_TUNER_TDA18212
config MEDIA_TUNER_E4000
tristate "Elonics E4000 silicon tuner"
depends on MEDIA_SUPPORT && I2C
+ select REGMAP_I2C
default m if !MEDIA_SUBDRV_AUTOSELECT
help
Elonics E4000 silicon tuner driver.
diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c
index e3e3b7e..0d516ad 100644
--- a/drivers/media/tuners/e4000.c
+++ b/drivers/media/tuners/e4000.c
@@ -21,203 +21,112 @@
#include "e4000_priv.h"
#include <linux/math64.h>
-/* Max transfer size done by I2C transfer functions */
-#define MAX_XFER_SIZE 64
-
-/* write multiple registers */
-static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
-{
- int ret;
- u8 buf[MAX_XFER_SIZE];
- struct i2c_msg msg[1] = {
- {
- .addr = priv->client->addr,
- .flags = 0,
- .len = 1 + len,
- .buf = buf,
- }
- };
-
- if (1 + len > sizeof(buf)) {
- dev_warn(&priv->client->dev,
- "%s: i2c wr reg=%04x: len=%d is too big!\n",
- KBUILD_MODNAME, reg, len);
- return -EINVAL;
- }
-
- buf[0] = reg;
- memcpy(&buf[1], val, len);
-
- ret = i2c_transfer(priv->client->adapter, msg, 1);
- if (ret == 1) {
- ret = 0;
- } else {
- dev_warn(&priv->client->dev,
- "%s: i2c wr failed=%d reg=%02x len=%d\n",
- KBUILD_MODNAME, ret, reg, len);
- ret = -EREMOTEIO;
- }
- return ret;
-}
-
-/* read multiple registers */
-static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
-{
- int ret;
- u8 buf[MAX_XFER_SIZE];
- struct i2c_msg msg[2] = {
- {
- .addr = priv->client->addr,
- .flags = 0,
- .len = 1,
- .buf = ®,
- }, {
- .addr = priv->client->addr,
- .flags = I2C_M_RD,
- .len = len,
- .buf = buf,
- }
- };
-
- if (len > sizeof(buf)) {
- dev_warn(&priv->client->dev,
- "%s: i2c rd reg=%04x: len=%d is too big!\n",
- KBUILD_MODNAME, reg, len);
- return -EINVAL;
- }
-
- ret = i2c_transfer(priv->client->adapter, msg, 2);
- if (ret == 2) {
- memcpy(val, buf, len);
- ret = 0;
- } else {
- dev_warn(&priv->client->dev,
- "%s: i2c rd failed=%d reg=%02x len=%d\n",
- KBUILD_MODNAME, ret, reg, len);
- ret = -EREMOTEIO;
- }
-
- return ret;
-}
-
-/* write single register */
-static int e4000_wr_reg(struct e4000_priv *priv, u8 reg, u8 val)
-{
- return e4000_wr_regs(priv, reg, &val, 1);
-}
-
-/* read single register */
-static int e4000_rd_reg(struct e4000_priv *priv, u8 reg, u8 *val)
-{
- return e4000_rd_regs(priv, reg, val, 1);
-}
-
static int e4000_init(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
- dev_dbg(&priv->client->dev, "%s:\n", __func__);
+ dev_dbg(&s->client->dev, "%s:\n", __func__);
/* dummy I2C to ensure I2C wakes up */
- ret = e4000_wr_reg(priv, 0x02, 0x40);
+ ret = regmap_write(s->regmap, 0x02, 0x40);
/* reset */
- ret = e4000_wr_reg(priv, 0x00, 0x01);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x00, 0x01);
+ if (ret)
goto err;
/* disable output clock */
- ret = e4000_wr_reg(priv, 0x06, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x06, 0x00);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x7a, 0x96);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x7a, 0x96);
+ if (ret)
goto err;
/* configure gains */
- ret = e4000_wr_regs(priv, 0x7e, "\x01\xfe", 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x7e, "\x01\xfe", 2);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x82, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x82, 0x00);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x24, 0x05);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x24, 0x05);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x87, "\x20\x01", 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x87, "\x20\x01", 2);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x9f, "\x7f\x07", 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x9f, "\x7f\x07", 2);
+ if (ret)
goto err;
/* DC offset control */
- ret = e4000_wr_reg(priv, 0x2d, 0x1f);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x2d, 0x1f);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x70, "\x01\x01", 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x70, "\x01\x01", 2);
+ if (ret)
goto err;
/* gain control */
- ret = e4000_wr_reg(priv, 0x1a, 0x17);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1a, 0x17);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x1f, 0x1a);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1f, 0x1a);
+ if (ret)
goto err;
- priv->active = true;
+ s->active = true;
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_sleep(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
- dev_dbg(&priv->client->dev, "%s:\n", __func__);
+ dev_dbg(&s->client->dev, "%s:\n", __func__);
- priv->active = false;
+ s->active = false;
- ret = e4000_wr_reg(priv, 0x00, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x00, 0x00);
+ if (ret)
goto err;
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_set_params(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i, sigma_delta;
u64 f_vco;
u8 buf[5], i_data[4], q_data[4];
- dev_dbg(&priv->client->dev,
+ dev_dbg(&s->client->dev,
"%s: delivery_system=%d frequency=%u bandwidth_hz=%u\n",
__func__, c->delivery_system, c->frequency,
c->bandwidth_hz);
/* gain control manual */
- ret = e4000_wr_reg(priv, 0x1a, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1a, 0x00);
+ if (ret)
goto err;
/* PLL */
@@ -232,19 +141,19 @@ static int e4000_set_params(struct dvb_frontend *fe)
}
f_vco = 1ull * c->frequency * e4000_pll_lut[i].mul;
- sigma_delta = div_u64(0x10000ULL * (f_vco % priv->clock), priv->clock);
- buf[0] = div_u64(f_vco, priv->clock);
+ sigma_delta = div_u64(0x10000ULL * (f_vco % s->clock), s->clock);
+ buf[0] = div_u64(f_vco, s->clock);
buf[1] = (sigma_delta >> 0) & 0xff;
buf[2] = (sigma_delta >> 8) & 0xff;
buf[3] = 0x00;
buf[4] = e4000_pll_lut[i].div;
- dev_dbg(&priv->client->dev,
+ dev_dbg(&s->client->dev,
"%s: f_vco=%llu pll div=%d sigma_delta=%04x\n",
__func__, f_vco, buf[0], sigma_delta);
- ret = e4000_wr_regs(priv, 0x09, buf, 5);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x09, buf, 5);
+ if (ret)
goto err;
/* LNA filter (RF filter) */
@@ -258,8 +167,8 @@ static int e4000_set_params(struct dvb_frontend *fe)
goto err;
}
- ret = e4000_wr_reg(priv, 0x10, e400_lna_filter_lut[i].val);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x10, e400_lna_filter_lut[i].val);
+ if (ret)
goto err;
/* IF filters */
@@ -276,8 +185,8 @@ static int e4000_set_params(struct dvb_frontend *fe)
buf[0] = e4000_if_filter_lut[i].reg11_val;
buf[1] = e4000_if_filter_lut[i].reg12_val;
- ret = e4000_wr_regs(priv, 0x11, buf, 2);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x11, buf, 2);
+ if (ret)
goto err;
/* frequency band */
@@ -291,34 +200,34 @@ static int e4000_set_params(struct dvb_frontend *fe)
goto err;
}
- ret = e4000_wr_reg(priv, 0x07, e4000_band_lut[i].reg07_val);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x07, e4000_band_lut[i].reg07_val);
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x78, e4000_band_lut[i].reg78_val);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x78, e4000_band_lut[i].reg78_val);
+ if (ret)
goto err;
/* DC offset */
for (i = 0; i < 4; i++) {
if (i == 0)
- ret = e4000_wr_regs(priv, 0x15, "\x00\x7e\x24", 3);
+ ret = regmap_bulk_write(s->regmap, 0x15,
"\x00\x7e\x24", 3);
else if (i == 1)
- ret = e4000_wr_regs(priv, 0x15, "\x00\x7f", 2);
+ ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7f", 2);
else if (i == 2)
- ret = e4000_wr_regs(priv, 0x15, "\x01", 1);
+ ret = regmap_bulk_write(s->regmap, 0x15, "\x01", 1);
else
- ret = e4000_wr_regs(priv, 0x16, "\x7e", 1);
+ ret = regmap_bulk_write(s->regmap, 0x16, "\x7e", 1);
- if (ret < 0)
+ if (ret)
goto err;
- ret = e4000_wr_reg(priv, 0x29, 0x01);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x29, 0x01);
+ if (ret)
goto err;
- ret = e4000_rd_regs(priv, 0x2a, buf, 3);
- if (ret < 0)
+ ret = regmap_bulk_read(s->regmap, 0x2a, buf, 3);
+ if (ret)
goto err;
i_data[i] = (((buf[2] >> 0) & 0x3) << 6) | (buf[0] & 0x3f);
@@ -328,30 +237,30 @@ static int e4000_set_params(struct dvb_frontend *fe)
swap(q_data[2], q_data[3]);
swap(i_data[2], i_data[3]);
- ret = e4000_wr_regs(priv, 0x50, q_data, 4);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x50, q_data, 4);
+ if (ret)
goto err;
- ret = e4000_wr_regs(priv, 0x60, i_data, 4);
- if (ret < 0)
+ ret = regmap_bulk_write(s->regmap, 0x60, i_data, 4);
+ if (ret)
goto err;
/* gain control auto */
- ret = e4000_wr_reg(priv, 0x1a, 0x17);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x1a, 0x17);
+ if (ret)
goto err;
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
- dev_dbg(&priv->client->dev, "%s:\n", __func__);
+ dev_dbg(&s->client->dev, "%s:\n", __func__);
*frequency = 0; /* Zero-IF */
@@ -360,143 +269,144 @@ static int e4000_get_if_frequency(struct dvb_frontend
*fe, u32 *frequency)
static int e4000_set_lna_gain(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
u8 u8tmp;
- dev_dbg(&priv->client->dev, "%s: lna auto=%d->%d val=%d->%d\n",
- __func__, priv->lna_gain_auto->cur.val,
- priv->lna_gain_auto->val, priv->lna_gain->cur.val,
- priv->lna_gain->val);
+ dev_dbg(&s->client->dev, "%s: lna auto=%d->%d val=%d->%d\n",
+ __func__, s->lna_gain_auto->cur.val,
+ s->lna_gain_auto->val, s->lna_gain->cur.val,
+ s->lna_gain->val);
- if (priv->lna_gain_auto->val && priv->if_gain_auto->cur.val)
+ if (s->lna_gain_auto->val && s->if_gain_auto->cur.val)
u8tmp = 0x17;
- else if (priv->lna_gain_auto->val)
+ else if (s->lna_gain_auto->val)
u8tmp = 0x19;
- else if (priv->if_gain_auto->cur.val)
+ else if (s->if_gain_auto->cur.val)
u8tmp = 0x16;
else
u8tmp = 0x10;
- ret = e4000_wr_reg(priv, 0x1a, u8tmp);
+ ret = regmap_write(s->regmap, 0x1a, u8tmp);
if (ret)
goto err;
- if (priv->lna_gain_auto->val == false) {
- ret = e4000_wr_reg(priv, 0x14, priv->lna_gain->val);
+ if (s->lna_gain_auto->val == false) {
+ ret = regmap_write(s->regmap, 0x14, s->lna_gain->val);
if (ret)
goto err;
}
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_set_mixer_gain(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
u8 u8tmp;
- dev_dbg(&priv->client->dev, "%s: mixer auto=%d->%d val=%d->%d\n",
- __func__, priv->mixer_gain_auto->cur.val,
- priv->mixer_gain_auto->val, priv->mixer_gain->cur.val,
- priv->mixer_gain->val);
+ dev_dbg(&s->client->dev, "%s: mixer auto=%d->%d val=%d->%d\n",
+ __func__, s->mixer_gain_auto->cur.val,
+ s->mixer_gain_auto->val, s->mixer_gain->cur.val,
+ s->mixer_gain->val);
- if (priv->mixer_gain_auto->val)
+ if (s->mixer_gain_auto->val)
u8tmp = 0x15;
else
u8tmp = 0x14;
- ret = e4000_wr_reg(priv, 0x20, u8tmp);
+ ret = regmap_write(s->regmap, 0x20, u8tmp);
if (ret)
goto err;
- if (priv->mixer_gain_auto->val == false) {
- ret = e4000_wr_reg(priv, 0x15, priv->mixer_gain->val);
+ if (s->mixer_gain_auto->val == false) {
+ ret = regmap_write(s->regmap, 0x15, s->mixer_gain->val);
if (ret)
goto err;
}
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_set_if_gain(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
u8 buf[2];
u8 u8tmp;
- dev_dbg(&priv->client->dev, "%s: if auto=%d->%d val=%d->%d\n",
- __func__, priv->if_gain_auto->cur.val,
- priv->if_gain_auto->val, priv->if_gain->cur.val,
- priv->if_gain->val);
+ dev_dbg(&s->client->dev, "%s: if auto=%d->%d val=%d->%d\n",
+ __func__, s->if_gain_auto->cur.val,
+ s->if_gain_auto->val, s->if_gain->cur.val,
+ s->if_gain->val);
- if (priv->if_gain_auto->val && priv->lna_gain_auto->cur.val)
+ if (s->if_gain_auto->val && s->lna_gain_auto->cur.val)
u8tmp = 0x17;
- else if (priv->lna_gain_auto->cur.val)
+ else if (s->lna_gain_auto->cur.val)
u8tmp = 0x19;
- else if (priv->if_gain_auto->val)
+ else if (s->if_gain_auto->val)
u8tmp = 0x16;
else
u8tmp = 0x10;
- ret = e4000_wr_reg(priv, 0x1a, u8tmp);
+ ret = regmap_write(s->regmap, 0x1a, u8tmp);
if (ret)
goto err;
- if (priv->if_gain_auto->val == false) {
- buf[0] = e4000_if_gain_lut[priv->if_gain->val].reg16_val;
- buf[1] = e4000_if_gain_lut[priv->if_gain->val].reg17_val;
- ret = e4000_wr_regs(priv, 0x16, buf, 2);
+ if (s->if_gain_auto->val == false) {
+ buf[0] = e4000_if_gain_lut[s->if_gain->val].reg16_val;
+ buf[1] = e4000_if_gain_lut[s->if_gain->val].reg17_val;
+ ret = regmap_bulk_write(s->regmap, 0x16, buf, 2);
if (ret)
goto err;
}
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_pll_lock(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
+ struct e4000 *s = fe->tuner_priv;
int ret;
- u8 u8tmp;
-
- if (priv->active == false)
- return 0;
+ unsigned int utmp;
- ret = e4000_rd_reg(priv, 0x07, &u8tmp);
+ ret = regmap_read(s->regmap, 0x07, &utmp);
if (ret)
goto err;
- priv->pll_lock->val = (u8tmp & 0x01);
+ s->pll_lock->val = (utmp & 0x01);
err:
if (ret)
- dev_dbg(&priv->client->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
- struct e4000_priv *priv =
- container_of(ctrl->handler, struct e4000_priv, hdl);
+ struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);
int ret;
+ if (s->active == false)
+ return 0;
+
switch (ctrl->id) {
case V4L2_CID_PLL_LOCK:
- ret = e4000_pll_lock(priv->fe);
+ ret = e4000_pll_lock(s->fe);
break;
default:
+ dev_dbg(&s->client->dev, "%s: unknown ctrl: id=%d name=%s\n",
+ __func__, ctrl->id, ctrl->name);
ret = -EINVAL;
}
@@ -505,36 +415,35 @@ static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
static int e4000_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct e4000_priv *priv =
- container_of(ctrl->handler, struct e4000_priv, hdl);
- struct dvb_frontend *fe = priv->fe;
+ struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);
+ struct dvb_frontend *fe = s->fe;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- dev_dbg(&priv->client->dev,
- "%s: id=%d name=%s val=%d min=%d max=%d step=%d\n",
- __func__, ctrl->id, ctrl->name, ctrl->val,
- ctrl->minimum, ctrl->maximum, ctrl->step);
+ if (s->active == false)
+ return 0;
switch (ctrl->id) {
case V4L2_CID_BANDWIDTH_AUTO:
case V4L2_CID_BANDWIDTH:
- c->bandwidth_hz = priv->bandwidth->val;
- ret = e4000_set_params(priv->fe);
+ c->bandwidth_hz = s->bandwidth->val;
+ ret = e4000_set_params(s->fe);
break;
case V4L2_CID_LNA_GAIN_AUTO:
case V4L2_CID_LNA_GAIN:
- ret = e4000_set_lna_gain(priv->fe);
+ ret = e4000_set_lna_gain(s->fe);
break;
case V4L2_CID_MIXER_GAIN_AUTO:
case V4L2_CID_MIXER_GAIN:
- ret = e4000_set_mixer_gain(priv->fe);
+ ret = e4000_set_mixer_gain(s->fe);
break;
case V4L2_CID_IF_GAIN_AUTO:
case V4L2_CID_IF_GAIN:
- ret = e4000_set_if_gain(priv->fe);
+ ret = e4000_set_if_gain(s->fe);
break;
default:
+ dev_dbg(&s->client->dev, "%s: unknown ctrl: id=%d name=%s\n",
+ __func__, ctrl->id, ctrl->name);
ret = -EINVAL;
}
@@ -562,8 +471,8 @@ static const struct dvb_tuner_ops e4000_tuner_ops = {
struct v4l2_ctrl_handler *e4000_get_ctrl_handler(struct dvb_frontend *fe)
{
- struct e4000_priv *priv = fe->tuner_priv;
- return &priv->hdl;
+ struct e4000 *s = fe->tuner_priv;
+ return &s->hdl;
}
EXPORT_SYMBOL(e4000_get_ctrl_handler);
@@ -572,82 +481,91 @@ static int e4000_probe(struct i2c_client *client,
{
struct e4000_config *cfg = client->dev.platform_data;
struct dvb_frontend *fe = cfg->fe;
- struct e4000_priv *priv;
+ struct e4000 *s;
int ret;
- u8 chip_id;
+ unsigned int utmp;
+ static const struct regmap_config regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xff,
+ };
- priv = kzalloc(sizeof(struct e4000_priv), GFP_KERNEL);
- if (!priv) {
+ s = kzalloc(sizeof(struct e4000), GFP_KERNEL);
+ if (!s) {
ret = -ENOMEM;
dev_err(&client->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
goto err;
}
- priv->clock = cfg->clock;
- priv->client = client;
- priv->fe = cfg->fe;
+ s->clock = cfg->clock;
+ s->client = client;
+ s->fe = cfg->fe;
+ s->regmap = devm_regmap_init_i2c(client, ®map_config);
+ if (IS_ERR(s->regmap)) {
+ ret = PTR_ERR(s->regmap);
+ goto err;
+ }
/* check if the tuner is there */
- ret = e4000_rd_reg(priv, 0x02, &chip_id);
- if (ret < 0)
+ ret = regmap_read(s->regmap, 0x02, &utmp);
+ if (ret)
goto err;
- dev_dbg(&priv->client->dev,
- "%s: chip_id=%02x\n", __func__, chip_id);
+ dev_dbg(&s->client->dev, "%s: chip id=%02x\n", __func__, utmp);
- if (chip_id != 0x40) {
+ if (utmp != 0x40) {
ret = -ENODEV;
goto err;
}
/* put sleep as chip seems to be in normal mode by default */
- ret = e4000_wr_reg(priv, 0x00, 0x00);
- if (ret < 0)
+ ret = regmap_write(s->regmap, 0x00, 0x00);
+ if (ret)
goto err;
/* Register controls */
- v4l2_ctrl_handler_init(&priv->hdl, 9);
- priv->bandwidth_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_handler_init(&s->hdl, 9);
+ s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_BANDWIDTH_AUTO, 0, 1, 1, 1);
- priv->bandwidth = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_BANDWIDTH, 4300000, 11000000, 100000, 4300000);
- v4l2_ctrl_auto_cluster(2, &priv->bandwidth_auto, 0, false);
- priv->lna_gain_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
+ s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_LNA_GAIN_AUTO, 0, 1, 1, 1);
- priv->lna_gain = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_LNA_GAIN, 0, 15, 1, 10);
- v4l2_ctrl_auto_cluster(2, &priv->lna_gain_auto, 0, false);
- priv->mixer_gain_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false);
+ s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_MIXER_GAIN_AUTO, 0, 1, 1, 1);
- priv->mixer_gain = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_MIXER_GAIN, 0, 1, 1, 1);
- v4l2_ctrl_auto_cluster(2, &priv->mixer_gain_auto, 0, false);
- priv->if_gain_auto = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false);
+ s->if_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_IF_GAIN_AUTO, 0, 1, 1, 1);
- priv->if_gain = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ s->if_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_IF_GAIN, 0, 54, 1, 0);
- v4l2_ctrl_auto_cluster(2, &priv->if_gain_auto, 0, false);
- priv->pll_lock = v4l2_ctrl_new_std(&priv->hdl, &e4000_ctrl_ops,
+ v4l2_ctrl_auto_cluster(2, &s->if_gain_auto, 0, false);
+ s->pll_lock = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,
V4L2_CID_PLL_LOCK, 0, 1, 1, 0);
- if (priv->hdl.error) {
- ret = priv->hdl.error;
- dev_err(&priv->client->dev, "Could not initialize controls\n");
- v4l2_ctrl_handler_free(&priv->hdl);
+ if (s->hdl.error) {
+ ret = s->hdl.error;
+ dev_err(&s->client->dev, "Could not initialize controls\n");
+ v4l2_ctrl_handler_free(&s->hdl);
goto err;
}
- dev_info(&priv->client->dev,
+ dev_info(&s->client->dev,
"%s: Elonics E4000 successfully identified\n",
KBUILD_MODNAME);
- fe->tuner_priv = priv;
+ fe->tuner_priv = s;
memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops,
sizeof(struct dvb_tuner_ops));
- i2c_set_clientdata(client, priv);
+ i2c_set_clientdata(client, s);
err:
if (ret) {
dev_dbg(&client->dev, "%s: failed=%d\n", __func__, ret);
- kfree(priv);
+ kfree(s);
}
return ret;
@@ -655,15 +573,15 @@ err:
static int e4000_remove(struct i2c_client *client)
{
- struct e4000_priv *priv = i2c_get_clientdata(client);
- struct dvb_frontend *fe = priv->fe;
+ struct e4000 *s = i2c_get_clientdata(client);
+ struct dvb_frontend *fe = s->fe;
dev_dbg(&client->dev, "%s:\n", __func__);
- v4l2_ctrl_handler_free(&priv->hdl);
+ v4l2_ctrl_handler_free(&s->hdl);
memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
fe->tuner_priv = NULL;
- kfree(priv);
+ kfree(s);
return 0;
}
diff --git a/drivers/media/tuners/e4000_priv.h
b/drivers/media/tuners/e4000_priv.h
index d41dbcc..ee36de1 100644
--- a/drivers/media/tuners/e4000_priv.h
+++ b/drivers/media/tuners/e4000_priv.h
@@ -23,9 +23,11 @@
#include "e4000.h"
#include <media/v4l2-ctrls.h>
+#include <linux/regmap.h>
-struct e4000_priv {
+struct e4000 {
struct i2c_client *client;
+ struct regmap *regmap;
u32 clock;
struct dvb_frontend *fe;
bool active;
--
1.8.5.3
--
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