#include "cxd2820r_priv.h"
-/* Max transfer size done by I2C transfer functions */
-#define MAX_XFER_SIZE 64
-
-/* write multiple registers */
-static int cxd2820r_wr_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
- u8 *val, int len)
-{
- int ret;
- u8 buf[MAX_XFER_SIZE];
- struct i2c_msg msg[1] = {
- {
- .addr = i2c,
- .flags = 0,
- .len = len + 1,
- .buf = buf,
- }
- };
-
- if (1 + len > sizeof(buf)) {
- dev_warn(&priv->i2c->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->i2c, msg, 1);
- if (ret == 1) {
- ret = 0;
- } else {
- dev_warn(&priv->i2c->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 cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
- u8 *val, int len)
-{
- int ret;
- u8 buf[MAX_XFER_SIZE];
- struct i2c_msg msg[2] = {
- {
- .addr = i2c,
- .flags = 0,
- .len = 1,
- .buf = ®,
- }, {
- .addr = i2c,
- .flags = I2C_M_RD,
- .len = len,
- .buf = buf,
- }
- };
-
- if (len > sizeof(buf)) {
- dev_warn(&priv->i2c->dev,
- "%s: i2c wr reg=%04x: len=%d is too big!\n",
- KBUILD_MODNAME, reg, len);
- return -EINVAL;
- }
-
- ret = i2c_transfer(priv->i2c, msg, 2);
- if (ret == 2) {
- memcpy(val, buf, len);
- ret = 0;
- } else {
- dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \
- "len=%d\n", KBUILD_MODNAME, ret, reg, len);
- ret = -EREMOTEIO;
- }
-
- return ret;
-}
-
-/* write multiple registers */
-int cxd2820r_wr_regs(struct cxd2820r_priv *priv, u32 reginfo, u8 *val,
- int len)
+/* Write register table */
+int cxd2820r_wr_reg_val_mask_tab(struct cxd2820r_priv *priv,
+ const struct reg_val_mask *tab, int tab_len)
{
+ struct i2c_client *client = priv->client[0];
int ret;
- u8 i2c_addr;
- u8 reg = (reginfo >> 0) & 0xff;
- u8 bank = (reginfo >> 8) & 0xff;
- u8 i2c = (reginfo >> 16) & 0x01;
-
- /* select I2C */
- if (i2c)
- i2c_addr = priv->cfg.i2c_address | (1 << 1); /* DVB-C */
- else
- i2c_addr = priv->cfg.i2c_address; /* DVB-T/T2 */
+ unsigned int i, reg, mask, val;
+ struct regmap *regmap;
- /* switch bank if needed */
- if (bank != priv->bank[i2c]) {
- ret = cxd2820r_wr_regs_i2c(priv, i2c_addr, 0x00, &bank, 1);
- if (ret)
- return ret;
- priv->bank[i2c] = bank;
- }
- return cxd2820r_wr_regs_i2c(priv, i2c_addr, reg, val, len);
-}
-
-/* read multiple registers */
-int cxd2820r_rd_regs(struct cxd2820r_priv *priv, u32 reginfo, u8 *val,
- int len)
-{
- int ret;
- u8 i2c_addr;
- u8 reg = (reginfo >> 0) & 0xff;
- u8 bank = (reginfo >> 8) & 0xff;
- u8 i2c = (reginfo >> 16) & 0x01;
-
- /* select I2C */
- if (i2c)
- i2c_addr = priv->cfg.i2c_address | (1 << 1); /* DVB-C */
- else
- i2c_addr = priv->cfg.i2c_address; /* DVB-T/T2 */
+ dev_dbg(&client->dev, "tab_len=%d\n", tab_len);
- /* switch bank if needed */
- if (bank != priv->bank[i2c]) {
- ret = cxd2820r_wr_regs_i2c(priv, i2c_addr, 0x00, &bank, 1);
- if (ret)
- return ret;
- priv->bank[i2c] = bank;
- }
- return cxd2820r_rd_regs_i2c(priv, i2c_addr, reg, val, len);
-}
-
-/* write single register */
-int cxd2820r_wr_reg(struct cxd2820r_priv *priv, u32 reg, u8 val)
-{
- return cxd2820r_wr_regs(priv, reg, &val, 1);
-}
-
-/* read single register */
-int cxd2820r_rd_reg(struct cxd2820r_priv *priv, u32 reg, u8 *val)
-{
- return cxd2820r_rd_regs(priv, reg, val, 1);
-}
+ for (i = 0; i < tab_len; i++) {
+ if ((tab[i].reg >> 16) & 0x1)
+ regmap = priv->regmap[1];
+ else
+ regmap = priv->regmap[0];
-/* write single register with mask */
-int cxd2820r_wr_reg_mask(struct cxd2820r_priv *priv, u32 reg, u8 val,
- u8 mask)
-{
- int ret;
- u8 tmp;
+ reg = (tab[i].reg >> 0) & 0xffff;
+ val = tab[i].val;
+ mask = tab[i].mask;
- /* no need for read if whole reg is written */
- if (mask != 0xff) {
- ret = cxd2820r_rd_reg(priv, reg, &tmp);
+ if (mask == 0xff)
+ ret = regmap_write(regmap, reg, val);
+ else
+ ret = regmap_write_bits(regmap, reg, mask, val);
if (ret)
- return ret;
-
- val &= mask;
- tmp &= ~mask;
- val |= tmp;
+ goto error;
}
- return cxd2820r_wr_reg(priv, reg, val);
+ return 0;
+error:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
}
int cxd2820r_gpio(struct dvb_frontend *fe, u8 *gpio)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
u8 tmp0, tmp1;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
/* update GPIOs only when needed */
if (!memcmp(gpio, priv->gpio, sizeof(priv->gpio)))
else
tmp1 |= (0 << (0 + i));
- dev_dbg(&priv->i2c->dev, "%s: gpio i=%d %02x %02x\n", __func__,
- i, tmp0, tmp1);
+ dev_dbg(&client->dev, "gpio i=%d %02x %02x\n", i, tmp0, tmp1);
}
- dev_dbg(&priv->i2c->dev, "%s: wr gpio=%02x %02x\n", __func__, tmp0,
- tmp1);
+ dev_dbg(&client->dev, "wr gpio=%02x %02x\n", tmp0, tmp1);
/* write bits [7:2] */
- ret = cxd2820r_wr_reg_mask(priv, 0x00089, tmp0, 0xfc);
+ ret = regmap_update_bits(priv->regmap[0], 0x0089, 0xfc, tmp0);
if (ret)
goto error;
/* write bits [5:0] */
- ret = cxd2820r_wr_reg_mask(priv, 0x0008e, tmp1, 0x3f);
+ ret = regmap_update_bits(priv->regmap[0], 0x008e, 0x3f, tmp1);
if (ret)
goto error;
return ret;
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int cxd2820r_set_frontend(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
switch (c->delivery_system) {
case SYS_DVBT:
goto err;
break;
default:
- dev_dbg(&priv->i2c->dev, "%s: error state=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "invalid delivery_system\n");
ret = -EINVAL;
break;
}
static int cxd2820r_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
+ switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_read_status_t(fe, status);
break;
struct dtv_frontend_properties *p)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
if (priv->delivery_system == SYS_UNDEFINED)
return 0;
- switch (fe->dtv_property_cache.delivery_system) {
+ switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_get_frontend_t(fe, p);
break;
static int cxd2820r_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_read_ber_t(fe, ber);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_read_ber_t2(fe, ber);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_read_ber_c(fe, ber);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
+ *ber = (priv->post_bit_error - priv->post_bit_error_prev_dvbv3);
+ priv->post_bit_error_prev_dvbv3 = priv->post_bit_error;
+
+ return 0;
}
static int cxd2820r_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_read_signal_strength_t(fe, strength);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_read_signal_strength_t2(fe, strength);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_read_signal_strength_c(fe, strength);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
+ if (c->strength.stat[0].scale == FE_SCALE_RELATIVE)
+ *strength = c->strength.stat[0].uvalue;
+ else
+ *strength = 0;
+
+ return 0;
}
static int cxd2820r_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_read_snr_t(fe, snr);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_read_snr_t2(fe, snr);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_read_snr_c(fe, snr);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
+ if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
+ *snr = div_s64(c->cnr.stat[0].svalue, 100);
+ else
+ *snr = 0;
+
+ return 0;
}
static int cxd2820r_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_read_ucblocks_t(fe, ucblocks);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_read_ucblocks_t2(fe, ucblocks);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_read_ucblocks_c(fe, ucblocks);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
+ *ucblocks = 0;
+
+ return 0;
}
static int cxd2820r_init(struct dvb_frontend *fe)
static int cxd2820r_sleep(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
+ switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_sleep_t(fe);
break;
struct dvb_frontend_tune_settings *s)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
+ switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_get_tune_settings_t(fe, s);
break;
static enum dvbfe_search cxd2820r_search(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
enum fe_status status = 0;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
+ dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
/* switch between DVB-T and DVB-T2 when tune fails */
if (priv->last_tune_failed) {
if (ret)
goto error;
-
/* frontend lock wait loop count */
switch (priv->delivery_system) {
case SYS_DVBT:
/* wait frontend lock */
for (; i > 0; i--) {
- dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
+ dev_dbg(&client->dev, "loop=%d\n", i);
msleep(50);
ret = cxd2820r_read_status(fe, &status);
if (ret)
}
error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
return DVBFE_ALGO_SEARCH_ERROR;
}
static void cxd2820r_release(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
- dev_dbg(&priv->i2c->dev, "%s\n", __func__);
+ dev_dbg(&client->dev, "\n");
-#ifdef CONFIG_GPIOLIB
- /* remove GPIOs */
- if (priv->gpio_chip.label)
- gpiochip_remove(&priv->gpio_chip);
+ i2c_unregister_device(client);
-#endif
- kfree(priv);
return;
}
static int cxd2820r_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
+ struct i2c_client *client = priv->client[0];
- dev_dbg(&priv->i2c->dev, "%s: %d\n", __func__, enable);
+ dev_dbg_ratelimited(&client->dev, "enable=%d\n", enable);
- /* Bit 0 of reg 0xdb in bank 0x00 controls I2C repeater */
- return cxd2820r_wr_reg_mask(priv, 0xdb, enable ? 1 : 0, 0x1);
+ return regmap_update_bits(priv->regmap[0], 0x00db, 0x01, enable ? 1 : 0);
}
#ifdef CONFIG_GPIOLIB
int val)
{
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
+ struct i2c_client *client = priv->client[0];
u8 gpio[GPIO_COUNT];
- dev_dbg(&priv->i2c->dev, "%s: nr=%d val=%d\n", __func__, nr, val);
+ dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val);
memcpy(gpio, priv->gpio, sizeof(gpio));
gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
static void cxd2820r_gpio_set(struct gpio_chip *chip, unsigned nr, int val)
{
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
+ struct i2c_client *client = priv->client[0];
u8 gpio[GPIO_COUNT];
- dev_dbg(&priv->i2c->dev, "%s: nr=%d val=%d\n", __func__, nr, val);
+ dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val);
memcpy(gpio, priv->gpio, sizeof(gpio));
gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
static int cxd2820r_gpio_get(struct gpio_chip *chip, unsigned nr)
{
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
+ struct i2c_client *client = priv->client[0];
- dev_dbg(&priv->i2c->dev, "%s: nr=%d\n", __func__, nr);
+ dev_dbg(&client->dev, "nr=%u\n", nr);
return (priv->gpio[nr] >> 2) & 0x01;
}
.read_signal_strength = cxd2820r_read_signal_strength,
};
-struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
- struct i2c_adapter *i2c, int *gpio_chip_base
-)
+/*
+ * XXX: That is wrapper to cxd2820r_probe() via driver core in order to provide
+ * proper I2C client for legacy media attach binding.
+ * New users must use I2C client binding directly!
+ */
+struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *config,
+ struct i2c_adapter *adapter,
+ int *gpio_chip_base)
+{
+ struct i2c_client *client;
+ struct i2c_board_info board_info;
+ struct cxd2820r_platform_data pdata;
+
+ pdata.ts_mode = config->ts_mode;
+ pdata.ts_clk_inv = config->ts_clock_inv;
+ pdata.if_agc_polarity = config->if_agc_polarity;
+ pdata.spec_inv = config->spec_inv;
+ pdata.gpio_chip_base = &gpio_chip_base;
+ pdata.attach_in_use = true;
+
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "cxd2820r", I2C_NAME_SIZE);
+ board_info.addr = config->i2c_address;
+ board_info.platform_data = &pdata;
+ client = i2c_new_device(adapter, &board_info);
+ if (!client || !client->dev.driver)
+ return NULL;
+
+ return pdata.get_dvb_frontend(client);
+}
+EXPORT_SYMBOL(cxd2820r_attach);
+
+static struct dvb_frontend *cxd2820r_get_dvb_frontend(struct i2c_client *client)
+{
+ struct cxd2820r_priv *priv = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ return &priv->fe;
+}
+
+static int cxd2820r_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
+ struct cxd2820r_platform_data *pdata = client->dev.platform_data;
struct cxd2820r_priv *priv;
- int ret;
- u8 tmp;
+ int ret, *gpio_chip_base;
+ unsigned int utmp;
+ static const struct regmap_range_cfg regmap_range_cfg0[] = {
+ {
+ .range_min = 0x0000,
+ .range_max = 0x3fff,
+ .selector_reg = 0x00,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0x00,
+ .window_len = 0x100,
+ },
+ };
+ static const struct regmap_range_cfg regmap_range_cfg1[] = {
+ {
+ .range_min = 0x0000,
+ .range_max = 0x01ff,
+ .selector_reg = 0x00,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0x00,
+ .window_len = 0x100,
+ },
+ };
+ static const struct regmap_config regmap_config0 = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0x3fff,
+ .ranges = regmap_range_cfg0,
+ .num_ranges = ARRAY_SIZE(regmap_range_cfg0),
+ .cache_type = REGCACHE_NONE,
+ };
+ static const struct regmap_config regmap_config1 = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0x01ff,
+ .ranges = regmap_range_cfg1,
+ .num_ranges = ARRAY_SIZE(regmap_range_cfg1),
+ .cache_type = REGCACHE_NONE,
+ };
+
+ dev_dbg(&client->dev, "\n");
- priv = kzalloc(sizeof(struct cxd2820r_priv), GFP_KERNEL);
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
ret = -ENOMEM;
- dev_err(&i2c->dev, "%s: kzalloc() failed\n",
- KBUILD_MODNAME);
- goto error;
+ goto err;
}
- priv->i2c = i2c;
- memcpy(&priv->cfg, cfg, sizeof(struct cxd2820r_config));
- memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(struct dvb_frontend_ops));
- priv->fe.demodulator_priv = priv;
+ priv->client[0] = client;
+ priv->i2c = client->adapter;
+ priv->ts_mode = pdata->ts_mode;
+ priv->ts_clk_inv = pdata->ts_clk_inv;
+ priv->if_agc_polarity = pdata->if_agc_polarity;
+ priv->spec_inv = pdata->spec_inv;
+ gpio_chip_base = *pdata->gpio_chip_base;
+ priv->regmap[0] = regmap_init_i2c(priv->client[0], ®map_config0);
+ if (IS_ERR(priv->regmap[0])) {
+ ret = PTR_ERR(priv->regmap[0]);
+ goto err_kfree;
+ }
- priv->bank[0] = priv->bank[1] = 0xff;
- ret = cxd2820r_rd_reg(priv, 0x000fd, &tmp);
- dev_dbg(&priv->i2c->dev, "%s: chip id=%02x\n", __func__, tmp);
- if (ret || tmp != 0xe1)
- goto error;
+ /* Check demod answers with correct chip id */
+ ret = regmap_read(priv->regmap[0], 0x00fd, &utmp);
+ if (ret)
+ goto err_regmap_0_regmap_exit;
+
+ dev_dbg(&client->dev, "chip_id=%02x\n", utmp);
+
+ if (utmp != 0xe1) {
+ ret = -ENODEV;
+ goto err_regmap_0_regmap_exit;
+ }
+
+ /*
+ * Chip has two I2C addresses for different register banks. We register
+ * one dummy I2C client in in order to get own I2C client for each
+ * register bank.
+ */
+ priv->client[1] = i2c_new_dummy(client->adapter, client->addr | (1 << 1));
+ if (!priv->client[1]) {
+ ret = -ENODEV;
+ dev_err(&client->dev, "I2C registration failed\n");
+ if (ret)
+ goto err_regmap_0_regmap_exit;
+ }
+
+ priv->regmap[1] = regmap_init_i2c(priv->client[1], ®map_config1);
+ if (IS_ERR(priv->regmap[1])) {
+ ret = PTR_ERR(priv->regmap[1]);
+ goto err_client_1_i2c_unregister_device;
+ }
if (gpio_chip_base) {
#ifdef CONFIG_GPIOLIB
- /* add GPIOs */
+ /* Add GPIOs */
priv->gpio_chip.label = KBUILD_MODNAME;
- priv->gpio_chip.parent = &priv->i2c->dev;
+ priv->gpio_chip.parent = &client->dev;
priv->gpio_chip.owner = THIS_MODULE;
- priv->gpio_chip.direction_output =
- cxd2820r_gpio_direction_output;
+ priv->gpio_chip.direction_output = cxd2820r_gpio_direction_output;
priv->gpio_chip.set = cxd2820r_gpio_set;
priv->gpio_chip.get = cxd2820r_gpio_get;
- priv->gpio_chip.base = -1; /* dynamic allocation */
+ priv->gpio_chip.base = -1; /* Dynamic allocation */
priv->gpio_chip.ngpio = GPIO_COUNT;
priv->gpio_chip.can_sleep = 1;
ret = gpiochip_add_data(&priv->gpio_chip, priv);
if (ret)
- goto error;
+ goto err_regmap_1_regmap_exit;
- dev_dbg(&priv->i2c->dev, "%s: gpio_chip.base=%d\n", __func__,
- priv->gpio_chip.base);
+ dev_dbg(&client->dev, "gpio_chip.base=%d\n",
+ priv->gpio_chip.base);
*gpio_chip_base = priv->gpio_chip.base;
#else
gpio[2] = 0;
ret = cxd2820r_gpio(&priv->fe, gpio);
if (ret)
- goto error;
+ goto err_regmap_1_regmap_exit;
#endif
}
- return &priv->fe;
-error:
- dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
+ /* Create dvb frontend */
+ memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(priv->fe.ops));
+ if (!pdata->attach_in_use)
+ priv->fe.ops.release = NULL;
+ priv->fe.demodulator_priv = priv;
+ i2c_set_clientdata(client, priv);
+
+ /* Setup callbacks */
+ pdata->get_dvb_frontend = cxd2820r_get_dvb_frontend;
+
+ dev_info(&client->dev, "Sony CXD2820R successfully identified\n");
+
+ return 0;
+err_regmap_1_regmap_exit:
+ regmap_exit(priv->regmap[1]);
+err_client_1_i2c_unregister_device:
+ i2c_unregister_device(priv->client[1]);
+err_regmap_0_regmap_exit:
+ regmap_exit(priv->regmap[0]);
+err_kfree:
kfree(priv);
- return NULL;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
}
-EXPORT_SYMBOL(cxd2820r_attach);
+
+static int cxd2820r_remove(struct i2c_client *client)
+{
+ struct cxd2820r_priv *priv = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+#ifdef CONFIG_GPIOLIB
+ if (priv->gpio_chip.label)
+ gpiochip_remove(&priv->gpio_chip);
+#endif
+ regmap_exit(priv->regmap[1]);
+ i2c_unregister_device(priv->client[1]);
+
+ regmap_exit(priv->regmap[0]);
+
+ kfree(priv);
+
+ return 0;
+}
+
+static const struct i2c_device_id cxd2820r_id_table[] = {
+ {"cxd2820r", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, cxd2820r_id_table);
+
+static struct i2c_driver cxd2820r_driver = {
+ .driver = {
+ .name = "cxd2820r",
+ .suppress_bind_attrs = true,
+ },
+ .probe = cxd2820r_probe,
+ .remove = cxd2820r_remove,
+ .id_table = cxd2820r_id_table,
+};
+
+module_i2c_driver(cxd2820r_driver);
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Sony CXD2820R demodulator driver");
projects / cascardo / linux.git / blobdiff