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- /*
- * Sony CXD2820R demodulator driver
- *
- * Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #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)
- {
- 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 */
- /* 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 */
- /* 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);
- }
- /* write single register with mask */
- int cxd2820r_wr_reg_mask(struct cxd2820r_priv *priv, u32 reg, u8 val,
- u8 mask)
- {
- int ret;
- u8 tmp;
- /* no need for read if whole reg is written */
- if (mask != 0xff) {
- ret = cxd2820r_rd_reg(priv, reg, &tmp);
- if (ret)
- return ret;
- val &= mask;
- tmp &= ~mask;
- val |= tmp;
- }
- return cxd2820r_wr_reg(priv, reg, val);
- }
- int cxd2820r_gpio(struct dvb_frontend *fe, u8 *gpio)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret, i;
- u8 tmp0, tmp1;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
- /* update GPIOs only when needed */
- if (!memcmp(gpio, priv->gpio, sizeof(priv->gpio)))
- return 0;
- tmp0 = 0x00;
- tmp1 = 0x00;
- for (i = 0; i < sizeof(priv->gpio); i++) {
- /* enable / disable */
- if (gpio[i] & CXD2820R_GPIO_E)
- tmp0 |= (2 << 6) >> (2 * i);
- else
- tmp0 |= (1 << 6) >> (2 * i);
- /* input / output */
- if (gpio[i] & CXD2820R_GPIO_I)
- tmp1 |= (1 << (3 + i));
- else
- tmp1 |= (0 << (3 + i));
- /* high / low */
- if (gpio[i] & CXD2820R_GPIO_H)
- tmp1 |= (1 << (0 + i));
- else
- tmp1 |= (0 << (0 + i));
- dev_dbg(&priv->i2c->dev, "%s: gpio i=%d %02x %02x\n", __func__,
- i, tmp0, tmp1);
- }
- dev_dbg(&priv->i2c->dev, "%s: wr gpio=%02x %02x\n", __func__, tmp0,
- tmp1);
- /* write bits [7:2] */
- ret = cxd2820r_wr_reg_mask(priv, 0x00089, tmp0, 0xfc);
- if (ret)
- goto error;
- /* write bits [5:0] */
- ret = cxd2820r_wr_reg_mask(priv, 0x0008e, tmp1, 0x3f);
- if (ret)
- goto error;
- memcpy(priv->gpio, gpio, sizeof(priv->gpio));
- return ret;
- error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
- return ret;
- }
- static int cxd2820r_set_frontend(struct dvb_frontend *fe)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- 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);
- switch (c->delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_init_t(fe);
- if (ret < 0)
- goto err;
- ret = cxd2820r_set_frontend_t(fe);
- if (ret < 0)
- goto err;
- break;
- case SYS_DVBT2:
- ret = cxd2820r_init_t(fe);
- if (ret < 0)
- goto err;
- ret = cxd2820r_set_frontend_t2(fe);
- if (ret < 0)
- goto err;
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_init_c(fe);
- if (ret < 0)
- goto err;
- ret = cxd2820r_set_frontend_c(fe);
- if (ret < 0)
- goto err;
- break;
- default:
- dev_dbg(&priv->i2c->dev, "%s: error state=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
- ret = -EINVAL;
- break;
- }
- err:
- return ret;
- }
- static int cxd2820r_read_status(struct dvb_frontend *fe, enum fe_status *status)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_read_status_t(fe, status);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_read_status_t2(fe, status);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_read_status_c(fe, status);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
- }
- static int cxd2820r_get_frontend(struct dvb_frontend *fe)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
- if (priv->delivery_system == SYS_UNDEFINED)
- return 0;
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_get_frontend_t(fe);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_get_frontend_t2(fe);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_get_frontend_c(fe);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
- }
- static int cxd2820r_read_ber(struct dvb_frontend *fe, u32 *ber)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.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;
- }
- static int cxd2820r_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.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;
- }
- static int cxd2820r_read_snr(struct dvb_frontend *fe, u16 *snr)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.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;
- }
- static int cxd2820r_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.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;
- }
- static int cxd2820r_init(struct dvb_frontend *fe)
- {
- return 0;
- }
- static int cxd2820r_sleep(struct dvb_frontend *fe)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_sleep_t(fe);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_sleep_t2(fe);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_sleep_c(fe);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
- }
- static int cxd2820r_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *s)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- int ret;
- dev_dbg(&priv->i2c->dev, "%s: delsys=%d\n", __func__,
- fe->dtv_property_cache.delivery_system);
- switch (fe->dtv_property_cache.delivery_system) {
- case SYS_DVBT:
- ret = cxd2820r_get_tune_settings_t(fe, s);
- break;
- case SYS_DVBT2:
- ret = cxd2820r_get_tune_settings_t2(fe, s);
- break;
- case SYS_DVBC_ANNEX_A:
- ret = cxd2820r_get_tune_settings_c(fe, s);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
- }
- static enum dvbfe_search cxd2820r_search(struct dvb_frontend *fe)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- 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);
- /* switch between DVB-T and DVB-T2 when tune fails */
- if (priv->last_tune_failed) {
- if (priv->delivery_system == SYS_DVBT) {
- ret = cxd2820r_sleep_t(fe);
- if (ret)
- goto error;
- c->delivery_system = SYS_DVBT2;
- } else if (priv->delivery_system == SYS_DVBT2) {
- ret = cxd2820r_sleep_t2(fe);
- if (ret)
- goto error;
- c->delivery_system = SYS_DVBT;
- }
- }
- /* set frontend */
- ret = cxd2820r_set_frontend(fe);
- if (ret)
- goto error;
- /* frontend lock wait loop count */
- switch (priv->delivery_system) {
- case SYS_DVBT:
- case SYS_DVBC_ANNEX_A:
- i = 20;
- break;
- case SYS_DVBT2:
- i = 40;
- break;
- case SYS_UNDEFINED:
- default:
- i = 0;
- break;
- }
- /* wait frontend lock */
- for (; i > 0; i--) {
- dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
- msleep(50);
- ret = cxd2820r_read_status(fe, &status);
- if (ret)
- goto error;
- if (status & FE_HAS_LOCK)
- break;
- }
- /* check if we have a valid signal */
- if (status & FE_HAS_LOCK) {
- priv->last_tune_failed = false;
- return DVBFE_ALGO_SEARCH_SUCCESS;
- } else {
- priv->last_tune_failed = true;
- return DVBFE_ALGO_SEARCH_AGAIN;
- }
- error:
- dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
- return DVBFE_ALGO_SEARCH_ERROR;
- }
- static int cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
- {
- return DVBFE_ALGO_CUSTOM;
- }
- static void cxd2820r_release(struct dvb_frontend *fe)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- dev_dbg(&priv->i2c->dev, "%s\n", __func__);
- #ifdef CONFIG_GPIOLIB
- /* remove GPIOs */
- if (priv->gpio_chip.label)
- gpiochip_remove(&priv->gpio_chip);
- #endif
- kfree(priv);
- return;
- }
- static int cxd2820r_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
- {
- struct cxd2820r_priv *priv = fe->demodulator_priv;
- dev_dbg(&priv->i2c->dev, "%s: %d\n", __func__, enable);
- /* Bit 0 of reg 0xdb in bank 0x00 controls I2C repeater */
- return cxd2820r_wr_reg_mask(priv, 0xdb, enable ? 1 : 0, 0x1);
- }
- #ifdef CONFIG_GPIOLIB
- static int cxd2820r_gpio_direction_output(struct gpio_chip *chip, unsigned nr,
- int val)
- {
- struct cxd2820r_priv *priv =
- container_of(chip, struct cxd2820r_priv, gpio_chip);
- u8 gpio[GPIO_COUNT];
- dev_dbg(&priv->i2c->dev, "%s: nr=%d val=%d\n", __func__, nr, val);
- memcpy(gpio, priv->gpio, sizeof(gpio));
- gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
- return cxd2820r_gpio(&priv->fe, gpio);
- }
- static void cxd2820r_gpio_set(struct gpio_chip *chip, unsigned nr, int val)
- {
- struct cxd2820r_priv *priv =
- container_of(chip, struct cxd2820r_priv, gpio_chip);
- u8 gpio[GPIO_COUNT];
- dev_dbg(&priv->i2c->dev, "%s: nr=%d val=%d\n", __func__, nr, val);
- memcpy(gpio, priv->gpio, sizeof(gpio));
- gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
- (void) cxd2820r_gpio(&priv->fe, gpio);
- return;
- }
- static int cxd2820r_gpio_get(struct gpio_chip *chip, unsigned nr)
- {
- struct cxd2820r_priv *priv =
- container_of(chip, struct cxd2820r_priv, gpio_chip);
- dev_dbg(&priv->i2c->dev, "%s: nr=%d\n", __func__, nr);
- return (priv->gpio[nr] >> 2) & 0x01;
- }
- #endif
- static const struct dvb_frontend_ops cxd2820r_ops = {
- .delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
- /* default: DVB-T/T2 */
- .info = {
- .name = "Sony CXD2820R",
- .caps = FE_CAN_FEC_1_2 |
- FE_CAN_FEC_2_3 |
- FE_CAN_FEC_3_4 |
- FE_CAN_FEC_5_6 |
- FE_CAN_FEC_7_8 |
- FE_CAN_FEC_AUTO |
- FE_CAN_QPSK |
- FE_CAN_QAM_16 |
- FE_CAN_QAM_32 |
- FE_CAN_QAM_64 |
- FE_CAN_QAM_128 |
- FE_CAN_QAM_256 |
- FE_CAN_QAM_AUTO |
- FE_CAN_TRANSMISSION_MODE_AUTO |
- FE_CAN_GUARD_INTERVAL_AUTO |
- FE_CAN_HIERARCHY_AUTO |
- FE_CAN_MUTE_TS |
- FE_CAN_2G_MODULATION |
- FE_CAN_MULTISTREAM
- },
- .release = cxd2820r_release,
- .init = cxd2820r_init,
- .sleep = cxd2820r_sleep,
- .get_tune_settings = cxd2820r_get_tune_settings,
- .i2c_gate_ctrl = cxd2820r_i2c_gate_ctrl,
- .get_frontend = cxd2820r_get_frontend,
- .get_frontend_algo = cxd2820r_get_frontend_algo,
- .search = cxd2820r_search,
- .read_status = cxd2820r_read_status,
- .read_snr = cxd2820r_read_snr,
- .read_ber = cxd2820r_read_ber,
- .read_ucblocks = cxd2820r_read_ucblocks,
- .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
- )
- {
- struct cxd2820r_priv *priv;
- int ret;
- u8 tmp;
- priv = kzalloc(sizeof(struct cxd2820r_priv), GFP_KERNEL);
- if (!priv) {
- ret = -ENOMEM;
- dev_err(&i2c->dev, "%s: kzalloc() failed\n",
- KBUILD_MODNAME);
- goto error;
- }
- 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->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;
- if (gpio_chip_base) {
- #ifdef CONFIG_GPIOLIB
- /* add GPIOs */
- priv->gpio_chip.label = KBUILD_MODNAME;
- priv->gpio_chip.dev = &priv->i2c->dev;
- priv->gpio_chip.owner = THIS_MODULE;
- 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.ngpio = GPIO_COUNT;
- priv->gpio_chip.can_sleep = 1;
- ret = gpiochip_add(&priv->gpio_chip);
- if (ret)
- goto error;
- dev_dbg(&priv->i2c->dev, "%s: gpio_chip.base=%d\n", __func__,
- priv->gpio_chip.base);
- *gpio_chip_base = priv->gpio_chip.base;
- #else
- /*
- * Use static GPIO configuration if GPIOLIB is undefined.
- * This is fallback condition.
- */
- u8 gpio[GPIO_COUNT];
- gpio[0] = (*gpio_chip_base >> 0) & 0x07;
- gpio[1] = (*gpio_chip_base >> 3) & 0x07;
- gpio[2] = 0;
- ret = cxd2820r_gpio(&priv->fe, gpio);
- if (ret)
- goto error;
- #endif
- }
- return &priv->fe;
- error:
- dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
- kfree(priv);
- return NULL;
- }
- EXPORT_SYMBOL(cxd2820r_attach);
- MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
- MODULE_DESCRIPTION("Sony CXD2820R demodulator driver");
- MODULE_LICENSE("GPL");
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