diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/media/dvb-frontends/rtl2832.c | 190 | ||||
-rw-r--r-- | drivers/media/dvb-frontends/rtl2832.h | 4 | ||||
-rw-r--r-- | drivers/media/dvb-frontends/rtl2832_sdr.c | 13 | ||||
-rw-r--r-- | drivers/media/dvb-frontends/rtl2832_sdr.h | 5 | ||||
-rw-r--r-- | drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 5 |
5 files changed, 36 insertions, 181 deletions
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index 1b23788797b5..957523f07f61 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -153,43 +153,6 @@ static const struct rtl2832_reg_entry registers[] = { [DVBT_REG_4MSEL] = {0x013, 0, 0}, }; -/* Our regmap is bypassing I2C adapter lock, thus we do it! */ -static int rtl2832_bulk_write(struct i2c_client *client, unsigned int reg, - const void *val, size_t val_count) -{ - struct rtl2832_dev *dev = i2c_get_clientdata(client); - int ret; - - i2c_lock_adapter(client->adapter); - ret = regmap_bulk_write(dev->regmap, reg, val, val_count); - i2c_unlock_adapter(client->adapter); - return ret; -} - -static int rtl2832_update_bits(struct i2c_client *client, unsigned int reg, - unsigned int mask, unsigned int val) -{ - struct rtl2832_dev *dev = i2c_get_clientdata(client); - int ret; - - i2c_lock_adapter(client->adapter); - ret = regmap_update_bits(dev->regmap, reg, mask, val); - i2c_unlock_adapter(client->adapter); - return ret; -} - -static int rtl2832_bulk_read(struct i2c_client *client, unsigned int reg, - void *val, size_t val_count) -{ - struct rtl2832_dev *dev = i2c_get_clientdata(client); - int ret; - - i2c_lock_adapter(client->adapter); - ret = regmap_bulk_read(dev->regmap, reg, val, val_count); - i2c_unlock_adapter(client->adapter); - return ret; -} - static int rtl2832_rd_demod_reg(struct rtl2832_dev *dev, int reg, u32 *val) { struct i2c_client *client = dev->client; @@ -204,7 +167,7 @@ static int rtl2832_rd_demod_reg(struct rtl2832_dev *dev, int reg, u32 *val) len = (msb >> 3) + 1; mask = REG_MASK(msb - lsb); - ret = rtl2832_bulk_read(client, reg_start_addr, reading, len); + ret = regmap_bulk_read(dev->regmap, reg_start_addr, reading, len); if (ret) goto err; @@ -234,7 +197,7 @@ static int rtl2832_wr_demod_reg(struct rtl2832_dev *dev, int reg, u32 val) len = (msb >> 3) + 1; mask = REG_MASK(msb - lsb); - ret = rtl2832_bulk_read(client, reg_start_addr, reading, len); + ret = regmap_bulk_read(dev->regmap, reg_start_addr, reading, len); if (ret) goto err; @@ -248,7 +211,7 @@ static int rtl2832_wr_demod_reg(struct rtl2832_dev *dev, int reg, u32 val) for (i = 0; i < len; i++) writing[i] = (writing_tmp >> ((len - 1 - i) * 8)) & 0xff; - ret = rtl2832_bulk_write(client, reg_start_addr, writing, len); + ret = regmap_bulk_write(dev->regmap, reg_start_addr, writing, len); if (ret) goto err; @@ -525,7 +488,8 @@ static int rtl2832_set_frontend(struct dvb_frontend *fe) } for (j = 0; j < sizeof(bw_params[0]); j++) { - ret = rtl2832_bulk_write(client, 0x11c + j, &bw_params[i][j], 1); + ret = regmap_bulk_write(dev->regmap, + 0x11c + j, &bw_params[i][j], 1); if (ret) goto err; } @@ -581,11 +545,11 @@ static int rtl2832_get_frontend(struct dvb_frontend *fe, if (dev->sleeping) return 0; - ret = rtl2832_bulk_read(client, 0x33c, buf, 2); + ret = regmap_bulk_read(dev->regmap, 0x33c, buf, 2); if (ret) goto err; - ret = rtl2832_bulk_read(client, 0x351, &buf[2], 1); + ret = regmap_bulk_read(dev->regmap, 0x351, &buf[2], 1); if (ret) goto err; @@ -716,7 +680,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status) /* signal strength */ if (dev->fe_status & FE_HAS_SIGNAL) { /* read digital AGC */ - ret = rtl2832_bulk_read(client, 0x305, &u8tmp, 1); + ret = regmap_bulk_read(dev->regmap, 0x305, &u8tmp, 1); if (ret) goto err; @@ -742,7 +706,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status) {87659938, 87659938, 87885178, 88241743}, }; - ret = rtl2832_bulk_read(client, 0x33c, &u8tmp, 1); + ret = regmap_bulk_read(dev->regmap, 0x33c, &u8tmp, 1); if (ret) goto err; @@ -754,7 +718,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status) if (hierarchy > HIERARCHY_NUM - 1) goto err; - ret = rtl2832_bulk_read(client, 0x40c, buf, 2); + ret = regmap_bulk_read(dev->regmap, 0x40c, buf, 2); if (ret) goto err; @@ -775,7 +739,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status) /* BER */ if (dev->fe_status & FE_HAS_LOCK) { - ret = rtl2832_bulk_read(client, 0x34e, buf, 2); + ret = regmap_bulk_read(dev->regmap, 0x34e, buf, 2); if (ret) goto err; @@ -825,8 +789,6 @@ static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber) /* * I2C gate/mux/repeater logic - * We must use unlocked __i2c_transfer() here (through regmap) because of I2C - * adapter lock is already taken by tuner driver. * There is delay mechanism to avoid unneeded I2C gate open / close. Gate close * is delayed here a little bit in order to see if there is sequence of I2C * messages sent to same I2C bus. @@ -838,7 +800,7 @@ static void rtl2832_i2c_gate_work(struct work_struct *work) int ret; /* close gate */ - ret = rtl2832_update_bits(dev->client, 0x101, 0x08, 0x00); + ret = regmap_update_bits(dev->regmap, 0x101, 0x08, 0x00); if (ret) goto err; @@ -856,10 +818,7 @@ static int rtl2832_select(struct i2c_mux_core *muxc, u32 chan_id) /* terminate possible gate closing */ cancel_delayed_work(&dev->i2c_gate_work); - /* - * I2C adapter lock is already taken and due to that we will use - * regmap_update_bits() which does not lock again I2C adapter. - */ + /* open gate */ ret = regmap_update_bits(dev->regmap, 0x101, 0x08, 0x08); if (ret) goto err; @@ -932,94 +891,6 @@ static bool rtl2832_volatile_reg(struct device *dev, unsigned int reg) } /* - * We implement own I2C access routines for regmap in order to get manual access - * to I2C adapter lock, which is needed for I2C mux adapter. - */ -static int rtl2832_regmap_read(void *context, const void *reg_buf, - size_t reg_size, void *val_buf, size_t val_size) -{ - struct i2c_client *client = context; - int ret; - struct i2c_msg msg[2] = { - { - .addr = client->addr, - .flags = 0, - .len = reg_size, - .buf = (u8 *)reg_buf, - }, { - .addr = client->addr, - .flags = I2C_M_RD, - .len = val_size, - .buf = val_buf, - } - }; - - ret = __i2c_transfer(client->adapter, msg, 2); - if (ret != 2) { - dev_warn(&client->dev, "i2c reg read failed %d reg %02x\n", - ret, *(u8 *)reg_buf); - if (ret >= 0) - ret = -EREMOTEIO; - return ret; - } - return 0; -} - -static int rtl2832_regmap_write(void *context, const void *data, size_t count) -{ - struct i2c_client *client = context; - int ret; - struct i2c_msg msg[1] = { - { - .addr = client->addr, - .flags = 0, - .len = count, - .buf = (u8 *)data, - } - }; - - ret = __i2c_transfer(client->adapter, msg, 1); - if (ret != 1) { - dev_warn(&client->dev, "i2c reg write failed %d reg %02x\n", - ret, *(u8 *)data); - if (ret >= 0) - ret = -EREMOTEIO; - return ret; - } - return 0; -} - -static int rtl2832_regmap_gather_write(void *context, const void *reg, - size_t reg_len, const void *val, - size_t val_len) -{ - struct i2c_client *client = context; - int ret; - u8 buf[256]; - struct i2c_msg msg[1] = { - { - .addr = client->addr, - .flags = 0, - .len = 1 + val_len, - .buf = buf, - } - }; - - buf[0] = *(u8 const *)reg; - memcpy(&buf[1], val, val_len); - - ret = __i2c_transfer(client->adapter, msg, 1); - if (ret != 1) { - dev_warn(&client->dev, "i2c reg write failed %d reg %02x\n", - ret, *(u8 const *)reg); - if (ret >= 0) - ret = -EREMOTEIO; - return ret; - } - return 0; -} - -/* * FIXME: Hack. Implement own regmap locking in order to silence lockdep * recursive lock warning. That happens when regmap I2C client calls I2C mux * adapter, which leads demod I2C repeater enable via demod regmap. Operation @@ -1072,29 +943,29 @@ static int rtl2832_slave_ts_ctrl(struct i2c_client *client, bool enable) ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); if (ret) goto err; - ret = rtl2832_bulk_write(client, 0x10c, "\x5f\xff", 2); + ret = regmap_bulk_write(dev->regmap, 0x10c, "\x5f\xff", 2); if (ret) goto err; ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1); if (ret) goto err; - ret = rtl2832_bulk_write(client, 0x0bc, "\x18", 1); + ret = regmap_bulk_write(dev->regmap, 0x0bc, "\x18", 1); if (ret) goto err; - ret = rtl2832_bulk_write(client, 0x192, "\x7f\xf7\xff", 3); + ret = regmap_bulk_write(dev->regmap, 0x192, "\x7f\xf7\xff", 3); if (ret) goto err; } else { - ret = rtl2832_bulk_write(client, 0x192, "\x00\x0f\xff", 3); + ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3); if (ret) goto err; - ret = rtl2832_bulk_write(client, 0x0bc, "\x08", 1); + ret = regmap_bulk_write(dev->regmap, 0x0bc, "\x08", 1); if (ret) goto err; ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x0); if (ret) goto err; - ret = rtl2832_bulk_write(client, 0x10c, "\x00\x00", 2); + ret = regmap_bulk_write(dev->regmap, 0x10c, "\x00\x00", 2); if (ret) goto err; ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); @@ -1123,7 +994,7 @@ static int rtl2832_pid_filter_ctrl(struct dvb_frontend *fe, int onoff) else u8tmp = 0x00; - ret = rtl2832_update_bits(client, 0x061, 0xc0, u8tmp); + ret = regmap_update_bits(dev->regmap, 0x061, 0xc0, u8tmp); if (ret) goto err; @@ -1158,14 +1029,14 @@ static int rtl2832_pid_filter(struct dvb_frontend *fe, u8 index, u16 pid, buf[1] = (dev->filters >> 8) & 0xff; buf[2] = (dev->filters >> 16) & 0xff; buf[3] = (dev->filters >> 24) & 0xff; - ret = rtl2832_bulk_write(client, 0x062, buf, 4); + ret = regmap_bulk_write(dev->regmap, 0x062, buf, 4); if (ret) goto err; /* add PID */ buf[0] = (pid >> 8) & 0xff; buf[1] = (pid >> 0) & 0xff; - ret = rtl2832_bulk_write(client, 0x066 + 2 * index, buf, 2); + ret = regmap_bulk_write(dev->regmap, 0x066 + 2 * index, buf, 2); if (ret) goto err; @@ -1183,12 +1054,6 @@ static int rtl2832_probe(struct i2c_client *client, struct rtl2832_dev *dev; int ret; u8 tmp; - static const struct regmap_bus regmap_bus = { - .read = rtl2832_regmap_read, - .write = rtl2832_regmap_write, - .gather_write = rtl2832_regmap_gather_write, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, - }; static const struct regmap_range_cfg regmap_range_cfg[] = { { .selector_reg = 0x00, @@ -1228,20 +1093,19 @@ static int rtl2832_probe(struct i2c_client *client, dev->regmap_config.ranges = regmap_range_cfg, dev->regmap_config.num_ranges = ARRAY_SIZE(regmap_range_cfg), dev->regmap_config.cache_type = REGCACHE_NONE, - dev->regmap = regmap_init(&client->dev, ®map_bus, client, - &dev->regmap_config); + dev->regmap = regmap_init_i2c(client, &dev->regmap_config); if (IS_ERR(dev->regmap)) { ret = PTR_ERR(dev->regmap); goto err_kfree; } /* check if the demod is there */ - ret = rtl2832_bulk_read(client, 0x000, &tmp, 1); + ret = regmap_bulk_read(dev->regmap, 0x000, &tmp, 1); if (ret) goto err_regmap_exit; /* create muxed i2c adapter for demod tuner bus */ - dev->muxc = i2c_mux_alloc(i2c, &i2c->dev, 1, 0, 0, + dev->muxc = i2c_mux_alloc(i2c, &i2c->dev, 1, 0, I2C_MUX_LOCKED, rtl2832_select, rtl2832_deselect); if (!dev->muxc) { ret = -ENOMEM; @@ -1262,9 +1126,7 @@ static int rtl2832_probe(struct i2c_client *client, pdata->slave_ts_ctrl = rtl2832_slave_ts_ctrl; pdata->pid_filter = rtl2832_pid_filter; pdata->pid_filter_ctrl = rtl2832_pid_filter_ctrl; - pdata->bulk_read = rtl2832_bulk_read; - pdata->bulk_write = rtl2832_bulk_write; - pdata->update_bits = rtl2832_update_bits; + pdata->regmap = dev->regmap; dev_info(&client->dev, "Realtek RTL2832 successfully attached\n"); return 0; diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h index 6390af64cf45..03c0de039fa9 100644 --- a/drivers/media/dvb-frontends/rtl2832.h +++ b/drivers/media/dvb-frontends/rtl2832.h @@ -57,9 +57,7 @@ struct rtl2832_platform_data { int (*pid_filter)(struct dvb_frontend *, u8, u16, int); int (*pid_filter_ctrl)(struct dvb_frontend *, int); /* private: Register access for SDR module use only */ - int (*bulk_read)(struct i2c_client *, unsigned int, void *, size_t); - int (*bulk_write)(struct i2c_client *, unsigned int, const void *, size_t); - int (*update_bits)(struct i2c_client *, unsigned int, unsigned int, unsigned int); + struct regmap *regmap; }; #endif /* RTL2832_H */ diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c index b860f02a4e55..6a6b1debe277 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.c +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c @@ -35,6 +35,7 @@ #include <linux/platform_device.h> #include <linux/jiffies.h> #include <linux/math64.h> +#include <linux/regmap.h> static bool rtl2832_sdr_emulated_fmt; module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644); @@ -169,9 +170,9 @@ static int rtl2832_sdr_wr_regs(struct rtl2832_sdr_dev *dev, u16 reg, { struct platform_device *pdev = dev->pdev; struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; - struct i2c_client *client = pdata->i2c_client; + struct regmap *regmap = pdata->regmap; - return pdata->bulk_write(client, reg, val, len); + return regmap_bulk_write(regmap, reg, val, len); } #if 0 @@ -181,9 +182,9 @@ static int rtl2832_sdr_rd_regs(struct rtl2832_sdr_dev *dev, u16 reg, u8 *val, { struct platform_device *pdev = dev->pdev; struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; - struct i2c_client *client = pdata->i2c_client; + struct regmap *regmap = pdata->regmap; - return pdata->bulk_read(client, reg, val, len); + return regmap_bulk_read(regmap, reg, val, len); } #endif @@ -199,9 +200,9 @@ static int rtl2832_sdr_wr_reg_mask(struct rtl2832_sdr_dev *dev, u16 reg, { struct platform_device *pdev = dev->pdev; struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; - struct i2c_client *client = pdata->i2c_client; + struct regmap *regmap = pdata->regmap; - return pdata->update_bits(client, reg, mask, val); + return regmap_update_bits(regmap, reg, mask, val); } /* Private functions */ diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.h b/drivers/media/dvb-frontends/rtl2832_sdr.h index 342ea84860df..d8fc7e7212e3 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.h +++ b/drivers/media/dvb-frontends/rtl2832_sdr.h @@ -56,10 +56,7 @@ struct rtl2832_sdr_platform_data { #define RTL2832_SDR_TUNER_R828D 0x2b u8 tuner; - struct i2c_client *i2c_client; - int (*bulk_read)(struct i2c_client *, unsigned int, void *, size_t); - int (*bulk_write)(struct i2c_client *, unsigned int, const void *, size_t); - int (*update_bits)(struct i2c_client *, unsigned int, unsigned int, unsigned int); + struct regmap *regmap; struct dvb_frontend *dvb_frontend; struct v4l2_subdev *v4l2_subdev; struct dvb_usb_device *dvb_usb_device; diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c index fa72642d41f3..eb7af8cb8aca 100644 --- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c +++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c @@ -1333,10 +1333,7 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap) case TUNER_RTL2832_R828D: pdata.clk = dev->rtl2832_platform_data.clk; pdata.tuner = dev->tuner; - pdata.i2c_client = dev->i2c_client_demod; - pdata.bulk_read = dev->rtl2832_platform_data.bulk_read; - pdata.bulk_write = dev->rtl2832_platform_data.bulk_write; - pdata.update_bits = dev->rtl2832_platform_data.update_bits; + pdata.regmap = dev->rtl2832_platform_data.regmap; pdata.dvb_frontend = adap->fe[0]; pdata.dvb_usb_device = d; pdata.v4l2_subdev = subdev; |