Both i2c and spi drivers have functions for reading and writing to/from registers. Remove this redundant and common code by using regmap API. Also remove multi_read and multi_write functions from i2c and spi driver as they are not being used anywhere.
Signed-off-by: Shreeya Patel <shreeya.patel23...@gmail.com> --- drivers/staging/iio/addac/adt7316-i2c.c | 101 ++-------------- drivers/staging/iio/addac/adt7316-spi.c | 94 +++------------ drivers/staging/iio/addac/adt7316.c | 147 ++++++++++++------------ drivers/staging/iio/addac/adt7316.h | 15 +-- 4 files changed, 103 insertions(+), 254 deletions(-) diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c index ac91163656b5..435b65845174 100644 --- a/drivers/staging/iio/addac/adt7316-i2c.c +++ b/drivers/staging/iio/addac/adt7316-i2c.c @@ -12,105 +12,28 @@ #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/module.h> +#include <linux/regmap.h> #include "adt7316.h" -/* - * adt7316 register access by I2C - */ -static int adt7316_i2c_read(void *client, u8 reg, u8 *data) -{ - struct i2c_client *cl = client; - int ret; - - ret = i2c_smbus_write_byte(cl, reg); - if (ret < 0) { - dev_err(&cl->dev, "I2C fail to select reg\n"); - return ret; - } - - ret = i2c_smbus_read_byte(client); - - if (!ret) - return -EIO; - - if (ret < 0) { - dev_err(&cl->dev, "I2C read error\n"); - return ret; - } - - *data = ret; - - return 0; -} - -static int adt7316_i2c_write(void *client, u8 reg, u8 data) -{ - struct i2c_client *cl = client; - int ret = 0; - - ret = i2c_smbus_write_byte_data(cl, reg, data); - if (ret < 0) - dev_err(&cl->dev, "I2C write error\n"); - - return ret; -} - -static int adt7316_i2c_multi_read(void *client, u8 reg, u8 count, u8 *data) -{ - struct i2c_client *cl = client; - int i, ret = 0; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - - for (i = 0; i < count; i++) { - ret = adt7316_i2c_read(cl, reg, &data[i]); - if (ret < 0) { - dev_err(&cl->dev, "I2C multi read error\n"); - return ret; - } - } - - return 0; -} - -static int adt7316_i2c_multi_write(void *client, u8 reg, u8 count, u8 *data) -{ - struct i2c_client *cl = client; - int i, ret = 0; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - - for (i = 0; i < count; i++) { - ret = adt7316_i2c_write(cl, reg, data[i]); - if (ret < 0) { - dev_err(&cl->dev, "I2C multi write error\n"); - return ret; - } - } - - return 0; -} - /* * device probe and remove */ - static int adt7316_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct adt7316_bus bus = { - .client = client, - .irq = client->irq, - .read = adt7316_i2c_read, - .write = adt7316_i2c_write, - .multi_read = adt7316_i2c_multi_read, - .multi_write = adt7316_i2c_multi_write, - }; + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &adt7316_regmap_config); + + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Error initializing i2c regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } - return adt7316_probe(&client->dev, &bus, id->name); + return adt7316_probe(&client->dev, regmap, id ? id->name : NULL, + client->irq); } static const struct i2c_device_id adt7316_i2c_id[] = { diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c index e75827e326a6..9e3decb5cb77 100644 --- a/drivers/staging/iio/addac/adt7316-spi.c +++ b/drivers/staging/iio/addac/adt7316-spi.c @@ -11,79 +11,12 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/interrupt.h> +#include <linux/regmap.h> #include <linux/spi/spi.h> #include "adt7316.h" #define ADT7316_SPI_MAX_FREQ_HZ 5000000 -#define ADT7316_SPI_CMD_READ 0x91 -#define ADT7316_SPI_CMD_WRITE 0x90 - -/* - * adt7316 register access by SPI - */ - -static int adt7316_spi_multi_read(void *client, u8 reg, u8 count, u8 *data) -{ - struct spi_device *spi_dev = client; - u8 cmd[2]; - int ret = 0; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - - cmd[0] = ADT7316_SPI_CMD_WRITE; - cmd[1] = reg; - - ret = spi_write(spi_dev, cmd, 2); - if (ret < 0) { - dev_err(&spi_dev->dev, "SPI fail to select reg\n"); - return ret; - } - - cmd[0] = ADT7316_SPI_CMD_READ; - - ret = spi_write_then_read(spi_dev, cmd, 1, data, count); - if (ret < 0) { - dev_err(&spi_dev->dev, "SPI read data error\n"); - return ret; - } - - return 0; -} - -static int adt7316_spi_multi_write(void *client, u8 reg, u8 count, u8 *data) -{ - struct spi_device *spi_dev = client; - u8 buf[ADT7316_REG_MAX_ADDR + 2]; - int i, ret = 0; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - - buf[0] = ADT7316_SPI_CMD_WRITE; - buf[1] = reg; - for (i = 0; i < count; i++) - buf[i + 2] = data[i]; - - ret = spi_write(spi_dev, buf, count + 2); - if (ret < 0) { - dev_err(&spi_dev->dev, "SPI write error\n"); - return ret; - } - - return ret; -} - -static int adt7316_spi_read(void *client, u8 reg, u8 *data) -{ - return adt7316_spi_multi_read(client, reg, 1, data); -} - -static int adt7316_spi_write(void *client, u8 reg, u8 val) -{ - return adt7316_spi_multi_write(client, reg, 1, &val); -} /* * device probe and remove @@ -91,14 +24,7 @@ static int adt7316_spi_write(void *client, u8 reg, u8 val) static int adt7316_spi_probe(struct spi_device *spi_dev) { - struct adt7316_bus bus = { - .client = spi_dev, - .irq = spi_dev->irq, - .read = adt7316_spi_read, - .write = adt7316_spi_write, - .multi_read = adt7316_spi_multi_read, - .multi_write = adt7316_spi_multi_write, - }; + struct regmap *regmap; /* don't exceed max specified SPI CLK frequency */ if (spi_dev->max_speed_hz > ADT7316_SPI_MAX_FREQ_HZ) { @@ -107,12 +33,20 @@ static int adt7316_spi_probe(struct spi_device *spi_dev) return -EINVAL; } + regmap = devm_regmap_init_spi(spi_dev, &adt7316_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi_dev->dev, "Error initializing spi regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + /* switch from default I2C protocol to SPI protocol */ - adt7316_spi_write(spi_dev, 0, 0); - adt7316_spi_write(spi_dev, 0, 0); - adt7316_spi_write(spi_dev, 0, 0); + regmap_write(regmap, 0, 0); + regmap_write(regmap, 0, 0); + regmap_write(regmap, 0, 0); - return adt7316_probe(&spi_dev->dev, &bus, spi_dev->modalias); + return adt7316_probe(&spi_dev->dev, regmap, spi_dev->modalias, + spi_dev->irq); } static const struct spi_device_id adt7316_spi_id[] = { diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c index 1ca4ee0f30ee..be2330a42706 100644 --- a/drivers/staging/iio/addac/adt7316.c +++ b/drivers/staging/iio/addac/adt7316.c @@ -17,6 +17,7 @@ #include <linux/list.h> #include <linux/i2c.h> #include <linux/rtc.h> +#include <linux/regmap.h> #include <linux/module.h> #include <linux/iio/iio.h> @@ -176,7 +177,7 @@ */ struct adt7316_chip_info { - struct adt7316_bus bus; + struct regmap *regmap; struct gpio_desc *ldac_pin; u16 int_mask; /* 0x2f */ u8 config1; @@ -237,7 +238,7 @@ static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip, else config1 = chip->config1 & ~ADT7316_EN; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -301,7 +302,7 @@ static ssize_t adt7316_store_select_ex_temp(struct device *dev, if (buf[0] == '1') config1 |= ADT7516_SEL_EX_TEMP; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -342,7 +343,7 @@ static ssize_t adt7316_store_mode(struct device *dev, if (!memcmp(buf, "single_channel", 14)) config2 |= ADT7316_AD_SINGLE_CH_MODE; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -435,7 +436,7 @@ static ssize_t adt7316_store_ad_channel(struct device *dev, config2 |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -495,7 +496,7 @@ static ssize_t adt7316_store_disable_averaging(struct device *dev, if (buf[0] == '1') config2 |= ADT7316_DISABLE_AVERAGING; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -534,7 +535,7 @@ static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev, if (buf[0] == '1') config2 |= ADT7316_EN_SMBUS_TIMEOUT; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -572,7 +573,7 @@ static ssize_t adt7316_store_powerdown(struct device *dev, if (buf[0] == '1') config1 |= ADT7316_PD; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -610,7 +611,7 @@ static ssize_t adt7316_store_fast_ad_clock(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_ADCLK_22_5; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -663,7 +664,7 @@ static ssize_t adt7316_store_da_high_resolution(struct device *dev, config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION); } - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -709,7 +710,7 @@ static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev, else config3 = chip->config3 | ADT7516_AIN_IN_VREF; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -748,7 +749,7 @@ static ssize_t adt7316_store_enable_prop_DACA(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_EN_IN_TEMP_PROP_DACA; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -787,7 +788,7 @@ static ssize_t adt7316_store_enable_prop_DACB(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_EN_EX_TEMP_PROP_DACB; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -830,7 +831,7 @@ static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev, dac_config = chip->dac_config & (~ADT7316_DA_2VREF_CH_MASK); dac_config |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -890,7 +891,7 @@ static ssize_t adt7316_store_DAC_update_mode(struct device *dev, dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK); dac_config |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -945,8 +946,8 @@ static ssize_t adt7316_store_update_DAC(struct device *dev, ldac_config = chip->ldac_config & (~ADT7316_LDAC_EN_DA_MASK); ldac_config |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, - ldac_config); + ret = regmap_write(chip->regmap, ADT7316_LDAC_CONFIG, + ldac_config); if (ret) return -EIO; } else { @@ -993,7 +994,7 @@ static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev, if (buf[0] == '1') dac_config |= ADT7316_VREF_BYPASS_DAC_AB; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -1038,7 +1039,7 @@ static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev, if (buf[0] == '1') dac_config |= ADT7316_VREF_BYPASS_DAC_CD; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -1098,8 +1099,7 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev, ldac_config = chip->ldac_config | ADT7316_DAC_IN_VREF; } - ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, - ldac_config); + ret = regmap_write(chip->regmap, ADT7316_LDAC_CONFIG, ldac_config); if (ret) return -EIO; @@ -1117,7 +1117,7 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, int channel, char *buf) { u16 data; - u8 msb, lsb; + unsigned int msb, lsb; char sign = ' '; int ret; @@ -1127,13 +1127,12 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, switch (channel) { case ADT7316_AD_SINGLE_CH_IN: - ret = chip->bus.read(chip->bus.client, - ADT7316_LSB_IN_TEMP_VDD, &lsb); + ret = regmap_read(chip->regmap, ADT7316_LSB_IN_TEMP_VDD, &lsb); if (ret) return -EIO; - ret = chip->bus.read(chip->bus.client, - ADT7316_AD_MSB_DATA_BASE + channel, &msb); + ret = regmap_read(chip->regmap, + ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; @@ -1141,14 +1140,12 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, data |= lsb & ADT7316_LSB_IN_TEMP_MASK; break; case ADT7316_AD_SINGLE_CH_VDD: - ret = chip->bus.read(chip->bus.client, - ADT7316_LSB_IN_TEMP_VDD, &lsb); + ret = regmap_read(chip->regmap, ADT7316_LSB_IN_TEMP_VDD, &lsb); if (ret) return -EIO; - ret = chip->bus.read(chip->bus.client, - - ADT7316_AD_MSB_DATA_BASE + channel, &msb); + ret = regmap_read(chip->regmap, + ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; @@ -1156,13 +1153,12 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET; return sprintf(buf, "%d\n", data); default: /* ex_temp and ain */ - ret = chip->bus.read(chip->bus.client, - ADT7316_LSB_EX_TEMP_AIN, &lsb); + ret = regmap_read(chip->regmap, ADT7316_LSB_EX_TEMP_AIN, &lsb); if (ret) return -EIO; - ret = chip->bus.read(chip->bus.client, - ADT7316_AD_MSB_DATA_BASE + channel, &msb); + ret = regmap_read(chip->regmap, + ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; @@ -1262,10 +1258,10 @@ static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip, int offset_addr, char *buf) { int data; - u8 val; + unsigned int val; int ret; - ret = chip->bus.read(chip->bus.client, offset_addr, &val); + ret = regmap_read(chip->regmap, offset_addr, &val); if (ret) return -EIO; @@ -1292,7 +1288,7 @@ static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip, val = (u8)data; - ret = chip->bus.write(chip->bus.client, offset_addr, val); + ret = regmap_write(chip->regmap, offset_addr, val); if (ret) return -EIO; @@ -1409,7 +1405,7 @@ static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip, int channel, char *buf) { u16 data; - u8 msb, lsb, offset; + unsigned int msb, lsb, offset; int ret; if (channel >= ADT7316_DA_MSB_DATA_REGS || @@ -1422,14 +1418,14 @@ static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip, offset = chip->dac_bits - 8; if (chip->dac_bits > 8) { - ret = chip->bus.read(chip->bus.client, - ADT7316_DA_DATA_BASE + channel * 2, &lsb); + ret = regmap_read(chip->regmap, + ADT7316_DA_DATA_BASE + channel * 2, &lsb); if (ret) return -EIO; } - ret = chip->bus.read(chip->bus.client, - ADT7316_DA_DATA_BASE + 1 + channel * 2, &msb); + ret = regmap_read(chip->regmap, ADT7316_DA_DATA_BASE + 1 + channel * 2, + &msb); if (ret) return -EIO; @@ -1460,15 +1456,15 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip, if (chip->dac_bits > 8) { lsb = data & (1 << offset); - ret = chip->bus.write(chip->bus.client, - ADT7316_DA_DATA_BASE + channel * 2, lsb); + ret = regmap_write(chip->regmap, + ADT7316_DA_DATA_BASE + channel * 2, lsb); if (ret) return -EIO; } msb = data >> offset; - ret = chip->bus.write(chip->bus.client, - ADT7316_DA_DATA_BASE + 1 + channel * 2, msb); + ret = regmap_write(chip->regmap, ADT7316_DA_DATA_BASE + 1 + channel * 2, + msb); if (ret) return -EIO; @@ -1577,10 +1573,10 @@ static ssize_t adt7316_show_device_id(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 id; + unsigned int id; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_ID, &id); + ret = regmap_read(chip->regmap, ADT7316_DEVICE_ID, &id); if (ret) return -EIO; @@ -1595,10 +1591,10 @@ static ssize_t adt7316_show_manufactorer_id(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 id; + unsigned int id; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_MANUFACTURE_ID, &id); + ret = regmap_read(chip->regmap, ADT7316_MANUFACTURE_ID, &id); if (ret) return -EIO; @@ -1614,10 +1610,10 @@ static ssize_t adt7316_show_device_rev(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 rev; + unsigned int rev; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_REV, &rev); + ret = regmap_read(chip->regmap, ADT7316_DEVICE_REV, &rev); if (ret) return -EIO; @@ -1632,10 +1628,10 @@ static ssize_t adt7316_show_bus_type(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 stat; + unsigned int stat; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_SPI_LOCK_STAT, &stat); + ret = regmap_read(chip->regmap, ADT7316_SPI_LOCK_STAT, &stat); if (ret) return -EIO; @@ -1740,11 +1736,11 @@ static irqreturn_t adt7316_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct adt7316_chip_info *chip = iio_priv(indio_dev); - u8 stat1, stat2; + unsigned int stat1, stat2; int ret; s64 time; - ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1); + ret = regmap_read(chip->regmap, ADT7316_INT_STAT1, &stat1); if (!ret) { if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) stat1 &= 0x1F; @@ -1793,7 +1789,7 @@ static irqreturn_t adt7316_event_handler(int irq, void *private) IIO_EV_DIR_EITHER), time); } - ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2); + ret = regmap_read(chip->regmap, ADT7316_INT_STAT2, &stat2); if (!ret) { if (stat2 & ADT7316_INT_MASK2_VDD) iio_push_event(indio_dev, @@ -1807,12 +1803,12 @@ static irqreturn_t adt7316_event_handler(int irq, void *private) return IRQ_HANDLED; } -static int adt7316_setup_irq(struct iio_dev *indio_dev) +static int adt7316_setup_irq(struct iio_dev *indio_dev, int irq) { struct adt7316_chip_info *chip = iio_priv(indio_dev); int irq_type, ret; - irq_type = irqd_get_trigger_type(irq_get_irq_data(chip->bus.irq)); + irq_type = irqd_get_trigger_type(irq_get_irq_data(irq)); switch (irq_type) { case IRQF_TRIGGER_HIGH: @@ -1828,13 +1824,12 @@ static int adt7316_setup_irq(struct iio_dev *indio_dev) break; } - ret = devm_request_threaded_irq(&indio_dev->dev, chip->bus.irq, + ret = devm_request_threaded_irq(&indio_dev->dev, irq, NULL, adt7316_event_handler, irq_type | IRQF_ONESHOT, indio_dev->name, indio_dev); if (ret) { - dev_err(&indio_dev->dev, "failed to request irq %d\n", - chip->bus.irq); + dev_err(&indio_dev->dev, "failed to request irq %d\n", irq); return ret; } @@ -1880,7 +1875,7 @@ static ssize_t adt7316_set_int_mask(struct device *dev, else mask = ADT7316_INT_MASK2_VDD; /* disable vdd int */ - ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK2, mask); + ret = regmap_write(chip->regmap, ADT7316_INT_MASK2, mask); if (!ret) { chip->int_mask &= ~ADT7316_VDD_INT_MASK; chip->int_mask |= data & ADT7316_VDD_INT_MASK; @@ -1894,7 +1889,7 @@ static ssize_t adt7316_set_int_mask(struct device *dev, /* mask in reg is opposite, set 1 to disable */ mask = (~data) & ADT7316_TEMP_AIN_INT_MASK; } - ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK1, mask); + ret = regmap_write(chip->regmap, ADT7316_INT_MASK1, mask); chip->int_mask = mask; @@ -1908,7 +1903,7 @@ static inline ssize_t adt7316_show_ad_bound(struct device *dev, struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 val; + unsigned int val; int data; int ret; @@ -1916,7 +1911,7 @@ static inline ssize_t adt7316_show_ad_bound(struct device *dev, this_attr->address > ADT7316_EX_TEMP_LOW) return -EPERM; - ret = chip->bus.read(chip->bus.client, this_attr->address, &val); + ret = regmap_read(chip->regmap, this_attr->address, &val); if (ret) return -EIO; @@ -1965,7 +1960,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev, val = (u8)data; - ret = chip->bus.write(chip->bus.client, this_attr->address, val); + ret = regmap_write(chip->regmap, this_attr->address, val); if (ret) return -EIO; @@ -1996,7 +1991,7 @@ static ssize_t adt7316_set_int_enabled(struct device *dev, if (buf[0] == '1') config1 |= ADT7316_INT_EN; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -2133,8 +2128,8 @@ static const struct iio_info adt7516_info = { /* * device probe and remove */ -int adt7316_probe(struct device *dev, struct adt7316_bus *bus, - const char *name) +int adt7316_probe(struct device *dev, struct regmap *regmap, const char *name, + int irq) { struct adt7316_chip_info *chip; struct iio_dev *indio_dev; @@ -2147,7 +2142,7 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, /* this is only used for device removal purposes */ dev_set_drvdata(dev, indio_dev); - chip->bus = *bus; + chip->regmap = regmap; if (name[4] == '3') chip->id = ID_ADT7316 + (name[6] - '6'); @@ -2180,17 +2175,17 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; - if (chip->bus.irq > 0) { - ret = adt7316_setup_irq(indio_dev); + if (irq > 0) { + ret = adt7316_setup_irq(indio_dev, irq); if (ret) return ret; } - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, chip->config1); if (ret) return -EIO; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, chip->config3); if (ret) return -EIO; diff --git a/drivers/staging/iio/addac/adt7316.h b/drivers/staging/iio/addac/adt7316.h index fd7c5c92b599..2c72cf3f71cd 100644 --- a/drivers/staging/iio/addac/adt7316.h +++ b/drivers/staging/iio/addac/adt7316.h @@ -11,16 +11,13 @@ #include <linux/types.h> #include <linux/pm.h> +#include <linux/regmap.h> #define ADT7316_REG_MAX_ADDR 0x3F -struct adt7316_bus { - void *client; - int irq; - int (*read)(void *client, u8 reg, u8 *data); - int (*write)(void *client, u8 reg, u8 val); - int (*multi_read)(void *client, u8 first_reg, u8 count, u8 *data); - int (*multi_write)(void *client, u8 first_reg, u8 count, u8 *data); +static const struct regmap_config adt7316_regmap_config = { + .reg_bits = 8, + .val_bits = 10, }; #ifdef CONFIG_PM_SLEEP @@ -29,7 +26,7 @@ extern const struct dev_pm_ops adt7316_pm_ops; #else #define ADT7316_PM_OPS NULL #endif -int adt7316_probe(struct device *dev, struct adt7316_bus *bus, - const char *name); +int adt7316_probe(struct device *dev, struct regmap *regmap, const char *name, + int irq); #endif -- 2.17.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel