From: Jonathan Cameron <jic23@kernel.org>
To: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jonathan Cameron <jic23@cam.ac.uk>,
linux-iio@vger.kernel.org, drivers@analog.com
Subject: Re: [PATCH 2/2] staging:iio: Consolidate adt7310 and adt7410 driver
Date: Wed, 31 Oct 2012 10:51:54 +0000 [thread overview]
Message-ID: <509102CA.3060204@kernel.org> (raw)
In-Reply-To: <1350898942-29586-2-git-send-email-lars@metafoo.de>
On 10/22/2012 10:42 AM, Lars-Peter Clausen wrote:
> The adt7310 is the SPI version of the adt7410, so there is no need to have a
> separate driver for it. The register map layout is a bit different, i.e. the
> addresses of the register differ, but the individual register layouts are
> identical. We solve this by adding a small look-up table, which translates
> adt7410 register addresses to ad7310 register addresses.
>
> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Nice work.
Added to togreg branch of iio.git
> ---
> drivers/staging/iio/adc/Kconfig | 13 +-
> drivers/staging/iio/adc/Makefile | 1 -
> drivers/staging/iio/adc/adt7310.c | 881 -------------------------------------
> drivers/staging/iio/adc/adt7410.c | 458 +++++++++++++++----
> 4 files changed, 364 insertions(+), 989 deletions(-)
> delete mode 100644 drivers/staging/iio/adc/adt7310.c
>
> diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
> index a525143..71a515d 100644
> --- a/drivers/staging/iio/adc/Kconfig
> +++ b/drivers/staging/iio/adc/Kconfig
> @@ -126,18 +126,11 @@ config AD7192
> To compile this driver as a module, choose M here: the
> module will be called ad7192.
>
> -config ADT7310
> - tristate "Analog Devices ADT7310 temperature sensor driver"
> - depends on SPI
> - help
> - Say yes here to build support for Analog Devices ADT7310
> - temperature sensors.
> -
> config ADT7410
> - tristate "Analog Devices ADT7410 temperature sensor driver"
> - depends on I2C
> + tristate "Analog Devices ADT7310/ADT7410 temperature sensor driver"
> + depends on I2C || SPI_MASTER
> help
> - Say yes here to build support for Analog Devices ADT7410
> + Say yes here to build support for Analog Devices ADT7310/ADT7410
> temperature sensors.
>
> config AD7280
> diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile
> index 62ee02e..ff561c5 100644
> --- a/drivers/staging/iio/adc/Makefile
> +++ b/drivers/staging/iio/adc/Makefile
> @@ -30,7 +30,6 @@ obj-$(CONFIG_AD7780) += ad7780.o
> obj-$(CONFIG_AD7793) += ad7793.o
> obj-$(CONFIG_AD7816) += ad7816.o
> obj-$(CONFIG_AD7192) += ad7192.o
> -obj-$(CONFIG_ADT7310) += adt7310.o
> obj-$(CONFIG_ADT7410) += adt7410.o
> obj-$(CONFIG_AD7280) += ad7280a.o
> obj-$(CONFIG_LPC32XX_ADC) += lpc32xx_adc.o
> diff --git a/drivers/staging/iio/adc/adt7310.c b/drivers/staging/iio/adc/adt7310.c
> deleted file mode 100644
> index 72460b6..0000000
> --- a/drivers/staging/iio/adc/adt7310.c
> +++ /dev/null
> @@ -1,881 +0,0 @@
> -/*
> - * ADT7310 digital temperature sensor driver supporting ADT7310
> - *
> - * Copyright 2010 Analog Devices Inc.
> - *
> - * Licensed under the GPL-2 or later.
> - */
> -
> -#include <linux/interrupt.h>
> -#include <linux/device.h>
> -#include <linux/kernel.h>
> -#include <linux/slab.h>
> -#include <linux/sysfs.h>
> -#include <linux/list.h>
> -#include <linux/spi/spi.h>
> -#include <linux/module.h>
> -
> -#include <linux/iio/iio.h>
> -#include <linux/iio/sysfs.h>
> -#include <linux/iio/events.h>
> -/*
> - * ADT7310 registers definition
> - */
> -
> -#define ADT7310_STATUS 0
> -#define ADT7310_CONFIG 1
> -#define ADT7310_TEMPERATURE 2
> -#define ADT7310_ID 3
> -#define ADT7310_T_CRIT 4
> -#define ADT7310_T_HYST 5
> -#define ADT7310_T_ALARM_HIGH 6
> -#define ADT7310_T_ALARM_LOW 7
> -
> -/*
> - * ADT7310 status
> - */
> -#define ADT7310_STAT_T_LOW 0x10
> -#define ADT7310_STAT_T_HIGH 0x20
> -#define ADT7310_STAT_T_CRIT 0x40
> -#define ADT7310_STAT_NOT_RDY 0x80
> -
> -/*
> - * ADT7310 config
> - */
> -#define ADT7310_FAULT_QUEUE_MASK 0x3
> -#define ADT7310_CT_POLARITY 0x4
> -#define ADT7310_INT_POLARITY 0x8
> -#define ADT7310_EVENT_MODE 0x10
> -#define ADT7310_MODE_MASK 0x60
> -#define ADT7310_ONESHOT 0x20
> -#define ADT7310_SPS 0x40
> -#define ADT7310_PD 0x60
> -#define ADT7310_RESOLUTION 0x80
> -
> -/*
> - * ADT7310 masks
> - */
> -#define ADT7310_T16_VALUE_SIGN 0x8000
> -#define ADT7310_T16_VALUE_FLOAT_OFFSET 7
> -#define ADT7310_T16_VALUE_FLOAT_MASK 0x7F
> -#define ADT7310_T13_VALUE_SIGN 0x1000
> -#define ADT7310_T13_VALUE_OFFSET 3
> -#define ADT7310_T13_VALUE_FLOAT_OFFSET 4
> -#define ADT7310_T13_VALUE_FLOAT_MASK 0xF
> -#define ADT7310_T_HYST_MASK 0xF
> -#define ADT7310_DEVICE_ID_MASK 0x7
> -#define ADT7310_MANUFACTORY_ID_MASK 0xF8
> -#define ADT7310_MANUFACTORY_ID_OFFSET 3
> -
> -
> -#define ADT7310_CMD_REG_MASK 0x28
> -#define ADT7310_CMD_REG_OFFSET 3
> -#define ADT7310_CMD_READ 0x40
> -#define ADT7310_CMD_CON_READ 0x4
> -
> -#define ADT7310_IRQS 2
> -
> -/*
> - * struct adt7310_chip_info - chip specifc information
> - */
> -
> -struct adt7310_chip_info {
> - struct spi_device *spi_dev;
> - u8 config;
> -};
> -
> -/*
> - * adt7310 register access by SPI
> - */
> -
> -static int adt7310_spi_read_word(struct adt7310_chip_info *chip, u8 reg, u16 *data)
> -{
> - struct spi_device *spi_dev = chip->spi_dev;
> - u8 command = (reg << ADT7310_CMD_REG_OFFSET) & ADT7310_CMD_REG_MASK;
> - int ret = 0;
> -
> - command |= ADT7310_CMD_READ;
> - ret = spi_write(spi_dev, &command, sizeof(command));
> - if (ret < 0) {
> - dev_err(&spi_dev->dev, "SPI write command error\n");
> - return ret;
> - }
> -
> - ret = spi_read(spi_dev, (u8 *)data, sizeof(*data));
> - if (ret < 0) {
> - dev_err(&spi_dev->dev, "SPI read word error\n");
> - return ret;
> - }
> -
> - *data = be16_to_cpu(*data);
> -
> - return 0;
> -}
> -
> -static int adt7310_spi_write_word(struct adt7310_chip_info *chip, u8 reg, u16 data)
> -{
> - struct spi_device *spi_dev = chip->spi_dev;
> - u8 buf[3];
> - int ret = 0;
> -
> - buf[0] = (reg << ADT7310_CMD_REG_OFFSET) & ADT7310_CMD_REG_MASK;
> - buf[1] = (u8)(data >> 8);
> - buf[2] = (u8)(data & 0xFF);
> -
> - ret = spi_write(spi_dev, buf, 3);
> - if (ret < 0) {
> - dev_err(&spi_dev->dev, "SPI write word error\n");
> - return ret;
> - }
> -
> - return ret;
> -}
> -
> -static int adt7310_spi_read_byte(struct adt7310_chip_info *chip, u8 reg, u8 *data)
> -{
> - struct spi_device *spi_dev = chip->spi_dev;
> - u8 command = (reg << ADT7310_CMD_REG_OFFSET) & ADT7310_CMD_REG_MASK;
> - int ret = 0;
> -
> - command |= ADT7310_CMD_READ;
> - ret = spi_write(spi_dev, &command, sizeof(command));
> - if (ret < 0) {
> - dev_err(&spi_dev->dev, "SPI write command error\n");
> - return ret;
> - }
> -
> - ret = spi_read(spi_dev, data, sizeof(*data));
> - if (ret < 0) {
> - dev_err(&spi_dev->dev, "SPI read byte error\n");
> - return ret;
> - }
> -
> - return 0;
> -}
> -
> -static int adt7310_spi_write_byte(struct adt7310_chip_info *chip, u8 reg, u8 data)
> -{
> - struct spi_device *spi_dev = chip->spi_dev;
> - u8 buf[2];
> - int ret = 0;
> -
> - buf[0] = (reg << ADT7310_CMD_REG_OFFSET) & ADT7310_CMD_REG_MASK;
> - buf[1] = data;
> -
> - ret = spi_write(spi_dev, buf, 2);
> - if (ret < 0) {
> - dev_err(&spi_dev->dev, "SPI write byte error\n");
> - return ret;
> - }
> -
> - return ret;
> -}
> -
> -static ssize_t adt7310_show_mode(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - u8 config;
> -
> - config = chip->config & ADT7310_MODE_MASK;
> -
> - switch (config) {
> - case ADT7310_PD:
> - return sprintf(buf, "power-down\n");
> - case ADT7310_ONESHOT:
> - return sprintf(buf, "one-shot\n");
> - case ADT7310_SPS:
> - return sprintf(buf, "sps\n");
> - default:
> - return sprintf(buf, "full\n");
> - }
> -}
> -
> -static ssize_t adt7310_store_mode(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - u16 config;
> - int ret;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - config = chip->config & (~ADT7310_MODE_MASK);
> - if (strcmp(buf, "power-down"))
> - config |= ADT7310_PD;
> - else if (strcmp(buf, "one-shot"))
> - config |= ADT7310_ONESHOT;
> - else if (strcmp(buf, "sps"))
> - config |= ADT7310_SPS;
> -
> - ret = adt7310_spi_write_byte(chip, ADT7310_CONFIG, config);
> - if (ret)
> - return -EIO;
> -
> - chip->config = config;
> -
> - return len;
> -}
> -
> -static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
> - adt7310_show_mode,
> - adt7310_store_mode,
> - 0);
> -
> -static ssize_t adt7310_show_available_modes(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - return sprintf(buf, "full\none-shot\nsps\npower-down\n");
> -}
> -
> -static IIO_DEVICE_ATTR(available_modes, S_IRUGO, adt7310_show_available_modes, NULL, 0);
> -
> -static ssize_t adt7310_show_resolution(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - int ret;
> - int bits;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - if (chip->config & ADT7310_RESOLUTION)
> - bits = 16;
> - else
> - bits = 13;
> -
> - return sprintf(buf, "%d bits\n", bits);
> -}
> -
> -static ssize_t adt7310_store_resolution(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - unsigned long data;
> - u16 config;
> - int ret;
> -
> - ret = strict_strtoul(buf, 10, &data);
> - if (ret)
> - return -EINVAL;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - config = chip->config & (~ADT7310_RESOLUTION);
> - if (data)
> - config |= ADT7310_RESOLUTION;
> -
> - ret = adt7310_spi_write_byte(chip, ADT7310_CONFIG, config);
> - if (ret)
> - return -EIO;
> -
> - chip->config = config;
> -
> - return len;
> -}
> -
> -static IIO_DEVICE_ATTR(resolution, S_IRUGO | S_IWUSR,
> - adt7310_show_resolution,
> - adt7310_store_resolution,
> - 0);
> -
> -static ssize_t adt7310_show_id(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - u8 id;
> - int ret;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_ID, &id);
> - if (ret)
> - return -EIO;
> -
> - return sprintf(buf, "device id: 0x%x\nmanufactory id: 0x%x\n",
> - id & ADT7310_DEVICE_ID_MASK,
> - (id & ADT7310_MANUFACTORY_ID_MASK) >> ADT7310_MANUFACTORY_ID_OFFSET);
> -}
> -
> -static IIO_DEVICE_ATTR(id, S_IRUGO | S_IWUSR,
> - adt7310_show_id,
> - NULL,
> - 0);
> -
> -static ssize_t adt7310_convert_temperature(struct adt7310_chip_info *chip,
> - u16 data, char *buf)
> -{
> - char sign = ' ';
> -
> - if (chip->config & ADT7310_RESOLUTION) {
> - if (data & ADT7310_T16_VALUE_SIGN) {
> - /* convert supplement to positive value */
> - data = (u16)((ADT7310_T16_VALUE_SIGN << 1) - (u32)data);
> - sign = '-';
> - }
> - return sprintf(buf, "%c%d.%.7d\n", sign,
> - (data >> ADT7310_T16_VALUE_FLOAT_OFFSET),
> - (data & ADT7310_T16_VALUE_FLOAT_MASK) * 78125);
> - } else {
> - if (data & ADT7310_T13_VALUE_SIGN) {
> - /* convert supplement to positive value */
> - data >>= ADT7310_T13_VALUE_OFFSET;
> - data = (ADT7310_T13_VALUE_SIGN << 1) - data;
> - sign = '-';
> - }
> - return sprintf(buf, "%c%d.%.4d\n", sign,
> - (data >> ADT7310_T13_VALUE_FLOAT_OFFSET),
> - (data & ADT7310_T13_VALUE_FLOAT_MASK) * 625);
> - }
> -}
> -
> -static ssize_t adt7310_show_value(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - u8 status;
> - u16 data;
> - int ret, i = 0;
> -
> - do {
> - ret = adt7310_spi_read_byte(chip, ADT7310_STATUS, &status);
> - if (ret)
> - return -EIO;
> - i++;
> - if (i == 10000)
> - return -EIO;
> - } while (status & ADT7310_STAT_NOT_RDY);
> -
> - ret = adt7310_spi_read_word(chip, ADT7310_TEMPERATURE, &data);
> - if (ret)
> - return -EIO;
> -
> - return adt7310_convert_temperature(chip, data, buf);
> -}
> -
> -static IIO_DEVICE_ATTR(value, S_IRUGO, adt7310_show_value, NULL, 0);
> -
> -static struct attribute *adt7310_attributes[] = {
> - &iio_dev_attr_available_modes.dev_attr.attr,
> - &iio_dev_attr_mode.dev_attr.attr,
> - &iio_dev_attr_resolution.dev_attr.attr,
> - &iio_dev_attr_id.dev_attr.attr,
> - &iio_dev_attr_value.dev_attr.attr,
> - NULL,
> -};
> -
> -static const struct attribute_group adt7310_attribute_group = {
> - .attrs = adt7310_attributes,
> -};
> -
> -static irqreturn_t adt7310_event_handler(int irq, void *private)
> -{
> - struct iio_dev *indio_dev = private;
> - struct adt7310_chip_info *chip = iio_priv(indio_dev);
> - s64 timestamp = iio_get_time_ns();
> - u8 status;
> - int ret;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_STATUS, &status);
> - if (ret)
> - goto done;
> -
> - if (status & ADT7310_STAT_T_HIGH)
> - iio_push_event(indio_dev,
> - IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> - IIO_EV_TYPE_THRESH,
> - IIO_EV_DIR_RISING),
> - timestamp);
> - if (status & ADT7310_STAT_T_LOW)
> - iio_push_event(indio_dev,
> - IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> - IIO_EV_TYPE_THRESH,
> - IIO_EV_DIR_FALLING),
> - timestamp);
> - if (status & ADT7310_STAT_T_CRIT)
> - iio_push_event(indio_dev,
> - IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
> - IIO_EV_TYPE_THRESH,
> - IIO_EV_DIR_RISING),
> - timestamp);
> -
> -done:
> - return IRQ_HANDLED;
> -}
> -
> -static ssize_t adt7310_show_event_mode(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - int ret;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - if (chip->config & ADT7310_EVENT_MODE)
> - return sprintf(buf, "interrupt\n");
> - else
> - return sprintf(buf, "comparator\n");
> -}
> -
> -static ssize_t adt7310_set_event_mode(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - u16 config;
> - int ret;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - config = chip->config &= ~ADT7310_EVENT_MODE;
> - if (strcmp(buf, "comparator") != 0)
> - config |= ADT7310_EVENT_MODE;
> -
> - ret = adt7310_spi_write_byte(chip, ADT7310_CONFIG, config);
> - if (ret)
> - return -EIO;
> -
> - chip->config = config;
> -
> - return len;
> -}
> -
> -static ssize_t adt7310_show_available_event_modes(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - return sprintf(buf, "comparator\ninterrupt\n");
> -}
> -
> -static ssize_t adt7310_show_fault_queue(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - int ret;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - return sprintf(buf, "%d\n", chip->config & ADT7310_FAULT_QUEUE_MASK);
> -}
> -
> -static ssize_t adt7310_set_fault_queue(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - unsigned long data;
> - int ret;
> - u8 config;
> -
> - ret = strict_strtoul(buf, 10, &data);
> - if (ret || data > 3)
> - return -EINVAL;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret)
> - return -EIO;
> -
> - config = chip->config & ~ADT7310_FAULT_QUEUE_MASK;
> - config |= data;
> - ret = adt7310_spi_write_byte(chip, ADT7310_CONFIG, config);
> - if (ret)
> - return -EIO;
> -
> - chip->config = config;
> -
> - return len;
> -}
> -
> -static inline ssize_t adt7310_show_t_bound(struct device *dev,
> - struct device_attribute *attr,
> - u8 bound_reg,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - u16 data;
> - int ret;
> -
> - ret = adt7310_spi_read_word(chip, bound_reg, &data);
> - if (ret)
> - return -EIO;
> -
> - return adt7310_convert_temperature(chip, data, buf);
> -}
> -
> -static inline ssize_t adt7310_set_t_bound(struct device *dev,
> - struct device_attribute *attr,
> - u8 bound_reg,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - long tmp1, tmp2;
> - u16 data;
> - char *pos;
> - int ret;
> -
> - pos = strchr(buf, '.');
> -
> - ret = strict_strtol(buf, 10, &tmp1);
> -
> - if (ret || tmp1 > 127 || tmp1 < -128)
> - return -EINVAL;
> -
> - if (pos) {
> - len = strlen(pos);
> -
> - if (chip->config & ADT7310_RESOLUTION) {
> - if (len > ADT7310_T16_VALUE_FLOAT_OFFSET)
> - len = ADT7310_T16_VALUE_FLOAT_OFFSET;
> - pos[len] = 0;
> - ret = strict_strtol(pos, 10, &tmp2);
> -
> - if (!ret)
> - tmp2 = (tmp2 / 78125) * 78125;
> - } else {
> - if (len > ADT7310_T13_VALUE_FLOAT_OFFSET)
> - len = ADT7310_T13_VALUE_FLOAT_OFFSET;
> - pos[len] = 0;
> - ret = strict_strtol(pos, 10, &tmp2);
> -
> - if (!ret)
> - tmp2 = (tmp2 / 625) * 625;
> - }
> - }
> -
> - if (tmp1 < 0)
> - data = (u16)(-tmp1);
> - else
> - data = (u16)tmp1;
> -
> - if (chip->config & ADT7310_RESOLUTION) {
> - data = (data << ADT7310_T16_VALUE_FLOAT_OFFSET) |
> - (tmp2 & ADT7310_T16_VALUE_FLOAT_MASK);
> -
> - if (tmp1 < 0)
> - /* convert positive value to supplyment */
> - data = (u16)((ADT7310_T16_VALUE_SIGN << 1) - (u32)data);
> - } else {
> - data = (data << ADT7310_T13_VALUE_FLOAT_OFFSET) |
> - (tmp2 & ADT7310_T13_VALUE_FLOAT_MASK);
> -
> - if (tmp1 < 0)
> - /* convert positive value to supplyment */
> - data = (ADT7310_T13_VALUE_SIGN << 1) - data;
> - data <<= ADT7310_T13_VALUE_OFFSET;
> - }
> -
> - ret = adt7310_spi_write_word(chip, bound_reg, data);
> - if (ret)
> - return -EIO;
> -
> - return len;
> -}
> -
> -static ssize_t adt7310_show_t_alarm_high(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - return adt7310_show_t_bound(dev, attr,
> - ADT7310_T_ALARM_HIGH, buf);
> -}
> -
> -static inline ssize_t adt7310_set_t_alarm_high(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - return adt7310_set_t_bound(dev, attr,
> - ADT7310_T_ALARM_HIGH, buf, len);
> -}
> -
> -static ssize_t adt7310_show_t_alarm_low(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - return adt7310_show_t_bound(dev, attr,
> - ADT7310_T_ALARM_LOW, buf);
> -}
> -
> -static inline ssize_t adt7310_set_t_alarm_low(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - return adt7310_set_t_bound(dev, attr,
> - ADT7310_T_ALARM_LOW, buf, len);
> -}
> -
> -static ssize_t adt7310_show_t_crit(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - return adt7310_show_t_bound(dev, attr,
> - ADT7310_T_CRIT, buf);
> -}
> -
> -static inline ssize_t adt7310_set_t_crit(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - return adt7310_set_t_bound(dev, attr,
> - ADT7310_T_CRIT, buf, len);
> -}
> -
> -static ssize_t adt7310_show_t_hyst(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - int ret;
> - u8 t_hyst;
> -
> - ret = adt7310_spi_read_byte(chip, ADT7310_T_HYST, &t_hyst);
> - if (ret)
> - return -EIO;
> -
> - return sprintf(buf, "%d\n", t_hyst & ADT7310_T_HYST_MASK);
> -}
> -
> -static inline ssize_t adt7310_set_t_hyst(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *dev_info = dev_to_iio_dev(dev);
> - struct adt7310_chip_info *chip = iio_priv(dev_info);
> - int ret;
> - unsigned long data;
> - u8 t_hyst;
> -
> - ret = strict_strtol(buf, 10, &data);
> -
> - if (ret || data > ADT7310_T_HYST_MASK)
> - return -EINVAL;
> -
> - t_hyst = (u8)data;
> -
> - ret = adt7310_spi_write_byte(chip, ADT7310_T_HYST, t_hyst);
> - if (ret)
> - return -EIO;
> -
> - return len;
> -}
> -
> -static IIO_DEVICE_ATTR(event_mode,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_event_mode, adt7310_set_event_mode, 0);
> -static IIO_DEVICE_ATTR(available_event_modes,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_available_event_modes, NULL, 0);
> -static IIO_DEVICE_ATTR(fault_queue,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_fault_queue, adt7310_set_fault_queue, 0);
> -static IIO_DEVICE_ATTR(t_alarm_high,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_t_alarm_high, adt7310_set_t_alarm_high, 0);
> -static IIO_DEVICE_ATTR(t_alarm_low,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_t_alarm_low, adt7310_set_t_alarm_low, 0);
> -static IIO_DEVICE_ATTR(t_crit,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_t_crit, adt7310_set_t_crit, 0);
> -static IIO_DEVICE_ATTR(t_hyst,
> - S_IRUGO | S_IWUSR,
> - adt7310_show_t_hyst, adt7310_set_t_hyst, 0);
> -
> -static struct attribute *adt7310_event_int_attributes[] = {
> - &iio_dev_attr_event_mode.dev_attr.attr,
> - &iio_dev_attr_available_event_modes.dev_attr.attr,
> - &iio_dev_attr_fault_queue.dev_attr.attr,
> - &iio_dev_attr_t_alarm_high.dev_attr.attr,
> - &iio_dev_attr_t_alarm_low.dev_attr.attr,
> - &iio_dev_attr_t_crit.dev_attr.attr,
> - &iio_dev_attr_t_hyst.dev_attr.attr,
> - NULL,
> -};
> -
> -static struct attribute_group adt7310_event_attribute_group = {
> - .attrs = adt7310_event_int_attributes,
> - .name = "events",
> -};
> -
> -static const struct iio_info adt7310_info = {
> - .attrs = &adt7310_attribute_group,
> - .event_attrs = &adt7310_event_attribute_group,
> - .driver_module = THIS_MODULE,
> -};
> -
> -/*
> - * device probe and remove
> - */
> -
> -static int __devinit adt7310_probe(struct spi_device *spi_dev)
> -{
> - struct adt7310_chip_info *chip;
> - struct iio_dev *indio_dev;
> - int ret = 0;
> - unsigned long *adt7310_platform_data = spi_dev->dev.platform_data;
> - unsigned long irq_flags;
> -
> - indio_dev = iio_device_alloc(sizeof(*chip));
> - if (indio_dev == NULL) {
> - ret = -ENOMEM;
> - goto error_ret;
> - }
> - chip = iio_priv(indio_dev);
> - /* this is only used for device removal purposes */
> - dev_set_drvdata(&spi_dev->dev, indio_dev);
> -
> - chip->spi_dev = spi_dev;
> -
> - indio_dev->dev.parent = &spi_dev->dev;
> - indio_dev->name = spi_get_device_id(spi_dev)->name;
> - indio_dev->info = &adt7310_info;
> - indio_dev->modes = INDIO_DIRECT_MODE;
> -
> - /* CT critcal temperature event. line 0 */
> - if (spi_dev->irq) {
> - if (adt7310_platform_data[2])
> - irq_flags = adt7310_platform_data[2];
> - else
> - irq_flags = IRQF_TRIGGER_LOW;
> - ret = request_threaded_irq(spi_dev->irq,
> - NULL,
> - &adt7310_event_handler,
> - irq_flags | IRQF_ONESHOT,
> - indio_dev->name,
> - indio_dev);
> - if (ret)
> - goto error_free_dev;
> - }
> -
> - /* INT bound temperature alarm event. line 1 */
> - if (adt7310_platform_data[0]) {
> - ret = request_threaded_irq(adt7310_platform_data[0],
> - NULL,
> - &adt7310_event_handler,
> - adt7310_platform_data[1] |
> - IRQF_ONESHOT,
> - indio_dev->name,
> - indio_dev);
> - if (ret)
> - goto error_unreg_ct_irq;
> - }
> -
> - if (spi_dev->irq && adt7310_platform_data[0]) {
> - ret = adt7310_spi_read_byte(chip, ADT7310_CONFIG, &chip->config);
> - if (ret) {
> - ret = -EIO;
> - goto error_unreg_int_irq;
> - }
> -
> - /* set irq polarity low level */
> - chip->config &= ~ADT7310_CT_POLARITY;
> -
> - if (adt7310_platform_data[1] & IRQF_TRIGGER_HIGH)
> - chip->config |= ADT7310_INT_POLARITY;
> - else
> - chip->config &= ~ADT7310_INT_POLARITY;
> -
> - ret = adt7310_spi_write_byte(chip, ADT7310_CONFIG, chip->config);
> - if (ret) {
> - ret = -EIO;
> - goto error_unreg_int_irq;
> - }
> - }
> -
> - ret = iio_device_register(indio_dev);
> - if (ret)
> - goto error_unreg_int_irq;
> -
> - dev_info(&spi_dev->dev, "%s temperature sensor registered.\n",
> - indio_dev->name);
> -
> - return 0;
> -
> -error_unreg_int_irq:
> - free_irq(adt7310_platform_data[0], indio_dev);
> -error_unreg_ct_irq:
> - free_irq(spi_dev->irq, indio_dev);
> -error_free_dev:
> - iio_device_free(indio_dev);
> -error_ret:
> - return ret;
> -}
> -
> -static int __devexit adt7310_remove(struct spi_device *spi_dev)
> -{
> - struct iio_dev *indio_dev = dev_get_drvdata(&spi_dev->dev);
> - unsigned long *adt7310_platform_data = spi_dev->dev.platform_data;
> -
> - iio_device_unregister(indio_dev);
> - dev_set_drvdata(&spi_dev->dev, NULL);
> - if (adt7310_platform_data[0])
> - free_irq(adt7310_platform_data[0], indio_dev);
> - if (spi_dev->irq)
> - free_irq(spi_dev->irq, indio_dev);
> - iio_device_free(indio_dev);
> -
> - return 0;
> -}
> -
> -static const struct spi_device_id adt7310_id[] = {
> - { "adt7310", 0 },
> - {}
> -};
> -
> -MODULE_DEVICE_TABLE(spi, adt7310_id);
> -
> -static struct spi_driver adt7310_driver = {
> - .driver = {
> - .name = "adt7310",
> - .owner = THIS_MODULE,
> - },
> - .probe = adt7310_probe,
> - .remove = __devexit_p(adt7310_remove),
> - .id_table = adt7310_id,
> -};
> -module_spi_driver(adt7310_driver);
> -
> -MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
> -MODULE_DESCRIPTION("Analog Devices ADT7310 digital"
> - " temperature sensor driver");
> -MODULE_LICENSE("GPL v2");
> diff --git a/drivers/staging/iio/adc/adt7410.c b/drivers/staging/iio/adc/adt7410.c
> index 3cf5103..6493cd0 100644
> --- a/drivers/staging/iio/adc/adt7410.c
> +++ b/drivers/staging/iio/adc/adt7410.c
> @@ -1,5 +1,5 @@
> /*
> - * ADT7410 digital temperature sensor driver supporting ADT7410
> + * ADT7410 digital temperature sensor driver supporting ADT7310/ADT7410
> *
> * Copyright 2010 Analog Devices Inc.
> *
> @@ -13,6 +13,7 @@
> #include <linux/sysfs.h>
> #include <linux/list.h>
> #include <linux/i2c.h>
> +#include <linux/spi/spi.h>
> #include <linux/module.h>
>
> #include <linux/iio/iio.h>
> @@ -34,6 +35,19 @@
> #define ADT7410_RESET 0x2F
>
> /*
> + * ADT7310 registers definition
> + */
> +
> +#define ADT7310_STATUS 0
> +#define ADT7310_CONFIG 1
> +#define ADT7310_TEMPERATURE 2
> +#define ADT7310_ID 3
> +#define ADT7310_T_CRIT 4
> +#define ADT7310_T_HYST 5
> +#define ADT7310_T_ALARM_HIGH 6
> +#define ADT7310_T_ALARM_LOW 7
> +
> +/*
> * ADT7410 status
> */
> #define ADT7410_STAT_T_LOW 0x10
> @@ -69,75 +83,52 @@
> #define ADT7410_MANUFACTORY_ID_MASK 0xF0
> #define ADT7410_MANUFACTORY_ID_OFFSET 4
>
> +
> +#define ADT7310_CMD_REG_MASK 0x28
> +#define ADT7310_CMD_REG_OFFSET 3
> +#define ADT7310_CMD_READ 0x40
> +#define ADT7310_CMD_CON_READ 0x4
> +
> #define ADT7410_IRQS 2
>
> /*
> * struct adt7410_chip_info - chip specifc information
> */
>
> +struct adt7410_chip_info;
> +
> +struct adt7410_ops {
> + int (*read_word)(struct adt7410_chip_info *, u8 reg, u16 *data);
> + int (*write_word)(struct adt7410_chip_info *, u8 reg, u16 data);
> + int (*read_byte)(struct adt7410_chip_info *, u8 reg, u8 *data);
> + int (*write_byte)(struct adt7410_chip_info *, u8 reg, u8 data);
> +};
> +
> struct adt7410_chip_info {
> - struct i2c_client *client;
> + struct device *dev;
> u8 config;
> -};
>
> -/*
> - * adt7410 register access by I2C
> - */
> + const struct adt7410_ops *ops;
> +};
>
> -static int adt7410_i2c_read_word(struct adt7410_chip_info *chip, u8 reg, u16 *data)
> +static int adt7410_read_word(struct adt7410_chip_info *chip, u8 reg, u16 *data)
> {
> - struct i2c_client *client = chip->client;
> - int ret = 0;
> -
> - ret = i2c_smbus_read_word_data(client, reg);
> - if (ret < 0) {
> - dev_err(&client->dev, "I2C read error\n");
> - return ret;
> - }
> -
> - *data = swab16((u16)ret);
> -
> - return 0;
> + return chip->ops->read_word(chip, reg, data);
> }
>
> -static int adt7410_i2c_write_word(struct adt7410_chip_info *chip, u8 reg, u16 data)
> +static int adt7410_write_word(struct adt7410_chip_info *chip, u8 reg, u16 data)
> {
> - struct i2c_client *client = chip->client;
> - int ret = 0;
> -
> - ret = i2c_smbus_write_word_data(client, reg, swab16(data));
> - if (ret < 0)
> - dev_err(&client->dev, "I2C write error\n");
> -
> - return ret;
> + return chip->ops->write_word(chip, reg, data);
> }
>
> -static int adt7410_i2c_read_byte(struct adt7410_chip_info *chip, u8 reg, u8 *data)
> +static int adt7410_read_byte(struct adt7410_chip_info *chip, u8 reg, u8 *data)
> {
> - struct i2c_client *client = chip->client;
> - int ret = 0;
> -
> - ret = i2c_smbus_read_byte_data(client, reg);
> - if (ret < 0) {
> - dev_err(&client->dev, "I2C read error\n");
> - return ret;
> - }
> -
> - *data = (u8)ret;
> -
> - return 0;
> + return chip->ops->read_byte(chip, reg, data);
> }
>
> -static int adt7410_i2c_write_byte(struct adt7410_chip_info *chip, u8 reg, u8 data)
> +static int adt7410_write_byte(struct adt7410_chip_info *chip, u8 reg, u8 data)
> {
> - struct i2c_client *client = chip->client;
> - int ret = 0;
> -
> - ret = i2c_smbus_write_byte_data(client, reg, data);
> - if (ret < 0)
> - dev_err(&client->dev, "I2C write error\n");
> -
> - return ret;
> + return chip->ops->write_byte(chip, reg, data);
> }
>
> static ssize_t adt7410_show_mode(struct device *dev,
> @@ -172,7 +163,7 @@ static ssize_t adt7410_store_mode(struct device *dev,
> u16 config;
> int ret;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> @@ -184,7 +175,7 @@ static ssize_t adt7410_store_mode(struct device *dev,
> else if (strcmp(buf, "sps"))
> config |= ADT7410_SPS;
>
> - ret = adt7410_i2c_write_byte(chip, ADT7410_CONFIG, config);
> + ret = adt7410_write_byte(chip, ADT7410_CONFIG, config);
> if (ret)
> return -EIO;
>
> @@ -216,7 +207,7 @@ static ssize_t adt7410_show_resolution(struct device *dev,
> int ret;
> int bits;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> @@ -243,7 +234,7 @@ static ssize_t adt7410_store_resolution(struct device *dev,
> if (ret)
> return -EINVAL;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> @@ -251,7 +242,7 @@ static ssize_t adt7410_store_resolution(struct device *dev,
> if (data)
> config |= ADT7410_RESOLUTION;
>
> - ret = adt7410_i2c_write_byte(chip, ADT7410_CONFIG, config);
> + ret = adt7410_write_byte(chip, ADT7410_CONFIG, config);
> if (ret)
> return -EIO;
>
> @@ -274,7 +265,7 @@ static ssize_t adt7410_show_id(struct device *dev,
> u8 id;
> int ret;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_ID, &id);
> + ret = adt7410_read_byte(chip, ADT7410_ID, &id);
> if (ret)
> return -EIO;
>
> @@ -317,7 +308,7 @@ static ssize_t adt7410_show_value(struct device *dev,
> int ret, i = 0;
>
> do {
> - ret = adt7410_i2c_read_byte(chip, ADT7410_STATUS, &status);
> + ret = adt7410_read_byte(chip, ADT7410_STATUS, &status);
> if (ret)
> return -EIO;
> i++;
> @@ -325,7 +316,7 @@ static ssize_t adt7410_show_value(struct device *dev,
> return -EIO;
> } while (status & ADT7410_STAT_NOT_RDY);
>
> - ret = adt7410_i2c_read_word(chip, ADT7410_TEMPERATURE, &data);
> + ret = adt7410_read_word(chip, ADT7410_TEMPERATURE, &data);
> if (ret)
> return -EIO;
>
> @@ -354,7 +345,7 @@ static irqreturn_t adt7410_event_handler(int irq, void *private)
> s64 timestamp = iio_get_time_ns();
> u8 status;
>
> - if (adt7410_i2c_read_byte(chip, ADT7410_STATUS, &status))
> + if (adt7410_read_byte(chip, ADT7410_STATUS, &status))
> return IRQ_HANDLED;
>
> if (status & ADT7410_STAT_T_HIGH)
> @@ -387,7 +378,7 @@ static ssize_t adt7410_show_event_mode(struct device *dev,
> struct adt7410_chip_info *chip = iio_priv(dev_info);
> int ret;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> @@ -407,7 +398,7 @@ static ssize_t adt7410_set_event_mode(struct device *dev,
> u16 config;
> int ret;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> @@ -415,7 +406,7 @@ static ssize_t adt7410_set_event_mode(struct device *dev,
> if (strcmp(buf, "comparator") != 0)
> config |= ADT7410_EVENT_MODE;
>
> - ret = adt7410_i2c_write_byte(chip, ADT7410_CONFIG, config);
> + ret = adt7410_write_byte(chip, ADT7410_CONFIG, config);
> if (ret)
> return -EIO;
>
> @@ -439,7 +430,7 @@ static ssize_t adt7410_show_fault_queue(struct device *dev,
> struct adt7410_chip_info *chip = iio_priv(dev_info);
> int ret;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> @@ -461,13 +452,13 @@ static ssize_t adt7410_set_fault_queue(struct device *dev,
> if (ret || data > 3)
> return -EINVAL;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret)
> return -EIO;
>
> config = chip->config & ~ADT7410_FAULT_QUEUE_MASK;
> config |= data;
> - ret = adt7410_i2c_write_byte(chip, ADT7410_CONFIG, config);
> + ret = adt7410_write_byte(chip, ADT7410_CONFIG, config);
> if (ret)
> return -EIO;
>
> @@ -486,7 +477,7 @@ static inline ssize_t adt7410_show_t_bound(struct device *dev,
> u16 data;
> int ret;
>
> - ret = adt7410_i2c_read_word(chip, bound_reg, &data);
> + ret = adt7410_read_word(chip, bound_reg, &data);
> if (ret)
> return -EIO;
>
> @@ -557,7 +548,7 @@ static inline ssize_t adt7410_set_t_bound(struct device *dev,
> data <<= ADT7410_T13_VALUE_OFFSET;
> }
>
> - ret = adt7410_i2c_write_word(chip, bound_reg, data);
> + ret = adt7410_write_word(chip, bound_reg, data);
> if (ret)
> return -EIO;
>
> @@ -624,7 +615,7 @@ static ssize_t adt7410_show_t_hyst(struct device *dev,
> int ret;
> u8 t_hyst;
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_T_HYST, &t_hyst);
> + ret = adt7410_read_byte(chip, ADT7410_T_HYST, &t_hyst);
> if (ret)
> return -EIO;
>
> @@ -649,7 +640,7 @@ static inline ssize_t adt7410_set_t_hyst(struct device *dev,
>
> t_hyst = (u8)data;
>
> - ret = adt7410_i2c_write_byte(chip, ADT7410_T_HYST, t_hyst);
> + ret = adt7410_write_byte(chip, ADT7410_T_HYST, t_hyst);
> if (ret)
> return -EIO;
>
> @@ -704,14 +695,14 @@ static const struct iio_info adt7410_info = {
> * device probe and remove
> */
>
> -static int __devinit adt7410_probe(struct i2c_client *client,
> - const struct i2c_device_id *id)
> +static int __devinit adt7410_probe(struct device *dev, int irq,
> + const char *name, const struct adt7410_ops *ops)
> {
> + unsigned long *adt7410_platform_data = dev->platform_data;
> + unsigned long local_pdata[] = {0, 0};
> struct adt7410_chip_info *chip;
> struct iio_dev *indio_dev;
> int ret = 0;
> - unsigned long *adt7410_platform_data = client->dev.platform_data;
> - unsigned long local_pdata[] = {0, 0};
>
> indio_dev = iio_device_alloc(sizeof(*chip));
> if (indio_dev == NULL) {
> @@ -720,12 +711,13 @@ static int __devinit adt7410_probe(struct i2c_client *client,
> }
> chip = iio_priv(indio_dev);
> /* this is only used for device removal purposes */
> - i2c_set_clientdata(client, indio_dev);
> + dev_set_drvdata(dev, indio_dev);
>
> - chip->client = client;
> + chip->dev = dev;
> + chip->ops = ops;
>
> - indio_dev->name = id->name;
> - indio_dev->dev.parent = &client->dev;
> + indio_dev->name = name;
> + indio_dev->dev.parent = dev;
> indio_dev->info = &adt7410_info;
> indio_dev->modes = INDIO_DIRECT_MODE;
>
> @@ -733,12 +725,12 @@ static int __devinit adt7410_probe(struct i2c_client *client,
> adt7410_platform_data = local_pdata;
>
> /* CT critcal temperature event. line 0 */
> - if (client->irq) {
> - ret = request_threaded_irq(client->irq,
> + if (irq) {
> + ret = request_threaded_irq(irq,
> NULL,
> &adt7410_event_handler,
> IRQF_TRIGGER_LOW | IRQF_ONESHOT,
> - id->name,
> + name,
> indio_dev);
> if (ret)
> goto error_free_dev;
> @@ -751,13 +743,13 @@ static int __devinit adt7410_probe(struct i2c_client *client,
> &adt7410_event_handler,
> adt7410_platform_data[1] |
> IRQF_ONESHOT,
> - id->name,
> + name,
> indio_dev);
> if (ret)
> goto error_unreg_ct_irq;
> }
>
> - ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config);
> + ret = adt7410_read_byte(chip, ADT7410_CONFIG, &chip->config);
> if (ret) {
> ret = -EIO;
> goto error_unreg_int_irq;
> @@ -765,7 +757,7 @@ static int __devinit adt7410_probe(struct i2c_client *client,
>
> chip->config |= ADT7410_RESOLUTION;
>
> - if (client->irq && adt7410_platform_data[0]) {
> + if (irq && adt7410_platform_data[0]) {
>
> /* set irq polarity low level */
> chip->config &= ~ADT7410_CT_POLARITY;
> @@ -776,7 +768,7 @@ static int __devinit adt7410_probe(struct i2c_client *client,
> chip->config &= ~ADT7410_INT_POLARITY;
> }
>
> - ret = adt7410_i2c_write_byte(chip, ADT7410_CONFIG, chip->config);
> + ret = adt7410_write_byte(chip, ADT7410_CONFIG, chip->config);
> if (ret) {
> ret = -EIO;
> goto error_unreg_int_irq;
> @@ -785,36 +777,117 @@ static int __devinit adt7410_probe(struct i2c_client *client,
> if (ret)
> goto error_unreg_int_irq;
>
> - dev_info(&client->dev, "%s temperature sensor registered.\n",
> - id->name);
> + dev_info(dev, "%s temperature sensor registered.\n",
> + name);
>
> return 0;
>
> error_unreg_int_irq:
> free_irq(adt7410_platform_data[0], indio_dev);
> error_unreg_ct_irq:
> - free_irq(client->irq, indio_dev);
> + free_irq(irq, indio_dev);
> error_free_dev:
> iio_device_free(indio_dev);
> error_ret:
> return ret;
> }
>
> -static int __devexit adt7410_remove(struct i2c_client *client)
> +static int __devexit adt7410_remove(struct device *dev, int irq)
> {
> - struct iio_dev *indio_dev = i2c_get_clientdata(client);
> - unsigned long *adt7410_platform_data = client->dev.platform_data;
> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> + unsigned long *adt7410_platform_data = dev->platform_data;
>
> iio_device_unregister(indio_dev);
> if (adt7410_platform_data[0])
> free_irq(adt7410_platform_data[0], indio_dev);
> - if (client->irq)
> - free_irq(client->irq, indio_dev);
> + if (irq)
> + free_irq(irq, indio_dev);
> iio_device_free(indio_dev);
>
> return 0;
> }
>
> +#if IS_ENABLED(CONFIG_I2C)
> +
> +static int adt7410_i2c_read_word(struct adt7410_chip_info *chip, u8 reg,
> + u16 *data)
> +{
> + struct i2c_client *client = to_i2c_client(chip->dev);
> + int ret = 0;
> +
> + ret = i2c_smbus_read_word_data(client, reg);
> + if (ret < 0) {
> + dev_err(&client->dev, "I2C read error\n");
> + return ret;
> + }
> +
> + *data = swab16((u16)ret);
> +
> + return 0;
> +}
> +
> +static int adt7410_i2c_write_word(struct adt7410_chip_info *chip, u8 reg,
> + u16 data)
> +{
> + struct i2c_client *client = to_i2c_client(chip->dev);
> + int ret = 0;
> +
> + ret = i2c_smbus_write_word_data(client, reg, swab16(data));
> + if (ret < 0)
> + dev_err(&client->dev, "I2C write error\n");
> +
> + return ret;
> +}
> +
> +static int adt7410_i2c_read_byte(struct adt7410_chip_info *chip, u8 reg,
> + u8 *data)
> +{
> + struct i2c_client *client = to_i2c_client(chip->dev);
> + int ret = 0;
> +
> + ret = i2c_smbus_read_byte_data(client, reg);
> + if (ret < 0) {
> + dev_err(&client->dev, "I2C read error\n");
> + return ret;
> + }
> +
> + *data = (u8)ret;
> +
> + return 0;
> +}
> +
> +static int adt7410_i2c_write_byte(struct adt7410_chip_info *chip, u8 reg,
> + u8 data)
> +{
> + struct i2c_client *client = to_i2c_client(chip->dev);
> + int ret = 0;
> +
> + ret = i2c_smbus_write_byte_data(client, reg, data);
> + if (ret < 0)
> + dev_err(&client->dev, "I2C write error\n");
> +
> + return ret;
> +}
> +
> +static const struct adt7410_ops adt7410_i2c_ops = {
> + .read_word = adt7410_i2c_read_word,
> + .write_word = adt7410_i2c_write_word,
> + .read_byte = adt7410_i2c_read_byte,
> + .write_byte = adt7410_i2c_write_byte,
> +};
> +
> +static int __devinit adt7410_i2c_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + return adt7410_probe(&client->dev, client->irq, id->name,
> + &adt7410_i2c_ops);
> +}
> +
> +static int __devexit adt7410_i2c_remove(struct i2c_client *client)
> +{
> + return adt7410_remove(&client->dev, client->irq);
> +}
> +
> static const struct i2c_device_id adt7410_id[] = {
> { "adt7410", 0 },
> {}
> @@ -826,13 +899,204 @@ static struct i2c_driver adt7410_driver = {
> .driver = {
> .name = "adt7410",
> },
> - .probe = adt7410_probe,
> - .remove = __devexit_p(adt7410_remove),
> + .probe = adt7410_i2c_probe,
> + .remove = __devexit_p(adt7410_i2c_remove),
> .id_table = adt7410_id,
> };
> -module_i2c_driver(adt7410_driver);
> +
> +static int __init adt7410_i2c_init(void)
> +{
> + return i2c_add_driver(&adt7410_driver);
> +}
> +
> +static void __exit adt7410_i2c_exit(void)
> +{
> + i2c_del_driver(&adt7410_driver);
> +}
> +
> +#else
> +
> +static int __init adt7410_i2c_init(void) { return 0; };
> +static void __exit adt7410_i2c_exit(void) {};
> +
> +#endif
> +
> +#if IS_ENABLED(CONFIG_SPI_MASTER)
> +
> +static const u8 adt7371_reg_table[] = {
> + [ADT7410_TEMPERATURE] = ADT7310_TEMPERATURE,
> + [ADT7410_STATUS] = ADT7310_STATUS,
> + [ADT7410_CONFIG] = ADT7310_CONFIG,
> + [ADT7410_T_ALARM_HIGH] = ADT7310_T_ALARM_HIGH,
> + [ADT7410_T_ALARM_LOW] = ADT7310_T_ALARM_LOW,
> + [ADT7410_T_CRIT] = ADT7310_T_CRIT,
> + [ADT7410_T_HYST] = ADT7310_T_HYST,
> + [ADT7410_ID] = ADT7310_ID,
> +};
> +
> +#define AD7310_COMMAND(reg) (adt7371_reg_table[(reg)] << ADT7310_CMD_REG_OFFSET)
> +
> +static int adt7310_spi_read_word(struct adt7410_chip_info *chip,
> + u8 reg, u16 *data)
> +{
> + struct spi_device *spi = to_spi_device(chip->dev);
> + u8 command = AD7310_COMMAND(reg);
> + int ret = 0;
> +
> + command |= ADT7310_CMD_READ;
> + ret = spi_write(spi, &command, sizeof(command));
> + if (ret < 0) {
> + dev_err(&spi->dev, "SPI write command error\n");
> + return ret;
> + }
> +
> + ret = spi_read(spi, (u8 *)data, sizeof(*data));
> + if (ret < 0) {
> + dev_err(&spi->dev, "SPI read word error\n");
> + return ret;
> + }
> +
> + *data = be16_to_cpu(*data);
> +
> + return 0;
> +}
> +
> +static int adt7310_spi_write_word(struct adt7410_chip_info *chip, u8 reg,
> + u16 data)
> +{
> + struct spi_device *spi = to_spi_device(chip->dev);
> + u8 buf[3];
> + int ret = 0;
> +
> + buf[0] = AD7310_COMMAND(reg);
> + buf[1] = (u8)(data >> 8);
> + buf[2] = (u8)(data & 0xFF);
> +
> + ret = spi_write(spi, buf, 3);
> + if (ret < 0) {
> + dev_err(&spi->dev, "SPI write word error\n");
> + return ret;
> + }
> +
> + return ret;
> +}
> +
> +static int adt7310_spi_read_byte(struct adt7410_chip_info *chip, u8 reg,
> + u8 *data)
> +{
> + struct spi_device *spi = to_spi_device(chip->dev);
> + u8 command = AD7310_COMMAND(reg);
> + int ret = 0;
> +
> + command |= ADT7310_CMD_READ;
> + ret = spi_write(spi, &command, sizeof(command));
> + if (ret < 0) {
> + dev_err(&spi->dev, "SPI write command error\n");
> + return ret;
> + }
> +
> + ret = spi_read(spi, data, sizeof(*data));
> + if (ret < 0) {
> + dev_err(&spi->dev, "SPI read byte error\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int adt7310_spi_write_byte(struct adt7410_chip_info *chip, u8 reg,
> + u8 data)
> +{
> + struct spi_device *spi = to_spi_device(chip->dev);
> + u8 buf[2];
> + int ret = 0;
> +
> + buf[0] = AD7310_COMMAND(reg);
> + buf[1] = data;
> +
> + ret = spi_write(spi, buf, 2);
> + if (ret < 0) {
> + dev_err(&spi->dev, "SPI write byte error\n");
> + return ret;
> + }
> +
> + return ret;
> +}
> +
> +static const struct adt7410_ops adt7310_spi_ops = {
> + .read_word = adt7310_spi_read_word,
> + .write_word = adt7310_spi_write_word,
> + .read_byte = adt7310_spi_read_byte,
> + .write_byte = adt7310_spi_write_byte,
> +};
> +
> +static int __devinit adt7310_spi_probe(struct spi_device *spi)
> +{
> + return adt7410_probe(&spi->dev, spi->irq,
> + spi_get_device_id(spi)->name, &adt7310_spi_ops);
> +}
> +
> +static int __devexit adt7310_spi_remove(struct spi_device *spi)
> +{
> + return adt7410_remove(&spi->dev, spi->irq);
> +}
> +
> +static const struct spi_device_id adt7310_id[] = {
> + { "adt7310", 0 },
> + {}
> +};
> +MODULE_DEVICE_TABLE(spi, adt7310_id);
> +
> +static struct spi_driver adt7310_driver = {
> + .driver = {
> + .name = "adt7310",
> + .owner = THIS_MODULE,
> + },
> + .probe = adt7310_spi_probe,
> + .remove = __devexit_p(adt7310_spi_remove),
> + .id_table = adt7310_id,
> +};
> +
> +static int __init adt7310_spi_init(void)
> +{
> + return spi_register_driver(&adt7310_driver);
> +}
> +
> +static void adt7310_spi_exit(void)
> +{
> + spi_unregister_driver(&adt7310_driver);
> +}
> +
> +#else
> +
> +static int __init adt7310_spi_init(void) { return 0; };
> +static void adt7310_spi_exit(void) {};
> +
> +#endif
> +
> +static int __init adt7410_init(void)
> +{
> + int ret;
> +
> + ret = adt7310_spi_init();
> + if (ret)
> + return ret;
> +
> + ret = adt7410_i2c_init();
> + if (ret)
> + adt7310_spi_exit();
> +
> + return ret;
> +}
> +module_init(adt7410_init);
> +
> +static void __exit adt7410_exit(void)
> +{
> + adt7410_i2c_exit();
> + adt7310_spi_exit();
> +}
> +module_exit(adt7410_exit);
>
> MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
> -MODULE_DESCRIPTION("Analog Devices ADT7410 digital"
> - " temperature sensor driver");
> +MODULE_DESCRIPTION("Analog Devices ADT7310/ADT7410 digital temperature sensor driver");
> MODULE_LICENSE("GPL v2");
>
next prev parent reply other threads:[~2012-10-31 10:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-22 9:42 [PATCH 1/2] staging:iio:adt7410: Fix adt7410_set_mode return value Lars-Peter Clausen
2012-10-22 9:42 ` [PATCH 2/2] staging:iio: Consolidate adt7310 and adt7410 driver Lars-Peter Clausen
2012-10-31 10:51 ` Jonathan Cameron [this message]
2012-10-31 10:50 ` [PATCH 1/2] staging:iio:adt7410: Fix adt7410_set_mode return value Jonathan Cameron
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