On Sat, 12 May 2018 18:51:02 +0100
Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> wrote:
> I announced the intent to drop some of these meter drivers
> on the IIO list last cycle. This device is obsolete and not easily
> obtained. No one has come forward with suitable test hardware and
> the driver would need a lot of work to move out of staging.
>
> As such I am dropping it. We can always bring it back again
> if a user / tester emerges in the future.
>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Applied
> ---
> drivers/staging/iio/meter/Kconfig | 10 -
> drivers/staging/iio/meter/Makefile | 2 -
> drivers/staging/iio/meter/ade7754.c | 664 ----------------------------
> 3 files changed, 676 deletions(-)
>
> diff --git a/drivers/staging/iio/meter/Kconfig b/drivers/staging/iio/meter/Kconfig
> index 62db8d6498f5..d60f052415c8 100644
> --- a/drivers/staging/iio/meter/Kconfig
> +++ b/drivers/staging/iio/meter/Kconfig
> @@ -3,16 +3,6 @@
> #
> menu "Active energy metering IC"
>
> -config ADE7754
> - tristate "Analog Devices ADE7754 Polyphase Multifunction Energy Metering IC Driver"
> - depends on SPI
> - help
> - Say yes here to build support for Analog Devices ADE7754 Polyphase
> - Multifunction Energy Metering IC Driver.
> -
> - To compile this driver as a module, choose M here: the
> - module will be called ade7754.
> -
> config ADE7758
> tristate "Analog Devices ADE7758 Poly Phase Multifunction Energy Metering IC Driver"
> depends on SPI
> diff --git a/drivers/staging/iio/meter/Makefile b/drivers/staging/iio/meter/Makefile
> index 8b2592b32845..42f4157969de 100644
> --- a/drivers/staging/iio/meter/Makefile
> +++ b/drivers/staging/iio/meter/Makefile
> @@ -3,8 +3,6 @@
> # Makefile for metering ic drivers
> #
>
> -obj-$(CONFIG_ADE7754) += ade7754.o
> -
> ade7758-y := ade7758_core.o
> ade7758-$(CONFIG_IIO_BUFFER) += ade7758_ring.o ade7758_trigger.o
> obj-$(CONFIG_ADE7758) += ade7758.o
> diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
> deleted file mode 100644
> index 9aa067736715..000000000000
> --- a/drivers/staging/iio/meter/ade7754.c
> +++ /dev/null
> @@ -1,664 +0,0 @@
> -/*
> - * ADE7754 Polyphase Multifunction Energy Metering IC Driver
> - *
> - * Copyright 2010 Analog Devices Inc.
> - *
> - * Licensed under the GPL-2 or later.
> - */
> -
> -#include <linux/delay.h>
> -#include <linux/device.h>
> -#include <linux/interrupt.h>
> -#include <linux/irq.h>
> -#include <linux/kernel.h>
> -#include <linux/list.h>
> -#include <linux/module.h>
> -#include <linux/mutex.h>
> -#include <linux/spi/spi.h>
> -#include <linux/slab.h>
> -#include <linux/sysfs.h>
> -#include <linux/iio/iio.h>
> -#include <linux/iio/sysfs.h>
> -#include "meter.h"
> -
> -#define ADE7754_AENERGY 0x01
> -#define ADE7754_RAENERGY 0x02
> -#define ADE7754_LAENERGY 0x03
> -#define ADE7754_VAENERGY 0x04
> -#define ADE7754_RVAENERGY 0x05
> -#define ADE7754_LVAENERGY 0x06
> -#define ADE7754_PERIOD 0x07
> -#define ADE7754_TEMP 0x08
> -#define ADE7754_WFORM 0x09
> -#define ADE7754_OPMODE 0x0A
> -#define ADE7754_MMODE 0x0B
> -#define ADE7754_WAVMODE 0x0C
> -#define ADE7754_WATMODE 0x0D
> -#define ADE7754_VAMODE 0x0E
> -#define ADE7754_IRQEN 0x0F
> -#define ADE7754_STATUS 0x10
> -#define ADE7754_RSTATUS 0x11
> -#define ADE7754_ZXTOUT 0x12
> -#define ADE7754_LINCYC 0x13
> -#define ADE7754_SAGCYC 0x14
> -#define ADE7754_SAGLVL 0x15
> -#define ADE7754_VPEAK 0x16
> -#define ADE7754_IPEAK 0x17
> -#define ADE7754_GAIN 0x18
> -#define ADE7754_AWG 0x19
> -#define ADE7754_BWG 0x1A
> -#define ADE7754_CWG 0x1B
> -#define ADE7754_AVAG 0x1C
> -#define ADE7754_BVAG 0x1D
> -#define ADE7754_CVAG 0x1E
> -#define ADE7754_APHCAL 0x1F
> -#define ADE7754_BPHCAL 0x20
> -#define ADE7754_CPHCAL 0x21
> -#define ADE7754_AAPOS 0x22
> -#define ADE7754_BAPOS 0x23
> -#define ADE7754_CAPOS 0x24
> -#define ADE7754_CFNUM 0x25
> -#define ADE7754_CFDEN 0x26
> -#define ADE7754_WDIV 0x27
> -#define ADE7754_VADIV 0x28
> -#define ADE7754_AIRMS 0x29
> -#define ADE7754_BIRMS 0x2A
> -#define ADE7754_CIRMS 0x2B
> -#define ADE7754_AVRMS 0x2C
> -#define ADE7754_BVRMS 0x2D
> -#define ADE7754_CVRMS 0x2E
> -#define ADE7754_AIRMSOS 0x2F
> -#define ADE7754_BIRMSOS 0x30
> -#define ADE7754_CIRMSOS 0x31
> -#define ADE7754_AVRMSOS 0x32
> -#define ADE7754_BVRMSOS 0x33
> -#define ADE7754_CVRMSOS 0x34
> -#define ADE7754_AAPGAIN 0x35
> -#define ADE7754_BAPGAIN 0x36
> -#define ADE7754_CAPGAIN 0x37
> -#define ADE7754_AVGAIN 0x38
> -#define ADE7754_BVGAIN 0x39
> -#define ADE7754_CVGAIN 0x3A
> -#define ADE7754_CHKSUM 0x3E
> -#define ADE7754_VERSION 0x3F
> -
> -#define ADE7754_READ_REG(a) a
> -#define ADE7754_WRITE_REG(a) ((a) | 0x80)
> -
> -#define ADE7754_MAX_TX 4
> -#define ADE7754_MAX_RX 4
> -#define ADE7754_STARTUP_DELAY 1000
> -
> -#define ADE7754_SPI_SLOW (u32)(300 * 1000)
> -#define ADE7754_SPI_BURST (u32)(1000 * 1000)
> -#define ADE7754_SPI_FAST (u32)(2000 * 1000)
> -
> -/**
> - * struct ade7754_state - device instance specific data
> - * @us: actual spi_device
> - * @buf_lock: mutex to protect tx, rx and write frequency
> - * @tx: transmit buffer
> - * @rx: receive buffer
> - **/
> -struct ade7754_state {
> - struct spi_device *us;
> - struct mutex buf_lock;
> - u8 tx[ADE7754_MAX_TX] ____cacheline_aligned;
> - u8 rx[ADE7754_MAX_RX];
> -};
> -
> -/* Unlocked version of ade7754_spi_write_reg_8 function */
> -static int __ade7754_spi_write_reg_8(struct device *dev, u8 reg_address, u8 val)
> -{
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> -
> - st->tx[0] = ADE7754_WRITE_REG(reg_address);
> - st->tx[1] = val;
> - return spi_write(st->us, st->tx, 2);
> -}
> -
> -static int ade7754_spi_write_reg_8(struct device *dev, u8 reg_address, u8 val)
> -{
> - int ret;
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> -
> - mutex_lock(&st->buf_lock);
> - ret = __ade7754_spi_write_reg_8(dev, reg_address, val);
> - mutex_unlock(&st->buf_lock);
> -
> - return ret;
> -}
> -
> -static int ade7754_spi_write_reg_16(struct device *dev,
> - u8 reg_address, u16 val)
> -{
> - int ret;
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> -
> - mutex_lock(&st->buf_lock);
> - st->tx[0] = ADE7754_WRITE_REG(reg_address);
> - st->tx[1] = (val >> 8) & 0xFF;
> - st->tx[2] = val & 0xFF;
> - ret = spi_write(st->us, st->tx, 3);
> - mutex_unlock(&st->buf_lock);
> -
> - return ret;
> -}
> -
> -static int ade7754_spi_read_reg_8(struct device *dev, u8 reg_address, u8 *val)
> -{
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> - int ret;
> -
> - ret = spi_w8r8(st->us, ADE7754_READ_REG(reg_address));
> - if (ret < 0) {
> - dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
> - reg_address);
> - return ret;
> - }
> - *val = ret;
> -
> - return 0;
> -}
> -
> -static int ade7754_spi_read_reg_16(struct device *dev,
> - u8 reg_address, u16 *val)
> -{
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> - int ret;
> -
> - ret = spi_w8r16be(st->us, ADE7754_READ_REG(reg_address));
> - if (ret < 0) {
> - dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
> - reg_address);
> - return ret;
> - }
> -
> - *val = ret;
> -
> - return 0;
> -}
> -
> -static int ade7754_spi_read_reg_24(struct device *dev,
> - u8 reg_address, u32 *val)
> -{
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> - int ret;
> - struct spi_transfer xfers[] = {
> - {
> - .tx_buf = st->tx,
> - .rx_buf = st->rx,
> - .bits_per_word = 8,
> - .len = 4,
> - },
> - };
> -
> - mutex_lock(&st->buf_lock);
> - st->tx[0] = ADE7754_READ_REG(reg_address);
> - st->tx[1] = 0;
> - st->tx[2] = 0;
> - st->tx[3] = 0;
> -
> - ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
> - if (ret) {
> - dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
> - reg_address);
> - goto error_ret;
> - }
> - *val = (st->rx[1] << 16) | (st->rx[2] << 8) | st->rx[3];
> -
> -error_ret:
> - mutex_unlock(&st->buf_lock);
> - return ret;
> -}
> -
> -static ssize_t ade7754_read_8bit(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - int ret;
> - u8 val = 0;
> - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
> -
> - ret = ade7754_spi_read_reg_8(dev, this_attr->address, &val);
> - if (ret)
> - return ret;
> -
> - return sprintf(buf, "%u\n", val);
> -}
> -
> -static ssize_t ade7754_read_16bit(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - int ret;
> - u16 val = 0;
> - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
> -
> - ret = ade7754_spi_read_reg_16(dev, this_attr->address, &val);
> - if (ret)
> - return ret;
> -
> - return sprintf(buf, "%u\n", val);
> -}
> -
> -static ssize_t ade7754_read_24bit(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - int ret;
> - u32 val = 0;
> - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
> -
> - ret = ade7754_spi_read_reg_24(dev, this_attr->address, &val);
> - if (ret)
> - return ret;
> -
> - return sprintf(buf, "%u\n", val & 0xFFFFFF);
> -}
> -
> -static ssize_t ade7754_write_8bit(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
> - int ret;
> - u8 val;
> -
> - ret = kstrtou8(buf, 10, &val);
> - if (ret)
> - goto error_ret;
> - ret = ade7754_spi_write_reg_8(dev, this_attr->address, val);
> -
> -error_ret:
> - return ret ? ret : len;
> -}
> -
> -static ssize_t ade7754_write_16bit(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
> - int ret;
> - u16 val;
> -
> - ret = kstrtou16(buf, 10, &val);
> - if (ret)
> - goto error_ret;
> - ret = ade7754_spi_write_reg_16(dev, this_attr->address, val);
> -
> -error_ret:
> - return ret ? ret : len;
> -}
> -
> -static int ade7754_reset(struct device *dev)
> -{
> - int ret;
> - u8 val;
> -
> - ret = ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
> - if (ret < 0)
> - return ret;
> -
> - val |= BIT(6); /* Software Chip Reset */
> - return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
> -}
> -
> -static IIO_DEV_ATTR_AENERGY(ade7754_read_24bit, ADE7754_AENERGY);
> -static IIO_DEV_ATTR_LAENERGY(ade7754_read_24bit, ADE7754_LAENERGY);
> -static IIO_DEV_ATTR_VAENERGY(ade7754_read_24bit, ADE7754_VAENERGY);
> -static IIO_DEV_ATTR_LVAENERGY(ade7754_read_24bit, ADE7754_LVAENERGY);
> -static IIO_DEV_ATTR_VPEAK(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_VPEAK);
> -static IIO_DEV_ATTR_IPEAK(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_VPEAK);
> -static IIO_DEV_ATTR_APHCAL(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_APHCAL);
> -static IIO_DEV_ATTR_BPHCAL(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_BPHCAL);
> -static IIO_DEV_ATTR_CPHCAL(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_CPHCAL);
> -static IIO_DEV_ATTR_AAPOS(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_AAPOS);
> -static IIO_DEV_ATTR_BAPOS(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_BAPOS);
> -static IIO_DEV_ATTR_CAPOS(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_CAPOS);
> -static IIO_DEV_ATTR_WDIV(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_WDIV);
> -static IIO_DEV_ATTR_VADIV(0644,
> - ade7754_read_8bit,
> - ade7754_write_8bit,
> - ADE7754_VADIV);
> -static IIO_DEV_ATTR_CFNUM(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_CFNUM);
> -static IIO_DEV_ATTR_CFDEN(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_CFDEN);
> -static IIO_DEV_ATTR_ACTIVE_POWER_A_GAIN(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_AAPGAIN);
> -static IIO_DEV_ATTR_ACTIVE_POWER_B_GAIN(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_BAPGAIN);
> -static IIO_DEV_ATTR_ACTIVE_POWER_C_GAIN(0644,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_CAPGAIN);
> -static IIO_DEV_ATTR_AIRMS(0444,
> - ade7754_read_24bit,
> - NULL,
> - ADE7754_AIRMS);
> -static IIO_DEV_ATTR_BIRMS(0444,
> - ade7754_read_24bit,
> - NULL,
> - ADE7754_BIRMS);
> -static IIO_DEV_ATTR_CIRMS(0444,
> - ade7754_read_24bit,
> - NULL,
> - ADE7754_CIRMS);
> -static IIO_DEV_ATTR_AVRMS(0444,
> - ade7754_read_24bit,
> - NULL,
> - ADE7754_AVRMS);
> -static IIO_DEV_ATTR_BVRMS(0444,
> - ade7754_read_24bit,
> - NULL,
> - ADE7754_BVRMS);
> -static IIO_DEV_ATTR_CVRMS(0444,
> - ade7754_read_24bit,
> - NULL,
> - ADE7754_CVRMS);
> -static IIO_DEV_ATTR_AIRMSOS(0444,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_AIRMSOS);
> -static IIO_DEV_ATTR_BIRMSOS(0444,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_BIRMSOS);
> -static IIO_DEV_ATTR_CIRMSOS(0444,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_CIRMSOS);
> -static IIO_DEV_ATTR_AVRMSOS(0444,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_AVRMSOS);
> -static IIO_DEV_ATTR_BVRMSOS(0444,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_BVRMSOS);
> -static IIO_DEV_ATTR_CVRMSOS(0444,
> - ade7754_read_16bit,
> - ade7754_write_16bit,
> - ADE7754_CVRMSOS);
> -
> -static int ade7754_set_irq(struct device *dev, bool enable)
> -{
> - int ret;
> - u16 irqen;
> -
> - ret = ade7754_spi_read_reg_16(dev, ADE7754_IRQEN, &irqen);
> - if (ret)
> - return ret;
> -
> - if (enable)
> - irqen |= BIT(14); /* Enables an interrupt when a data is
> - * present in the waveform register
> - */
> - else
> - irqen &= ~BIT(14);
> -
> - return ade7754_spi_write_reg_16(dev, ADE7754_IRQEN, irqen);
> -}
> -
> -/* Power down the device */
> -static int ade7754_stop_device(struct device *dev)
> -{
> - int ret;
> - u8 val;
> -
> - ret = ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
> - if (ret < 0) {
> - dev_err(dev, "unable to power down the device, error: %d",
> - ret);
> - return ret;
> - }
> -
> - val |= 7 << 3; /* ADE7754 powered down */
> - return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
> -}
> -
> -static int ade7754_initial_setup(struct iio_dev *indio_dev)
> -{
> - int ret;
> - struct ade7754_state *st = iio_priv(indio_dev);
> - struct device *dev = &indio_dev->dev;
> -
> - /* use low spi speed for init */
> - st->us->mode = SPI_MODE_3;
> - spi_setup(st->us);
> -
> - /* Disable IRQ */
> - ret = ade7754_set_irq(dev, false);
> - if (ret) {
> - dev_err(dev, "disable irq failed");
> - goto err_ret;
> - }
> -
> - ade7754_reset(dev);
> - usleep_range(ADE7754_STARTUP_DELAY, ADE7754_STARTUP_DELAY + 100);
> -
> -err_ret:
> - return ret;
> -}
> -
> -static ssize_t ade7754_read_frequency(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> -{
> - int ret;
> - u8 t;
> - int sps;
> -
> - ret = ade7754_spi_read_reg_8(dev, ADE7754_WAVMODE, &t);
> - if (ret)
> - return ret;
> -
> - t = (t >> 3) & 0x3;
> - sps = 26000 / (1 + t);
> -
> - return sprintf(buf, "%d\n", sps);
> -}
> -
> -static ssize_t ade7754_write_frequency(struct device *dev,
> - struct device_attribute *attr,
> - const char *buf,
> - size_t len)
> -{
> - struct iio_dev *indio_dev = dev_to_iio_dev(dev);
> - struct ade7754_state *st = iio_priv(indio_dev);
> - u16 val;
> - int ret;
> - u8 reg, t;
> -
> - ret = kstrtou16(buf, 10, &val);
> - if (ret)
> - return ret;
> - if (!val)
> - return -EINVAL;
> -
> - mutex_lock(&st->buf_lock);
> -
> - t = 26000 / val;
> - if (t > 0)
> - t--;
> -
> - if (t > 1)
> - st->us->max_speed_hz = ADE7754_SPI_SLOW;
> - else
> - st->us->max_speed_hz = ADE7754_SPI_FAST;
> -
> - ret = ade7754_spi_read_reg_8(dev, ADE7754_WAVMODE, ®);
> - if (ret)
> - goto out;
> -
> - reg &= ~(3 << 3);
> - reg |= t << 3;
> -
> - ret = __ade7754_spi_write_reg_8(dev, ADE7754_WAVMODE, reg);
> -
> -out:
> - mutex_unlock(&st->buf_lock);
> -
> - return ret ? ret : len;
> -}
> -static IIO_DEV_ATTR_TEMP_RAW(ade7754_read_8bit);
> -static IIO_CONST_ATTR(in_temp_offset, "129 C");
> -static IIO_CONST_ATTR(in_temp_scale, "4 C");
> -
> -static IIO_DEV_ATTR_SAMP_FREQ(0644,
> - ade7754_read_frequency,
> - ade7754_write_frequency);
> -
> -static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("26000 13000 65000 33000");
> -
> -static struct attribute *ade7754_attributes[] = {
> - &iio_dev_attr_in_temp_raw.dev_attr.attr,
> - &iio_const_attr_in_temp_offset.dev_attr.attr,
> - &iio_const_attr_in_temp_scale.dev_attr.attr,
> - &iio_dev_attr_sampling_frequency.dev_attr.attr,
> - &iio_const_attr_sampling_frequency_available.dev_attr.attr,
> - &iio_dev_attr_aenergy.dev_attr.attr,
> - &iio_dev_attr_laenergy.dev_attr.attr,
> - &iio_dev_attr_vaenergy.dev_attr.attr,
> - &iio_dev_attr_lvaenergy.dev_attr.attr,
> - &iio_dev_attr_vpeak.dev_attr.attr,
> - &iio_dev_attr_ipeak.dev_attr.attr,
> - &iio_dev_attr_aphcal.dev_attr.attr,
> - &iio_dev_attr_bphcal.dev_attr.attr,
> - &iio_dev_attr_cphcal.dev_attr.attr,
> - &iio_dev_attr_aapos.dev_attr.attr,
> - &iio_dev_attr_bapos.dev_attr.attr,
> - &iio_dev_attr_capos.dev_attr.attr,
> - &iio_dev_attr_wdiv.dev_attr.attr,
> - &iio_dev_attr_vadiv.dev_attr.attr,
> - &iio_dev_attr_cfnum.dev_attr.attr,
> - &iio_dev_attr_cfden.dev_attr.attr,
> - &iio_dev_attr_active_power_a_gain.dev_attr.attr,
> - &iio_dev_attr_active_power_b_gain.dev_attr.attr,
> - &iio_dev_attr_active_power_c_gain.dev_attr.attr,
> - &iio_dev_attr_airms.dev_attr.attr,
> - &iio_dev_attr_birms.dev_attr.attr,
> - &iio_dev_attr_cirms.dev_attr.attr,
> - &iio_dev_attr_avrms.dev_attr.attr,
> - &iio_dev_attr_bvrms.dev_attr.attr,
> - &iio_dev_attr_cvrms.dev_attr.attr,
> - &iio_dev_attr_airmsos.dev_attr.attr,
> - &iio_dev_attr_birmsos.dev_attr.attr,
> - &iio_dev_attr_cirmsos.dev_attr.attr,
> - &iio_dev_attr_avrmsos.dev_attr.attr,
> - &iio_dev_attr_bvrmsos.dev_attr.attr,
> - &iio_dev_attr_cvrmsos.dev_attr.attr,
> - NULL,
> -};
> -
> -static const struct attribute_group ade7754_attribute_group = {
> - .attrs = ade7754_attributes,
> -};
> -
> -static const struct iio_info ade7754_info = {
> - .attrs = &ade7754_attribute_group,
> -};
> -
> -static int ade7754_probe(struct spi_device *spi)
> -{
> - int ret;
> - struct ade7754_state *st;
> - struct iio_dev *indio_dev;
> -
> - /* setup the industrialio driver allocated elements */
> - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
> - if (!indio_dev)
> - return -ENOMEM;
> - /* this is only used for removal purposes */
> - spi_set_drvdata(spi, indio_dev);
> -
> - st = iio_priv(indio_dev);
> - st->us = spi;
> - mutex_init(&st->buf_lock);
> -
> - indio_dev->name = spi->dev.driver->name;
> - indio_dev->dev.parent = &spi->dev;
> - indio_dev->info = &ade7754_info;
> - indio_dev->modes = INDIO_DIRECT_MODE;
> -
> - /* Get the device into a sane initial state */
> - ret = ade7754_initial_setup(indio_dev);
> - if (ret)
> - goto powerdown_on_error;
> - ret = iio_device_register(indio_dev);
> - if (ret)
> - goto powerdown_on_error;
> - return ret;
> -
> -powerdown_on_error:
> - ade7754_stop_device(&indio_dev->dev);
> - return ret;
> -}
> -
> -static int ade7754_remove(struct spi_device *spi)
> -{
> - struct iio_dev *indio_dev = spi_get_drvdata(spi);
> -
> - iio_device_unregister(indio_dev);
> - ade7754_stop_device(&indio_dev->dev);
> -
> - return 0;
> -}
> -
> -static struct spi_driver ade7754_driver = {
> - .driver = {
> - .name = "ade7754",
> - },
> - .probe = ade7754_probe,
> - .remove = ade7754_remove,
> -};
> -module_spi_driver(ade7754_driver);
> -
> -MODULE_AUTHOR("Barry Song <21cnbao@xxxxxxxxx>");
> -MODULE_DESCRIPTION("Analog Devices ADE7754 Polyphase Multifunction Energy Metering IC Driver");
> -MODULE_LICENSE("GPL v2");
> -MODULE_ALIAS("spi:ad7754");
--
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