diff options
Diffstat (limited to 'drivers/staging/iio/meter/ade7854.c')
-rw-r--r-- | drivers/staging/iio/meter/ade7854.c | 78 |
1 files changed, 11 insertions, 67 deletions
diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c index a13d5048cf42..866e585451f0 100644 --- a/drivers/staging/iio/meter/ade7854.c +++ b/drivers/staging/iio/meter/ade7854.c @@ -61,7 +61,7 @@ static ssize_t ade7854_read_24bit(struct device *dev, char *buf) { int ret; - u32 val = 0; + u32 val; struct iio_dev *indio_dev = dev_get_drvdata(dev); struct ade7854_state *st = iio_dev_get_devdata(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); @@ -70,7 +70,7 @@ static ssize_t ade7854_read_24bit(struct device *dev, if (ret) return ret; - return sprintf(buf, "%u\n", val & 0xFFFFFF); + return sprintf(buf, "%u\n", val); } static ssize_t ade7854_read_32bit(struct device *dev, @@ -178,15 +178,12 @@ static int ade7854_reset(struct device *dev) { struct iio_dev *indio_dev = dev_get_drvdata(dev); struct ade7854_state *st = iio_dev_get_devdata(indio_dev); - - int ret; u16 val; st->read_reg_16(dev, ADE7854_CONFIG, &val); val |= 1 << 7; /* Software Chip Reset */ - ret = st->write_reg_16(dev, ADE7854_CONFIG, val); - return ret; + return st->write_reg_16(dev, ADE7854_CONFIG, val); } @@ -477,14 +474,6 @@ static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("8000"); static IIO_CONST_ATTR(name, "ade7854"); -static struct attribute *ade7854_event_attributes[] = { - NULL -}; - -static struct attribute_group ade7854_event_attribute_group = { - .attrs = ade7854_event_attributes, -}; - static struct attribute *ade7854_attributes[] = { &iio_dev_attr_aigain.dev_attr.attr, &iio_dev_attr_bigain.dev_attr.attr, @@ -564,7 +553,7 @@ static const struct attribute_group ade7854_attribute_group = { int ade7854_probe(struct ade7854_state *st, struct device *dev) { - int ret, regdone = 0; + int ret; /* Allocate the comms buffers */ st->rx = kzalloc(sizeof(*st->rx)*ADE7854_MAX_RX, GFP_KERNEL); @@ -586,71 +575,34 @@ int ade7854_probe(struct ade7854_state *st, struct device *dev) } st->indio_dev->dev.parent = dev; - st->indio_dev->num_interrupt_lines = 1; - st->indio_dev->event_attrs = &ade7854_event_attribute_group; st->indio_dev->attrs = &ade7854_attribute_group; st->indio_dev->dev_data = (void *)(st); st->indio_dev->driver_module = THIS_MODULE; st->indio_dev->modes = INDIO_DIRECT_MODE; - ret = ade7854_configure_ring(st->indio_dev); - if (ret) - goto error_free_dev; - ret = iio_device_register(st->indio_dev); if (ret) - goto error_unreg_ring_funcs; - regdone = 1; - - ret = ade7854_initialize_ring(st->indio_dev->ring); - if (ret) { - printk(KERN_ERR "failed to initialize the ring\n"); - goto error_unreg_ring_funcs; - } + goto error_free_dev; - if (st->irq) { - ret = iio_register_interrupt_line(st->irq, - st->indio_dev, - 0, - IRQF_TRIGGER_FALLING, - "ade7854"); - if (ret) - goto error_uninitialize_ring; - - ret = ade7854_probe_trigger(st->indio_dev); - if (ret) - goto error_unregister_line; - } /* Get the device into a sane initial state */ ret = ade7854_initial_setup(st); if (ret) - goto error_remove_trigger; + goto error_unreg_dev; return 0; -error_remove_trigger: - if (st->indio_dev->modes & INDIO_RING_TRIGGERED) - ade7854_remove_trigger(st->indio_dev); -error_unregister_line: - if (st->indio_dev->modes & INDIO_RING_TRIGGERED) - iio_unregister_interrupt_line(st->indio_dev, 0); -error_uninitialize_ring: - ade7854_uninitialize_ring(st->indio_dev->ring); -error_unreg_ring_funcs: - ade7854_unconfigure_ring(st->indio_dev); +error_unreg_dev: + iio_device_unregister(st->indio_dev); error_free_dev: - if (regdone) - iio_device_unregister(st->indio_dev); - else - iio_free_device(st->indio_dev); + iio_free_device(st->indio_dev); error_free_tx: kfree(st->tx); error_free_rx: kfree(st->rx); error_free_st: kfree(st); - return ret; + return ret; } EXPORT_SYMBOL(ade7854_probe); @@ -658,14 +610,6 @@ int ade7854_remove(struct ade7854_state *st) { struct iio_dev *indio_dev = st->indio_dev; - flush_scheduled_work(); - - ade7854_remove_trigger(indio_dev); - if (st->irq) - iio_unregister_interrupt_line(indio_dev, 0); - - ade7854_uninitialize_ring(indio_dev->ring); - ade7854_unconfigure_ring(indio_dev); iio_device_unregister(indio_dev); kfree(st->tx); kfree(st->rx); @@ -676,5 +620,5 @@ int ade7854_remove(struct ade7854_state *st) EXPORT_SYMBOL(ade7854_remove); MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); -MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver"); +MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Energy Meter"); MODULE_LICENSE("GPL v2"); |