From: Jonathan Cameron Date: Mon, 27 Jun 2011 12:07:16 +0000 (+0100) Subject: staging:iio:accel:sca3000: allocate state in iio_dev and use iio_priv to access. X-Git-Tag: next-20110726~5^2~484 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=83f0422dc6a16ffa03d284b8dcce1344a91f79df;p=karo-tx-linux.git staging:iio:accel:sca3000: allocate state in iio_dev and use iio_priv to access. Mechanical change. Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/iio/accel/sca3000.h b/drivers/staging/iio/accel/sca3000.h index cf0751d917a9..1e396cefdf6e 100644 --- a/drivers/staging/iio/accel/sca3000.h +++ b/drivers/staging/iio/accel/sca3000.h @@ -173,7 +173,6 @@ struct sca3000_state { struct spi_device *us; const struct sca3000_chip_info *info; - struct iio_dev *indio_dev; struct work_struct interrupt_handler_ws; s64 last_timestamp; int mo_det_use_count; diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index f213b8698eb2..4313f731b6f6 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -242,7 +242,7 @@ static int sca3000_check_status(struct device *dev) { int ret; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); mutex_lock(&st->lock); ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_STATUS, 1); @@ -269,7 +269,7 @@ static ssize_t sca3000_show_rev(struct device *dev, { int len = 0, ret; struct iio_dev *dev_info = dev_get_drvdata(dev); - struct sca3000_state *st = dev_info->dev_data; + struct sca3000_state *st = iio_priv(dev_info); mutex_lock(&st->lock); ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_REVID, 1); @@ -297,7 +297,7 @@ sca3000_show_available_measurement_modes(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct sca3000_state *st = dev_info->dev_data; + struct sca3000_state *st = iio_priv(dev_info); int len = 0; len += sprintf(buf + len, "0 - normal mode"); @@ -329,7 +329,7 @@ sca3000_show_measurement_mode(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct sca3000_state *st = dev_info->dev_data; + struct sca3000_state *st = iio_priv(dev_info); int len = 0, ret; mutex_lock(&st->lock); @@ -380,7 +380,7 @@ sca3000_store_measurement_mode(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct sca3000_state *st = dev_info->dev_data; + struct sca3000_state *st = iio_priv(dev_info); int ret; int mask = 0x03; long val; @@ -453,7 +453,7 @@ static int sca3000_read_raw(struct iio_dev *indio_dev, int *val2, long mask) { - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret; u8 address; @@ -500,7 +500,7 @@ static ssize_t sca3000_read_av_freq(struct device *dev, char *buf) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int len = 0, ret, val; mutex_lock(&st->lock); @@ -571,7 +571,7 @@ static ssize_t sca3000_read_frequency(struct device *dev, char *buf) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret, len = 0, base_freq = 0, val; mutex_lock(&st->lock); @@ -613,7 +613,7 @@ static ssize_t sca3000_set_frequency(struct device *dev, size_t len) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret, base_freq = 0; int ctrlval; long val; @@ -673,7 +673,7 @@ static ssize_t sca3000_read_temp(struct device *dev, char *buf) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret; int val; ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_TEMP_MSB, 2); @@ -699,7 +699,7 @@ static int sca3000_read_thresh(struct iio_dev *indio_dev, int *val) { int ret, i; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e); mutex_lock(&st->lock); ret = sca3000_read_ctrl_reg(st, sca3000_addresses[num][1]); @@ -726,7 +726,7 @@ static int sca3000_write_thresh(struct iio_dev *indio_dev, int e, int val) { - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e); int ret; int i; @@ -798,11 +798,10 @@ static const struct attribute_group sca3000_attribute_group_with_temp = { static irqreturn_t sca3000_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; - struct sca3000_state *st; + struct sca3000_state *st = iio_priv(indio_dev); int ret, val; s64 last_timestamp = iio_get_time_ns(); - st = indio_dev->dev_data; /* Could lead if badly timed to an extra read of status reg, * but ensures no interrupt is missed. */ @@ -813,10 +812,10 @@ static irqreturn_t sca3000_event_handler(int irq, void *private) if (ret) goto done; - sca3000_ring_int_process(val, st->indio_dev->ring); + sca3000_ring_int_process(val, indio_dev->ring); if (val & SCA3000_INT_STATUS_FREE_FALL) - iio_push_event(st->indio_dev, 0, + iio_push_event(indio_dev, 0, IIO_MOD_EVENT_CODE(IIO_EV_CLASS_ACCEL, 0, IIO_EV_MOD_X_AND_Y_AND_Z, @@ -825,7 +824,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private) last_timestamp); if (val & SCA3000_INT_STATUS_Y_TRIGGER) - iio_push_event(st->indio_dev, 0, + iio_push_event(indio_dev, 0, IIO_MOD_EVENT_CODE(IIO_EV_CLASS_ACCEL, 0, IIO_EV_MOD_Y, @@ -834,7 +833,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private) last_timestamp); if (val & SCA3000_INT_STATUS_X_TRIGGER) - iio_push_event(st->indio_dev, 0, + iio_push_event(indio_dev, 0, IIO_MOD_EVENT_CODE(IIO_EV_CLASS_ACCEL, 0, IIO_EV_MOD_X, @@ -843,7 +842,7 @@ static irqreturn_t sca3000_event_handler(int irq, void *private) last_timestamp); if (val & SCA3000_INT_STATUS_Z_TRIGGER) - iio_push_event(st->indio_dev, 0, + iio_push_event(indio_dev, 0, IIO_MOD_EVENT_CODE(IIO_EV_CLASS_ACCEL, 0, IIO_EV_MOD_Z, @@ -861,7 +860,7 @@ done: static int sca3000_read_event_config(struct iio_dev *indio_dev, int e) { - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret; u8 protect_mask = 0x03; int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e); @@ -895,7 +894,7 @@ static ssize_t sca3000_query_free_fall_mode(struct device *dev, { int ret, len; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int val; mutex_lock(&st->lock); @@ -923,7 +922,7 @@ static ssize_t sca3000_set_free_fall_mode(struct device *dev, size_t len) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); long val; int ret; u8 protect_mask = SCA3000_FREE_FALL_DETECT; @@ -965,7 +964,7 @@ static int sca3000_write_event_config(struct iio_dev *indio_dev, int e, int state) { - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret, ctrlval; u8 protect_mask = 0x03; int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e); @@ -1126,42 +1125,37 @@ static int __devinit sca3000_probe(struct spi_device *spi) { int ret, regdone = 0; struct sca3000_state *st; + struct iio_dev *indio_dev; - st = kzalloc(sizeof(struct sca3000_state), GFP_KERNEL); - if (st == NULL) { + indio_dev = iio_allocate_device(sizeof(*st)); + if (indio_dev == NULL) { ret = -ENOMEM; goto error_ret; } - spi_set_drvdata(spi, st); + spi_set_drvdata(spi, indio_dev); st->us = spi; mutex_init(&st->lock); st->info = &sca3000_spi_chip_info_tbl[spi_get_device_id(spi) ->driver_data]; - st->indio_dev = iio_allocate_device(0); - if (st->indio_dev == NULL) { - ret = -ENOMEM; - goto error_clear_st; - } - st->indio_dev->dev.parent = &spi->dev; - st->indio_dev->name = spi_get_device_id(spi)->name; + indio_dev->dev.parent = &spi->dev; + indio_dev->name = spi_get_device_id(spi)->name; if (st->info->temp_output) - st->indio_dev->info = &sca3000_info_with_temp; + indio_dev->info = &sca3000_info_with_temp; else { - st->indio_dev->info = &sca3000_info; - st->indio_dev->channels = sca3000_channels; - st->indio_dev->num_channels = ARRAY_SIZE(sca3000_channels); + indio_dev->info = &sca3000_info; + indio_dev->channels = sca3000_channels; + indio_dev->num_channels = ARRAY_SIZE(sca3000_channels); } - st->indio_dev->dev_data = (void *)(st); - st->indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->modes = INDIO_DIRECT_MODE; - sca3000_configure_ring(st->indio_dev); - ret = iio_device_register(st->indio_dev); + sca3000_configure_ring(indio_dev); + ret = iio_device_register(indio_dev); if (ret < 0) goto error_free_dev; regdone = 1; - ret = iio_ring_buffer_register_ex(st->indio_dev->ring, 0, + ret = iio_ring_buffer_register_ex(indio_dev->ring, 0, sca3000_channels, ARRAY_SIZE(sca3000_channels)); if (ret < 0) @@ -1172,11 +1166,11 @@ static int __devinit sca3000_probe(struct spi_device *spi) &sca3000_event_handler, IRQF_TRIGGER_FALLING, "sca3000", - st->indio_dev); + indio_dev); if (ret) goto error_unregister_ring; } - sca3000_register_ring_funcs(st->indio_dev); + sca3000_register_ring_funcs(indio_dev); ret = sca3000_clean_setup(st); if (ret) goto error_free_irq; @@ -1184,17 +1178,16 @@ static int __devinit sca3000_probe(struct spi_device *spi) error_free_irq: if (spi->irq && gpio_is_valid(irq_to_gpio(spi->irq)) > 0) - free_irq(spi->irq, st->indio_dev); + free_irq(spi->irq, indio_dev); error_unregister_ring: - iio_ring_buffer_unregister(st->indio_dev->ring); + iio_ring_buffer_unregister(indio_dev->ring); error_unregister_dev: error_free_dev: if (regdone) - iio_device_unregister(st->indio_dev); + iio_device_unregister(indio_dev); else - iio_free_device(st->indio_dev); -error_clear_st: - kfree(st); + iio_free_device(indio_dev); + error_ret: return ret; } @@ -1219,8 +1212,8 @@ error_ret: static int sca3000_remove(struct spi_device *spi) { - struct sca3000_state *st = spi_get_drvdata(spi); - struct iio_dev *indio_dev = st->indio_dev; + struct iio_dev *indio_dev = spi_get_drvdata(spi); + struct sca3000_state *st = iio_priv(indio_dev); int ret; /* Must ensure no interrupts can be generated after this!*/ ret = sca3000_stop_all_interrupts(st); @@ -1232,8 +1225,6 @@ static int sca3000_remove(struct spi_device *spi) sca3000_unconfigure_ring(indio_dev); iio_device_unregister(indio_dev); - kfree(st); - return 0; } diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c index 7c4ff0b1df04..a704c75fffc2 100644 --- a/drivers/staging/iio/accel/sca3000_ring.c +++ b/drivers/staging/iio/accel/sca3000_ring.c @@ -89,7 +89,7 @@ static int sca3000_read_first_n_hw_rb(struct iio_ring_buffer *r, { struct iio_hw_ring_buffer *hw_ring = iio_to_hw_ring_buf(r); struct iio_dev *indio_dev = hw_ring->private; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); u8 *rx; int ret, i, num_available, num_read = 0; int bytes_per_sample = 1; @@ -168,7 +168,7 @@ static ssize_t sca3000_query_ring_int(struct device *dev, int ret, val; struct iio_ring_buffer *ring = dev_get_drvdata(dev); struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); mutex_lock(&st->lock); ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1); @@ -190,7 +190,7 @@ static ssize_t sca3000_set_ring_int(struct device *dev, { struct iio_ring_buffer *ring = dev_get_drvdata(dev); struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); long val; int ret; @@ -240,7 +240,7 @@ static ssize_t sca3000_show_ring_bpse(struct device *dev, int len = 0, ret; struct iio_ring_buffer *ring = dev_get_drvdata(dev); struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); mutex_lock(&st->lock); ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); @@ -270,7 +270,7 @@ static ssize_t sca3000_store_ring_bpse(struct device *dev, { struct iio_ring_buffer *ring = dev_get_drvdata(dev); struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret; mutex_lock(&st->lock); @@ -300,7 +300,7 @@ static ssize_t sca3000_show_buffer_scale(struct device *dev, { struct iio_ring_buffer *ring = dev_get_drvdata(dev); struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); return sprintf(buf, "0.%06d\n", 4*st->info->scale); } @@ -397,7 +397,7 @@ void sca3000_unconfigure_ring(struct iio_dev *indio_dev) static inline int __sca3000_hw_ring_state_set(struct iio_dev *indio_dev, bool state) { - struct sca3000_state *st = indio_dev->dev_data; + struct sca3000_state *st = iio_priv(indio_dev); int ret; mutex_lock(&st->lock);