From: Michael Hennerich Date: Wed, 18 May 2011 13:42:36 +0000 (+0100) Subject: staging:iio:meter:ade7758: Use private data space from iio_allocate_device X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a3f02370c9fa6d85fbee2c11649ebc9c84bae919;p=openwrt%2Fstaging%2Fblogic.git staging:iio:meter:ade7758: Use private data space from iio_allocate_device Use private data space from iio_allocate_device. Drop dev_data in favor of iio_priv(). Fix indention issues from previous patches. Signed-off-by: Michael Hennerich Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h index 372a9f62b3b2..fd74e156abf9 100644 --- a/drivers/staging/iio/meter/ade7758.h +++ b/drivers/staging/iio/meter/ade7758.h @@ -111,7 +111,6 @@ /** * struct ade7758_state - device instance specific data * @us: actual spi_device - * @indio_dev: industrial I/O device structure * @trig: data ready trigger registered with iio * @tx: transmit buffer * @rx: receive buffer @@ -119,21 +118,20 @@ **/ struct ade7758_state { struct spi_device *us; - struct iio_dev *indio_dev; struct iio_trigger *trig; u8 *tx; u8 *rx; struct mutex buf_lock; u32 available_scan_masks[AD7758_NUM_WAVESRC]; struct iio_chan_spec *ade7758_ring_channels; - struct spi_transfer ring_xfer[4]; - struct spi_message ring_msg; + struct spi_transfer ring_xfer[4]; + struct spi_message ring_msg; /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. */ - unsigned char rx_buf[8] ____cacheline_aligned; - unsigned char tx_buf[8]; + unsigned char rx_buf[8] ____cacheline_aligned; + unsigned char tx_buf[8]; }; #ifdef CONFIG_IIO_RING_BUFFER diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 42682ad0b26c..d9dfd8321222 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -30,7 +30,7 @@ int ade7758_spi_write_reg_8(struct device *dev, { int ret; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); mutex_lock(&st->buf_lock); st->tx[0] = ADE7758_WRITE_REG(reg_address); @@ -49,7 +49,7 @@ static int ade7758_spi_write_reg_16(struct device *dev, int ret; struct spi_message msg; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); struct spi_transfer xfers[] = { { .tx_buf = st->tx, @@ -78,7 +78,7 @@ static int ade7758_spi_write_reg_24(struct device *dev, int ret; struct spi_message msg; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); struct spi_transfer xfers[] = { { .tx_buf = st->tx, @@ -107,7 +107,7 @@ int ade7758_spi_read_reg_8(struct device *dev, { struct spi_message msg; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); int ret; struct spi_transfer xfers[] = { { @@ -150,7 +150,7 @@ static int ade7758_spi_read_reg_16(struct device *dev, { struct spi_message msg; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); int ret; struct spi_transfer xfers[] = { { @@ -196,7 +196,7 @@ static int ade7758_spi_read_reg_24(struct device *dev, { struct spi_message msg; struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); int ret; struct spi_transfer xfers[] = { { @@ -485,10 +485,11 @@ static int ade7758_stop_device(struct device *dev) return ret; } -static int ade7758_initial_setup(struct ade7758_state *st) +static int ade7758_initial_setup(struct iio_dev *indio_dev) { + struct ade7758_state *st = iio_priv(indio_dev); + struct device *dev = &indio_dev->dev; int ret; - struct device *dev = &st->indio_dev->dev; /* use low spi speed for init */ st->us->mode = SPI_MODE_1; @@ -727,19 +728,23 @@ static struct iio_chan_spec ade7758_channels[] = { static int __devinit ade7758_probe(struct spi_device *spi) { int i, ret, regdone = 0; - struct ade7758_state *st = kzalloc(sizeof *st, GFP_KERNEL); - if (!st) { - ret = -ENOMEM; + struct ade7758_state *st; + struct iio_dev *indio_dev = iio_allocate_device(sizeof(*st)); + + if (indio_dev == NULL) { + ret = -ENOMEM; goto error_ret; } + + st = iio_priv(indio_dev); /* this is only used for removal purposes */ - spi_set_drvdata(spi, st); + spi_set_drvdata(spi, indio_dev); /* Allocate the comms buffers */ st->rx = kzalloc(sizeof(*st->rx)*ADE7758_MAX_RX, GFP_KERNEL); if (st->rx == NULL) { ret = -ENOMEM; - goto error_free_st; + goto error_free_dev; } st->tx = kzalloc(sizeof(*st->tx)*ADE7758_MAX_TX, GFP_KERNEL); if (st->tx == NULL) { @@ -749,35 +754,28 @@ static int __devinit ade7758_probe(struct spi_device *spi) st->us = spi; st->ade7758_ring_channels = &ade7758_channels[0]; mutex_init(&st->buf_lock); - /* setup the industrialio driver allocated elements */ - st->indio_dev = iio_allocate_device(0); - if (st->indio_dev == NULL) { - ret = -ENOMEM; - goto error_free_tx; - } - st->indio_dev->name = spi->dev.driver->name; - st->indio_dev->dev.parent = &spi->dev; - st->indio_dev->attrs = &ade7758_attribute_group; - st->indio_dev->dev_data = (void *)(st); - st->indio_dev->driver_module = THIS_MODULE; - st->indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->name = spi->dev.driver->name; + indio_dev->dev.parent = &spi->dev; + indio_dev->attrs = &ade7758_attribute_group; + indio_dev->driver_module = THIS_MODULE; + indio_dev->modes = INDIO_DIRECT_MODE; for (i = 0; i < AD7758_NUM_WAVESRC; i++) st->available_scan_masks[i] = 1 << i; - st->indio_dev->available_scan_masks = st->available_scan_masks; + indio_dev->available_scan_masks = st->available_scan_masks; - ret = ade7758_configure_ring(st->indio_dev); + ret = ade7758_configure_ring(indio_dev); if (ret) - goto error_free_dev; + goto error_free_tx; - ret = iio_device_register(st->indio_dev); + ret = iio_device_register(indio_dev); if (ret) goto error_unreg_ring_funcs; regdone = 1; - ret = iio_ring_buffer_register_ex(st->indio_dev->ring, 0, + ret = iio_ring_buffer_register_ex(indio_dev->ring, 0, &ade7758_channels[0], ARRAY_SIZE(ade7758_channels)); if (ret) { @@ -786,12 +784,12 @@ static int __devinit ade7758_probe(struct spi_device *spi) } /* Get the device into a sane initial state */ - ret = ade7758_initial_setup(st); + ret = ade7758_initial_setup(indio_dev); if (ret) goto error_uninitialize_ring; if (spi->irq) { - ret = ade7758_probe_trigger(st->indio_dev); + ret = ade7758_probe_trigger(indio_dev); if (ret) goto error_remove_trigger; } @@ -799,47 +797,43 @@ static int __devinit ade7758_probe(struct spi_device *spi) return 0; error_remove_trigger: - if (st->indio_dev->modes & INDIO_RING_TRIGGERED) - ade7758_remove_trigger(st->indio_dev); + if (indio_dev->modes & INDIO_RING_TRIGGERED) + ade7758_remove_trigger(indio_dev); error_uninitialize_ring: - ade7758_uninitialize_ring(st->indio_dev->ring); + ade7758_uninitialize_ring(indio_dev->ring); error_unreg_ring_funcs: - ade7758_unconfigure_ring(st->indio_dev); -error_free_dev: - if (regdone) - iio_device_unregister(st->indio_dev); - else - iio_free_device(st->indio_dev); + ade7758_unconfigure_ring(indio_dev); error_free_tx: kfree(st->tx); error_free_rx: kfree(st->rx); -error_free_st: - kfree(st); +error_free_dev: + if (regdone) + iio_device_unregister(indio_dev); + else + iio_free_device(indio_dev); error_ret: return ret; } static int ade7758_remove(struct spi_device *spi) { + struct iio_dev *indio_dev = spi_get_drvdata(spi); + struct ade7758_state *st = iio_priv(indio_dev); int ret; - struct ade7758_state *st = spi_get_drvdata(spi); - struct iio_dev *indio_dev = st->indio_dev; - ret = ade7758_stop_device(&(indio_dev->dev)); + ret = ade7758_stop_device(&indio_dev->dev); if (ret) goto err_ret; ade7758_remove_trigger(indio_dev); ade7758_uninitialize_ring(indio_dev->ring); - iio_device_unregister(indio_dev); ade7758_unconfigure_ring(indio_dev); kfree(st->tx); kfree(st->rx); - kfree(st); + iio_device_unregister(indio_dev); return 0; - err_ret: return ret; } diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c index 564555a81191..a5e48c1bd424 100644 --- a/drivers/staging/iio/meter/ade7758_ring.c +++ b/drivers/staging/iio/meter/ade7758_ring.c @@ -32,7 +32,7 @@ static int ade7758_spi_read_burst(struct device *dev) { struct iio_dev *indio_dev = dev_get_drvdata(dev); - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); int ret; ret = spi_sync(st->us, &st->ring_msg); @@ -71,12 +71,12 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->private_data; struct iio_ring_buffer *ring = indio_dev->ring; - struct ade7758_state *st = iio_dev_get_devdata(indio_dev); + struct ade7758_state *st = iio_priv(indio_dev); s64 dat64[2]; u32 *dat32 = (u32 *)dat64; if (ring->scan_count) - if (ade7758_spi_read_burst(&st->indio_dev->dev) >= 0) + if (ade7758_spi_read_burst(&indio_dev->dev) >= 0) *dat32 = get_unaligned_be32(&st->rx_buf[5]) & 0xFFFFFF; /* Guaranteed to be aligned with 8 byte boundary */ @@ -85,7 +85,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p) ring->access->store_to(ring, (u8 *)dat64, pf->timestamp); - iio_trigger_notify_done(st->indio_dev->trig); + iio_trigger_notify_done(indio_dev->trig); return IRQ_HANDLED; } @@ -99,7 +99,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p) **/ static int ade7758_ring_preenable(struct iio_dev *indio_dev) { - struct ade7758_state *st = indio_dev->dev_data; + struct ade7758_state *st = iio_priv(indio_dev); struct iio_ring_buffer *ring = indio_dev->ring; size_t d_size; unsigned channel; @@ -149,7 +149,7 @@ void ade7758_unconfigure_ring(struct iio_dev *indio_dev) int ade7758_configure_ring(struct iio_dev *indio_dev) { - struct ade7758_state *st = indio_dev->dev_data; + struct ade7758_state *st = iio_priv(indio_dev); int ret = 0; indio_dev->ring = iio_sw_rb_allocate(indio_dev); diff --git a/drivers/staging/iio/meter/ade7758_trigger.c b/drivers/staging/iio/meter/ade7758_trigger.c index 5442d796357c..a5c3248151ed 100644 --- a/drivers/staging/iio/meter/ade7758_trigger.c +++ b/drivers/staging/iio/meter/ade7758_trigger.c @@ -37,8 +37,7 @@ static irqreturn_t ade7758_data_rdy_trig_poll(int irq, void *private) static int ade7758_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { - struct ade7758_state *st = trig->private_data; - struct iio_dev *indio_dev = st->indio_dev; + struct iio_dev *indio_dev = trig->private_data; dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state); return ade7758_set_irq(&indio_dev->dev, state); @@ -50,7 +49,8 @@ static int ade7758_data_rdy_trigger_set_state(struct iio_trigger *trig, **/ static int ade7758_trig_try_reen(struct iio_trigger *trig) { - struct ade7758_state *st = trig->private_data; + struct iio_dev *indio_dev = trig->private_data; + struct ade7758_state *st = iio_priv(indio_dev); enable_irq(st->us->irq); /* irq reenabled so success! */ @@ -59,8 +59,8 @@ static int ade7758_trig_try_reen(struct iio_trigger *trig) int ade7758_probe_trigger(struct iio_dev *indio_dev) { + struct ade7758_state *st = iio_priv(indio_dev); int ret; - struct ade7758_state *st = indio_dev->dev_data; st->trig = iio_allocate_trigger("%s-dev%d", spi_get_device_id(st->us)->name, @@ -80,7 +80,7 @@ int ade7758_probe_trigger(struct iio_dev *indio_dev) st->trig->dev.parent = &st->us->dev; st->trig->owner = THIS_MODULE; - st->trig->private_data = st; + st->trig->private_data = indio_dev; st->trig->set_trigger_state = &ade7758_data_rdy_trigger_set_state; st->trig->try_reenable = &ade7758_trig_try_reen; ret = iio_trigger_register(st->trig); @@ -102,9 +102,9 @@ error_ret: void ade7758_remove_trigger(struct iio_dev *indio_dev) { - struct ade7758_state *state = indio_dev->dev_data; + struct ade7758_state *st = iio_priv(indio_dev); - iio_trigger_unregister(state->trig); - free_irq(state->us->irq, state->trig); - iio_free_trigger(state->trig); + iio_trigger_unregister(st->trig); + free_irq(st->us->irq, st->trig); + iio_free_trigger(st->trig); }