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staging:iio:meter:ade7854: Allocate buffers in state and state with iio_dev.
Requires moving a few things around, but should be no functional changes. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron
Greg Kroah-Hartman
parent
57157d1c0e
commit
937a960121
4 changed files with 79 additions and 108 deletions
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@ -20,7 +20,7 @@ static int ade7854_i2c_write_reg_8(struct device *dev,
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{
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int ret;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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mutex_lock(&st->buf_lock);
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st->tx[0] = (reg_address >> 8) & 0xFF;
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@ -39,7 +39,7 @@ static int ade7854_i2c_write_reg_16(struct device *dev,
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{
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int ret;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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mutex_lock(&st->buf_lock);
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st->tx[0] = (reg_address >> 8) & 0xFF;
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@ -59,7 +59,7 @@ static int ade7854_i2c_write_reg_24(struct device *dev,
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{
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int ret;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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mutex_lock(&st->buf_lock);
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st->tx[0] = (reg_address >> 8) & 0xFF;
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@ -80,7 +80,7 @@ static int ade7854_i2c_write_reg_32(struct device *dev,
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{
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int ret;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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mutex_lock(&st->buf_lock);
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st->tx[0] = (reg_address >> 8) & 0xFF;
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@ -101,7 +101,7 @@ static int ade7854_i2c_read_reg_8(struct device *dev,
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u8 *val)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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mutex_lock(&st->buf_lock);
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@ -127,7 +127,7 @@ static int ade7854_i2c_read_reg_16(struct device *dev,
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u16 *val)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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mutex_lock(&st->buf_lock);
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@ -153,7 +153,7 @@ static int ade7854_i2c_read_reg_24(struct device *dev,
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u32 *val)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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mutex_lock(&st->buf_lock);
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@ -179,7 +179,7 @@ static int ade7854_i2c_read_reg_32(struct device *dev,
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u32 *val)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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mutex_lock(&st->buf_lock);
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@ -204,13 +204,14 @@ static int __devinit ade7854_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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int ret;
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struct ade7854_state *st = kzalloc(sizeof *st, GFP_KERNEL);
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if (!st) {
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ret = -ENOMEM;
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return ret;
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}
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struct ade7854_state *st;
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struct iio_dev *indio_dev;
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i2c_set_clientdata(client, st);
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indio_dev = iio_allocate_device(sizeof(*st));
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if (indio_dev == NULL)
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return -ENOMEM;
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st = iio_priv(indio_dev);
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i2c_set_clientdata(client, indio_dev);
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st->read_reg_8 = ade7854_i2c_read_reg_8;
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st->read_reg_16 = ade7854_i2c_read_reg_16;
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st->read_reg_24 = ade7854_i2c_read_reg_24;
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@ -222,11 +223,9 @@ static int __devinit ade7854_i2c_probe(struct i2c_client *client,
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st->i2c = client;
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st->irq = client->irq;
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ret = ade7854_probe(st, &client->dev);
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if (ret) {
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kfree(st);
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return ret;
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}
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ret = ade7854_probe(indio_dev, &client->dev);
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if (ret)
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iio_free_device(indio_dev);
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return ret;
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}
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@ -21,7 +21,7 @@ static int ade7854_spi_write_reg_8(struct device *dev,
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int ret;
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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@ -49,7 +49,7 @@ static int ade7854_spi_write_reg_16(struct device *dev,
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int ret;
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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@ -78,7 +78,7 @@ static int ade7854_spi_write_reg_24(struct device *dev,
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int ret;
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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@ -108,7 +108,7 @@ static int ade7854_spi_write_reg_32(struct device *dev,
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int ret;
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct spi_transfer xfer = {
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.tx_buf = st->tx,
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.bits_per_word = 8,
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@ -138,7 +138,7 @@ static int ade7854_spi_read_reg_8(struct device *dev,
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{
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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struct spi_transfer xfers[] = {
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{
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@ -180,7 +180,7 @@ static int ade7854_spi_read_reg_16(struct device *dev,
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{
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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struct spi_transfer xfers[] = {
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{
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@ -221,7 +221,7 @@ static int ade7854_spi_read_reg_24(struct device *dev,
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{
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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struct spi_transfer xfers[] = {
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{
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@ -263,7 +263,7 @@ static int ade7854_spi_read_reg_32(struct device *dev,
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{
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struct spi_message msg;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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struct spi_transfer xfers[] = {
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{
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@ -302,13 +302,14 @@ static int ade7854_spi_read_reg_32(struct device *dev,
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static int __devinit ade7854_spi_probe(struct spi_device *spi)
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{
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int ret;
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struct ade7854_state *st = kzalloc(sizeof *st, GFP_KERNEL);
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if (!st) {
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ret = -ENOMEM;
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return ret;
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}
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struct ade7854_state *st;
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struct iio_dev *indio_dev;
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spi_set_drvdata(spi, st);
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indio_dev = iio_allocate_device(sizeof(*st));
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if (indio_dev == NULL)
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return -ENOMEM;
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st = iio_priv(indio_dev);
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spi_set_drvdata(spi, indio_dev);
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st->read_reg_8 = ade7854_spi_read_reg_8;
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st->read_reg_16 = ade7854_spi_read_reg_16;
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st->read_reg_24 = ade7854_spi_read_reg_24;
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@ -320,11 +321,10 @@ static int __devinit ade7854_spi_probe(struct spi_device *spi)
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st->irq = spi->irq;
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st->spi = spi;
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ret = ade7854_probe(st, &spi->dev);
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if (ret) {
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kfree(st);
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return ret;
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}
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ret = ade7854_probe(indio_dev, &spi->dev);
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if (ret)
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iio_free_device(indio_dev);
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return 0;
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}
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@ -29,7 +29,7 @@ static ssize_t ade7854_read_8bit(struct device *dev,
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int ret;
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u8 val = 0;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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ret = st->read_reg_8(dev, this_attr->address, &val);
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@ -46,7 +46,7 @@ static ssize_t ade7854_read_16bit(struct device *dev,
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int ret;
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u16 val = 0;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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ret = st->read_reg_16(dev, this_attr->address, &val);
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@ -63,7 +63,7 @@ static ssize_t ade7854_read_24bit(struct device *dev,
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int ret;
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u32 val;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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ret = st->read_reg_24(dev, this_attr->address, &val);
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@ -81,7 +81,7 @@ static ssize_t ade7854_read_32bit(struct device *dev,
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u32 val = 0;
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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ret = st->read_reg_32(dev, this_attr->address, &val);
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if (ret)
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@ -97,7 +97,7 @@ static ssize_t ade7854_write_8bit(struct device *dev,
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{
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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long val;
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@ -118,7 +118,7 @@ static ssize_t ade7854_write_16bit(struct device *dev,
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{
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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long val;
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@ -139,7 +139,7 @@ static ssize_t ade7854_write_24bit(struct device *dev,
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{
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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long val;
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@ -160,7 +160,7 @@ static ssize_t ade7854_write_32bit(struct device *dev,
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{
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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long val;
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@ -177,7 +177,7 @@ static ssize_t ade7854_write_32bit(struct device *dev,
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static int ade7854_reset(struct device *dev)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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u16 val;
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st->read_reg_16(dev, ADE7854_CONFIG, &val);
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@ -426,7 +426,7 @@ static IIO_DEV_ATTR_CVAHR(ade7854_read_32bit,
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static int ade7854_set_irq(struct device *dev, bool enable)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct ade7854_state *st = iio_dev_get_devdata(indio_dev);
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struct ade7854_state *st = iio_priv(indio_dev);
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int ret;
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u32 irqen;
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@ -449,10 +449,10 @@ static int ade7854_set_irq(struct device *dev, bool enable)
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return ret;
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}
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static int ade7854_initial_setup(struct ade7854_state *st)
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static int ade7854_initial_setup(struct iio_dev *indio_dev)
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{
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int ret;
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struct device *dev = &st->indio_dev->dev;
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struct device *dev = &indio_dev->dev;
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/* Disable IRQ */
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ret = ade7854_set_irq(dev, false);
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@ -556,68 +556,40 @@ static const struct iio_info ade7854_info = {
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.driver_module = THIS_MODULE,
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};
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int ade7854_probe(struct ade7854_state *st, struct device *dev)
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int ade7854_probe(struct iio_dev *indio_dev, struct device *dev)
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{
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int ret;
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/* Allocate the comms buffers */
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st->rx = kzalloc(sizeof(*st->rx)*ADE7854_MAX_RX, GFP_KERNEL);
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if (st->rx == NULL) {
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ret = -ENOMEM;
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goto error_free_st;
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}
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st->tx = kzalloc(sizeof(*st->tx)*ADE7854_MAX_TX, GFP_KERNEL);
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if (st->tx == NULL) {
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ret = -ENOMEM;
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goto error_free_rx;
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}
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mutex_init(&st->buf_lock);
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struct ade7854_state *st = iio_priv(indio_dev);
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/* setup the industrialio driver allocated elements */
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st->indio_dev = iio_allocate_device(0);
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if (st->indio_dev == NULL) {
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ret = -ENOMEM;
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goto error_free_tx;
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}
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mutex_init(&st->buf_lock);
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st->indio_dev->dev.parent = dev;
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st->indio_dev->info = &ade7854_info;
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st->indio_dev->dev_data = (void *)(st);
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st->indio_dev->modes = INDIO_DIRECT_MODE;
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indio_dev->dev.parent = dev;
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indio_dev->info = &ade7854_info;
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indio_dev->modes = INDIO_DIRECT_MODE;
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ret = iio_device_register(st->indio_dev);
|
||||
ret = iio_device_register(indio_dev);
|
||||
if (ret)
|
||||
goto error_free_dev;
|
||||
|
||||
/* Get the device into a sane initial state */
|
||||
ret = ade7854_initial_setup(st);
|
||||
ret = ade7854_initial_setup(indio_dev);
|
||||
if (ret)
|
||||
goto error_unreg_dev;
|
||||
|
||||
return 0;
|
||||
|
||||
error_unreg_dev:
|
||||
iio_device_unregister(st->indio_dev);
|
||||
iio_device_unregister(indio_dev);
|
||||
error_free_dev:
|
||||
iio_free_device(st->indio_dev);
|
||||
error_free_tx:
|
||||
kfree(st->tx);
|
||||
error_free_rx:
|
||||
kfree(st->rx);
|
||||
error_free_st:
|
||||
kfree(st);
|
||||
|
||||
iio_free_device(indio_dev);
|
||||
error_ret:
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(ade7854_probe);
|
||||
|
||||
int ade7854_remove(struct ade7854_state *st)
|
||||
int ade7854_remove(struct iio_dev *indio_dev)
|
||||
{
|
||||
struct iio_dev *indio_dev = st->indio_dev;
|
||||
|
||||
iio_device_unregister(indio_dev);
|
||||
kfree(st->tx);
|
||||
kfree(st->rx);
|
||||
kfree(st);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -148,29 +148,29 @@
|
|||
* struct ade7854_state - device instance specific data
|
||||
* @spi: actual spi_device
|
||||
* @indio_dev: industrial I/O device structure
|
||||
* @buf_lock: mutex to protect tx and rx
|
||||
* @tx: transmit buffer
|
||||
* @rx: receive buffer
|
||||
* @buf_lock: mutex to protect tx and rx
|
||||
**/
|
||||
struct ade7854_state {
|
||||
struct spi_device *spi;
|
||||
struct i2c_client *i2c;
|
||||
struct iio_dev *indio_dev;
|
||||
u8 *tx;
|
||||
u8 *rx;
|
||||
int (*read_reg_8) (struct device *, u16, u8 *);
|
||||
int (*read_reg_16) (struct device *, u16, u16 *);
|
||||
int (*read_reg_24) (struct device *, u16, u32 *);
|
||||
int (*read_reg_32) (struct device *, u16, u32 *);
|
||||
int (*write_reg_8) (struct device *, u16, u8);
|
||||
int (*write_reg_16) (struct device *, u16, u16);
|
||||
int (*write_reg_24) (struct device *, u16, u32);
|
||||
int (*write_reg_32) (struct device *, u16, u32);
|
||||
int irq;
|
||||
struct mutex buf_lock;
|
||||
struct spi_device *spi;
|
||||
struct i2c_client *i2c;
|
||||
int (*read_reg_8) (struct device *, u16, u8 *);
|
||||
int (*read_reg_16) (struct device *, u16, u16 *);
|
||||
int (*read_reg_24) (struct device *, u16, u32 *);
|
||||
int (*read_reg_32) (struct device *, u16, u32 *);
|
||||
int (*write_reg_8) (struct device *, u16, u8);
|
||||
int (*write_reg_16) (struct device *, u16, u16);
|
||||
int (*write_reg_24) (struct device *, u16, u32);
|
||||
int (*write_reg_32) (struct device *, u16, u32);
|
||||
int irq;
|
||||
struct mutex buf_lock;
|
||||
u8 tx[ADE7854_MAX_TX] ____cacheline_aligned;
|
||||
u8 rx[ADE7854_MAX_RX];
|
||||
|
||||
};
|
||||
|
||||
extern int ade7854_probe(struct ade7854_state *st, struct device *dev);
|
||||
extern int ade7854_remove(struct ade7854_state *st);
|
||||
extern int ade7854_probe(struct iio_dev *indio_dev, struct device *dev);
|
||||
extern int ade7854_remove(struct iio_dev *indio_dev);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue