diff options
Diffstat (limited to 'drivers/staging/iio/meter')
-rw-r--r-- | drivers/staging/iio/meter/ade7753.c | 8 | ||||
-rw-r--r-- | drivers/staging/iio/meter/ade7754.c | 1 | ||||
-rw-r--r-- | drivers/staging/iio/meter/ade7758_core.c | 1 | ||||
-rw-r--r-- | drivers/staging/iio/meter/ade7758_trigger.c | 1 | ||||
-rw-r--r-- | drivers/staging/iio/meter/ade7759.c | 28 | ||||
-rw-r--r-- | drivers/staging/iio/meter/ade7854.c | 1 |
6 files changed, 24 insertions, 16 deletions
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index ce26abdeab92..b704b24b34db 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -81,10 +81,12 @@ * @tx: transmit buffer * @rx: receive buffer * @buf_lock: mutex to protect tx and rx + * @lock: protect sensor data **/ struct ade7753_state { struct spi_device *us; struct mutex buf_lock; + struct mutex lock; /* protect sensor data */ u8 tx[ADE7753_MAX_TX] ____cacheline_aligned; u8 rx[ADE7753_MAX_RX]; }; @@ -483,7 +485,7 @@ static ssize_t ade7753_write_frequency(struct device *dev, if (!val) return -EINVAL; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); t = 27900 / val; if (t > 0) @@ -504,7 +506,7 @@ static ssize_t ade7753_write_frequency(struct device *dev, ret = ade7753_spi_write_reg_16(dev, ADE7753_MODE, reg); out: - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return ret ? ret : len; } @@ -561,7 +563,6 @@ static const struct attribute_group ade7753_attribute_group = { static const struct iio_info ade7753_info = { .attrs = &ade7753_attribute_group, - .driver_module = THIS_MODULE, }; static int ade7753_probe(struct spi_device *spi) @@ -580,6 +581,7 @@ static int ade7753_probe(struct spi_device *spi) st = iio_priv(indio_dev); st->us = spi; mutex_init(&st->buf_lock); + mutex_init(&st->lock); indio_dev->name = spi->dev.driver->name; indio_dev->dev.parent = &spi->dev; diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c index be0df3fe4230..3a1e342d75fb 100644 --- a/drivers/staging/iio/meter/ade7754.c +++ b/drivers/staging/iio/meter/ade7754.c @@ -601,7 +601,6 @@ static const struct attribute_group ade7754_attribute_group = { static const struct iio_info ade7754_info = { .attrs = &ade7754_attribute_group, - .driver_module = THIS_MODULE, }; static int ade7754_probe(struct spi_device *spi) diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 40498af4dc46..7b7ffe5ed186 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -827,7 +827,6 @@ static const struct iio_info ade7758_info = { .attrs = &ade7758_attribute_group, .read_raw = &ade7758_read_raw, .write_raw = &ade7758_write_raw, - .driver_module = THIS_MODULE, }; static int ade7758_probe(struct spi_device *spi) diff --git a/drivers/staging/iio/meter/ade7758_trigger.c b/drivers/staging/iio/meter/ade7758_trigger.c index 5b35a7f08f4f..1f0d1a0cf889 100644 --- a/drivers/staging/iio/meter/ade7758_trigger.c +++ b/drivers/staging/iio/meter/ade7758_trigger.c @@ -53,7 +53,6 @@ static int ade7758_trig_try_reen(struct iio_trigger *trig) } static const struct iio_trigger_ops ade7758_trigger_ops = { - .owner = THIS_MODULE, .set_trigger_state = &ade7758_data_rdy_trigger_set_state, .try_reenable = &ade7758_trig_try_reen, }; diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index 1691760339da..cd75f60aded3 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -60,7 +60,7 @@ /** * struct ade7759_state - device instance specific data * @us: actual spi_device - * @buf_lock: mutex to protect tx and rx + * @buf_lock: mutex to protect tx and rx and write frequency * @tx: transmit buffer * @rx: receive buffer **/ @@ -89,19 +89,30 @@ static int ade7759_spi_write_reg_8(struct device *dev, return ret; } -static int ade7759_spi_write_reg_16(struct device *dev, +/*Unlocked version of ade7759_spi_write_reg_16 function */ +static int __ade7759_spi_write_reg_16(struct device *dev, u8 reg_address, u16 value) { - int ret; struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7759_state *st = iio_priv(indio_dev); - mutex_lock(&st->buf_lock); st->tx[0] = ADE7759_WRITE_REG(reg_address); st->tx[1] = (value >> 8) & 0xFF; st->tx[2] = value & 0xFF; - ret = spi_write(st->us, st->tx, 3); + return spi_write(st->us, st->tx, 3); +} + +static int ade7759_spi_write_reg_16(struct device *dev, + u8 reg_address, + u16 value) +{ + int ret; + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ade7759_state *st = iio_priv(indio_dev); + + mutex_lock(&st->buf_lock); + ret = __ade7759_spi_write_reg_16(dev, reg_address, value); mutex_unlock(&st->buf_lock); return ret; @@ -429,7 +440,7 @@ static ssize_t ade7759_write_frequency(struct device *dev, if (!val) return -EINVAL; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->buf_lock); t = 27900 / val; if (t > 0) @@ -447,10 +458,10 @@ static ssize_t ade7759_write_frequency(struct device *dev, reg &= ~(3 << 13); reg |= t << 13; - ret = ade7759_spi_write_reg_16(dev, ADE7759_MODE, reg); + ret = __ade7759_spi_write_reg_16(dev, ADE7759_MODE, reg); out: - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->buf_lock); return ret ? ret : len; } @@ -493,7 +504,6 @@ static const struct attribute_group ade7759_attribute_group = { static const struct iio_info ade7759_info = { .attrs = &ade7759_attribute_group, - .driver_module = THIS_MODULE, }; static int ade7759_probe(struct spi_device *spi) diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c index 70612da64a8b..90d07cdca4b8 100644 --- a/drivers/staging/iio/meter/ade7854.c +++ b/drivers/staging/iio/meter/ade7854.c @@ -530,7 +530,6 @@ static const struct attribute_group ade7854_attribute_group = { static const struct iio_info ade7854_info = { .attrs = &ade7854_attribute_group, - .driver_module = THIS_MODULE, }; int ade7854_probe(struct iio_dev *indio_dev, struct device *dev) |