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iio: dac: Convert powerdown read callbacks to sysfs_emit()

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Update DAC drivers powerdown attribute show callback to use the new
sysfs_emit() function.

sysfs_emit() is preferred over raw s*printf() for sysfs attributes since it
knows about the sysfs buffer specifics and has some built-in sanity checks.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210320071405.9347-5-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lars-Peter Clausen 2021-03-20 08:14:05 +01:00 committed by Jonathan Cameron
parent 6b92ba0a30
commit f46ac00978
19 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iio/dac/ad5064.c
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@ -277,7 +277,7 @@ static ssize_t ad5064_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5064_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down[chan->channel]);
return sysfs_emit(buf, "%d\n", st->pwr_down[chan->channel]);
}
static ssize_t ad5064_write_dac_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ad5360.c
View File

@ -255,7 +255,7 @@ static ssize_t ad5360_read_dac_powerdown(struct device *dev,
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad5360_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", (bool)(st->ctrl & AD5360_SF_CTRL_PWR_DOWN));
return sysfs_emit(buf, "%d\n", (bool)(st->ctrl & AD5360_SF_CTRL_PWR_DOWN));
}
static int ad5360_update_ctrl(struct iio_dev *indio_dev, unsigned int set,

2
drivers/iio/dac/ad5380.c
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@ -85,7 +85,7 @@ static ssize_t ad5380_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5380_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down);
return sysfs_emit(buf, "%d\n", st->pwr_down);
}
static ssize_t ad5380_write_dac_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ad5446.c
View File

@ -100,7 +100,7 @@ static ssize_t ad5446_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5446_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down);
return sysfs_emit(buf, "%d\n", st->pwr_down);
}
static ssize_t ad5446_write_dac_powerdown(struct iio_dev *indio_dev,

4
drivers/iio/dac/ad5504.c
View File

@ -170,8 +170,8 @@ static ssize_t ad5504_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5504_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n",
!(st->pwr_down_mask & (1 << chan->channel)));
return sysfs_emit(buf, "%d\n",
!(st->pwr_down_mask & (1 << chan->channel)));
}
static ssize_t ad5504_write_dac_powerdown(struct iio_dev *indio_dev,

4
drivers/iio/dac/ad5624r_spi.c
View File

@ -117,8 +117,8 @@ static ssize_t ad5624r_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5624r_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n",
!!(st->pwr_down_mask & (1 << chan->channel)));
return sysfs_emit(buf, "%d\n",
!!(st->pwr_down_mask & (1 << chan->channel)));
}
static ssize_t ad5624r_write_dac_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ad5686.c
View File

@ -57,7 +57,7 @@ static ssize_t ad5686_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5686_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", !!(st->pwr_down_mask &
return sysfs_emit(buf, "%d\n", !!(st->pwr_down_mask &
(0x3 << (chan->channel * 2))));
}

4
drivers/iio/dac/ad5755.c
View File

@ -399,8 +399,8 @@ static ssize_t ad5755_read_powerdown(struct iio_dev *indio_dev, uintptr_t priv,
{
struct ad5755_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n",
(bool)(st->pwr_down & (1 << chan->channel)));
return sysfs_emit(buf, "%d\n",
(bool)(st->pwr_down & (1 << chan->channel)));
}
static ssize_t ad5755_write_powerdown(struct iio_dev *indio_dev, uintptr_t priv,

2
drivers/iio/dac/ad5758.c
View File

@ -574,7 +574,7 @@ static ssize_t ad5758_read_powerdown(struct iio_dev *indio_dev,
{
struct ad5758_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down);
return sysfs_emit(buf, "%d\n", st->pwr_down);
}
static ssize_t ad5758_write_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ad5770r.c
View File

@ -433,7 +433,7 @@ static ssize_t ad5770r_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5770r_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->ch_pwr_down[chan->channel]);
return sysfs_emit(buf, "%d\n", st->ch_pwr_down[chan->channel]);
}
static ssize_t ad5770r_write_dac_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ad5791.c
View File

@ -177,7 +177,7 @@ static ssize_t ad5791_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad5791_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down);
return sysfs_emit(buf, "%d\n", st->pwr_down);
}
static ssize_t ad5791_write_dac_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ad7303.c
View File

@ -65,7 +65,7 @@ static ssize_t ad7303_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ad7303_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", (bool)(st->config &
return sysfs_emit(buf, "%d\n", (bool)(st->config &
AD7303_CFG_POWER_DOWN(chan->channel)));
}

4
drivers/iio/dac/ltc2632.c
View File

@ -135,8 +135,8 @@ static ssize_t ltc2632_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct ltc2632_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n",
!!(st->powerdown_cache_mask & (1 << chan->channel)));
return sysfs_emit(buf, "%d\n",
!!(st->powerdown_cache_mask & (1 << chan->channel)));
}
static ssize_t ltc2632_write_dac_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/max5821.c
View File

@ -84,7 +84,7 @@ static ssize_t max5821_read_dac_powerdown(struct iio_dev *indio_dev,
{
struct max5821_data *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->powerdown[chan->channel]);
return sysfs_emit(buf, "%d\n", st->powerdown[chan->channel]);
}
static int max5821_sync_powerdown_mode(struct max5821_data *data,

2
drivers/iio/dac/mcp4725.c
View File

@ -167,7 +167,7 @@ static ssize_t mcp4725_read_powerdown(struct iio_dev *indio_dev,
{
struct mcp4725_data *data = iio_priv(indio_dev);
return sprintf(buf, "%d\n", data->powerdown);
return sysfs_emit(buf, "%d\n", data->powerdown);
}
static ssize_t mcp4725_write_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/stm32-dac.c
View File

@ -210,7 +210,7 @@ static ssize_t stm32_dac_read_powerdown(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
return sprintf(buf, "%d\n", ret ? 0 : 1);
return sysfs_emit(buf, "%d\n", ret ? 0 : 1);
}
static ssize_t stm32_dac_write_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ti-dac082s085.c
View File

@ -121,7 +121,7 @@ static ssize_t ti_dac_read_powerdown(struct iio_dev *indio_dev,
{
struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
return sprintf(buf, "%d\n", ti_dac->powerdown);
return sysfs_emit(buf, "%d\n", ti_dac->powerdown);
}
static ssize_t ti_dac_write_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ti-dac5571.c
View File

@ -166,7 +166,7 @@ static ssize_t dac5571_read_powerdown(struct iio_dev *indio_dev,
{
struct dac5571_data *data = iio_priv(indio_dev);
return sprintf(buf, "%d\n", data->powerdown[chan->channel]);
return sysfs_emit(buf, "%d\n", data->powerdown[chan->channel]);
}
static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev,

2
drivers/iio/dac/ti-dac7311.c
View File

@ -110,7 +110,7 @@ static ssize_t ti_dac_read_powerdown(struct iio_dev *indio_dev,
{
struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
return sprintf(buf, "%d\n", ti_dac->powerdown);
return sysfs_emit(buf, "%d\n", ti_dac->powerdown);
}
static ssize_t ti_dac_write_powerdown(struct iio_dev *indio_dev,