diff options
| author | Marcelo Schmitt <marcelo.schmitt@analog.com> | 2023-12-16 20:46:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-01 03:16:58 +0300 |
| commit | 6f57121e9cbe762e421e4f20fb046406db6c2c61 (patch) | |
| tree | c3cbf7672cc11e11cb7bf14dbae2ae9b3f57510d /drivers/iio | |
| parent | fafda9f08a7ce689e74206a4e2ff802dae7ac336 (diff) | |
| download | linux-6f57121e9cbe762e421e4f20fb046406db6c2c61.tar.xz | |
iio: adc: ad7091r: Set alert bit in config register
[ Upstream commit 149694f5e79b0c7a36ceb76e7c0d590db8f151c1 ]
The ad7091r-base driver sets up an interrupt handler for firing events
when inputs are either above or below a certain threshold.
However, for the interrupt signal to come from the device it must be
configured to enable the ALERT/BUSY/GPO pin to be used as ALERT, which
was not being done until now.
Enable interrupt signals on the ALERT/BUSY/GPO pin by setting the proper
bit in the configuration register.
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Link: https://lore.kernel.org/r/e8da2ee98d6df88318b14baf3dc9630e20218418.1702746240.git.marcelo.schmitt1@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Stable-dep-of: 020e71c7ffc2 ("iio: adc: ad7091r: Allow users to configure device events")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ad7091r-base.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iio/adc/ad7091r-base.c b/drivers/iio/adc/ad7091r-base.c index 0e5d3d2e9c98..8aaa854f816f 100644 --- a/drivers/iio/adc/ad7091r-base.c +++ b/drivers/iio/adc/ad7091r-base.c @@ -28,6 +28,7 @@ #define AD7091R_REG_RESULT_CONV_RESULT(x) ((x) & 0xfff) /* AD7091R_REG_CONF */ +#define AD7091R_REG_CONF_ALERT_EN BIT(4) #define AD7091R_REG_CONF_AUTO BIT(8) #define AD7091R_REG_CONF_CMD BIT(10) @@ -232,6 +233,11 @@ int ad7091r_probe(struct device *dev, const char *name, iio_dev->channels = chip_info->channels; if (irq) { + ret = regmap_update_bits(st->map, AD7091R_REG_CONF, + AD7091R_REG_CONF_ALERT_EN, BIT(4)); + if (ret) + return ret; + ret = devm_request_threaded_irq(dev, irq, NULL, ad7091r_event_handler, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, name, iio_dev); |