5.15-stable review patch. If anyone has any objections, please let me know.
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From: Marcelo Schmitt marcelo.schmitt@analog.com
[ 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/e8da2ee98d6df88318b14baf3dc9630e20218418.170274624... 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 --- drivers/iio/adc/ad7091r-base.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/iio/adc/ad7091r-base.c b/drivers/iio/adc/ad7091r-base.c index 811f04448d8d..ad089c0ff953 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);