From 1c412a321590d4a01698b85710e29b1e575de1a7 Mon Sep 17 00:00:00 2001 From: Stefan Popa Date: Mon, 20 Aug 2018 17:53:43 +0300 Subject: [PATCH] iio: adxl372: Provide validate_trigger and validate_device callbacks This patch provides a validate_device callback for the trigger which makes sure that other devices are rejected. Signed-off-by: Stefan Popa Signed-off-by: Jonathan Cameron --- drivers/iio/accel/adxl372.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c index d2fdc7581fe0..5a039ba0b3eb 100644 --- a/drivers/iio/accel/adxl372.c +++ b/drivers/iio/accel/adxl372.c @@ -762,11 +762,24 @@ static int adxl372_dready_trig_set_state(struct iio_trigger *trig, return adxl372_set_interrupts(st, mask, 0); } +static int adxl372_validate_trigger(struct iio_dev *indio_dev, + struct iio_trigger *trig) +{ + struct adxl372_state *st = iio_priv(indio_dev); + + if (st->dready_trig != trig) + return -EINVAL; + + return 0; +} + static const struct iio_trigger_ops adxl372_trigger_ops = { + .validate_device = &iio_trigger_validate_own_device, .set_trigger_state = adxl372_dready_trig_set_state, }; static const struct iio_info adxl372_info = { + .validate_trigger = &adxl372_validate_trigger, .read_raw = adxl372_read_raw, .debugfs_reg_access = &adxl372_reg_access, .hwfifo_set_watermark = adxl372_set_watermark, -- 2.45.2