Reading INT_CLEAR has side effects - disallow reading it via debugfs.
Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>
---
drivers/iio/magnetometer/ak8974.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index ab204f8560e3..d8c45206ba00 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/drivers/iio/magnetometer/ak8974.c
@@ -662,11 +662,17 @@ static bool ak8974_writeable_reg(struct device *dev, unsigned int reg)
}
}
+static bool ak8974_precious_reg(struct device *dev, unsigned int reg)
+{
+ return reg == AK8974_INT_CLEAR;
+}
+
static const struct regmap_config ak8974_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
.writeable_reg = ak8974_writeable_reg,
+ .precious_reg = ak8974_precious_reg,
};
static int ak8974_probe(struct i2c_client *i2c,
--
2.11.0
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