Commit 9991f99e authored by Michał Mirosław's avatar Michał Mirosław Committed by Jonathan Cameron

iio: magnetometer: ak8974: mark INT_CLEAR as precious

Reading INT_CLEAR has side effects - disallow reading it via debugfs.
Signed-off-by: default avatarMichał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 408cc6eb
...@@ -661,11 +661,17 @@ static bool ak8974_writeable_reg(struct device *dev, unsigned int reg) ...@@ -661,11 +661,17 @@ 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 = { static const struct regmap_config ak8974_regmap_config = {
.reg_bits = 8, .reg_bits = 8,
.val_bits = 8, .val_bits = 8,
.max_register = 0xff, .max_register = 0xff,
.writeable_reg = ak8974_writeable_reg, .writeable_reg = ak8974_writeable_reg,
.precious_reg = ak8974_precious_reg,
}; };
static int ak8974_probe(struct i2c_client *i2c, static int ak8974_probe(struct i2c_client *i2c,
......
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