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

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

drivers/iio/magnetometer/ak8974.c

+6 −0
Original line number Diff line number Diff line
@@ -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 = {

	.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,

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