staging:iio:adc:ad7291: Fix AD7291_T_SENSE_MASK

#define AD7291_T_AVERAGE		3

#define AD7291_VOLTAGE_LIMIT_BASE	4

#define AD7291_VOLTAGE_LIMIT_COUNT	8

#define AD7291_T_SENSE_HIGH		0x1c

#define AD7291_T_SENSE_LOW		0x1d

#define AD7291_T_SENSE_HYST		0x1e

#define AD7291_VOLTAGE_ALERT_STATUS	0x1f

#define AD7291_T_SENSE_HIGH		0x1C

#define AD7291_T_SENSE_LOW		0x1D

#define AD7291_T_SENSE_HYST		0x1E

#define AD7291_VOLTAGE_ALERT_STATUS	0x1F

#define AD7291_T_ALERT_STATUS		0x20

/*

 * AD7291 command

 */

#define AD7291_AUTOCYCLE		0x1

#define AD7291_RESET			0x2

#define AD7291_ALERT_CLEAR		0x4

#define AD7291_ALERT_POLARITY		0x8

#define AD7291_EXT_REF			0x10

#define AD7291_NOISE_DELAY		0x20

#define AD7291_T_SENSE_MASK		0x40

#define AD7291_VOLTAGE_MASK		0xff00

#define AD7291_AUTOCYCLE		(1 << 0)

#define AD7291_RESET			(1 << 1)

#define AD7291_ALERT_CLEAR		(1 << 2)

#define AD7291_ALERT_POLARITY		(1 << 3)

#define AD7291_EXT_REF			(1 << 4)

#define AD7291_NOISE_DELAY		(1 << 5)

#define AD7291_T_SENSE_MASK		(1 << 7)

#define AD7291_VOLTAGE_MASK		0xFF00

#define AD7291_VOLTAGE_OFFSET		0x8

/*

 * AD7291 value masks

 */

#define AD7291_CHANNEL_MASK		0xf000

#define AD7291_VALUE_MASK		0xfff

#define AD7291_CHANNEL_MASK		0xF000

#define AD7291_VALUE_MASK		0xFFF

#define AD7291_T_VALUE_SIGN		0x400

#define AD7291_T_VALUE_FLOAT_OFFSET	2

#define AD7291_T_VALUE_FLOAT_MASK	0x2