@@ -36,6 +36,9 @@ properties:
avcc-supply: true
interrupts:
+ description:
+ The BUSY pin falling edge indicates that the conversion is over, and thus
+ new data is available.
maxItems: 1
adi,conversion-start-gpios:
@@ -48,8 +51,9 @@ properties:
reset-gpios:
description:
Must be the device tree identifier of the RESET pin. If specified, it will
- be asserted during driver probe. As the line is active high, it should be
- marked GPIO_ACTIVE_HIGH.
+ be asserted during driver probe. On the AD7606x, as the line is active
+ high, it should be marked GPIO_ACTIVE_HIGH. On the AD7616, as the line is
+ active low, it should be marked GPIO_ACTIVE_LOW.
maxItems: 1
standby-gpios:
@@ -62,36 +66,39 @@ properties:
adi,first-data-gpios:
description:
- Must be the device tree identifier of the FRSTDATA pin. The FRSTDATA
+ Must be the device tree identifier of the FRSTDATA pin. The FRSTDATA
output indicates when the first channel, V1, is being read back on either
- the parallel, byte or serial interface. As the line is active high, it
+ the parallel, byte or serial interface. As the line is active high, it
should be marked GPIO_ACTIVE_HIGH.
maxItems: 1
adi,range-gpios:
description:
- Must be the device tree identifier of the RANGE pin. The polarity on this
+ Must be the device tree identifier of the RANGE pin. The state on this
pin determines the input range of the analog input channels. If this pin
is tied to a logic high, the analog input range is ±10V for all channels.
- If this pin is tied to a logic low, the analog input range is ±5V for all
- channels. As the line is active high, it should be marked
+ On the AD760X, if this pin is tied to a logic low, the analog input range
+ is ±5V for all channels. As the line is active high, it should be marked
GPIO_ACTIVE_HIGH.
maxItems: 1
adi,oversampling-ratio-gpios:
description:
Must be the device tree identifier of the over-sampling mode pins. As the
- line is active high, it should be marked GPIO_ACTIVE_HIGH.
+ line is active high, it should be marked GPIO_ACTIVE_HIGH. On the AD7606X
+ parts that support it, if all 3 pins are tied to a logic high, software
+ mode is enabled.
maxItems: 3
adi,sw-mode:
description:
- Software mode of operation, so far available only for ad7616 and ad7606b.
+ Software mode of operation, so far available only for AD7616 and AD7606B.
It is enabled when all three oversampling mode pins are connected to high
- level. The device is configured by the corresponding registers. If the
- adi,oversampling-ratio-gpios property is defined, then the driver will set
- the oversampling gpios to high. Otherwise, it is assumed that the pins are
- hardwired to VDD.
+ level for the AD7606B, or both the range selection are connected to high
+ level for the AD7616. The device is configured by the corresponding
+ registers. If the adi,oversampling-ratio-gpios property is defined, then
+ the driver will set the oversampling gpios to high. Otherwise, it is
+ assumed that the pins are hardwired to VDD.
type: boolean
required: