Signed-off-by: Sean Nyekjaer <sean.nyekjaer@xxxxxxxxx> --- Changes since v1: - this patch added .../devicetree/bindings/iio/dac/ad5755.txt | 83 ++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/dac/ad5755.txt b/Documentation/devicetree/bindings/iio/dac/ad5755.txt index 4c91583..3aac20d 100644 --- a/Documentation/devicetree/bindings/iio/dac/ad5755.txt +++ b/Documentation/devicetree/bindings/iio/dac/ad5755.txt @@ -15,10 +15,93 @@ Recommended properties: - spi-max-frequency: Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt +Optional properties: +See include/dt-bindings/iio/ad5755.h + - adi,ext_dc_dc_compenstation_resistor: boolean set if using compensation resistor + - adi,dc_dc_phase: can be set to + AD5755_DC_DC_PHASE_ALL_SAME_EDGE + AD5755_DC_DC_PHASE_A_B_SAME_EDGE_C_D_OPP_EDGE + AD5755_DC_DC_PHASE_A_C_SAME_EDGE_B_D_OPP_EDGE + AD5755_DC_DC_PHASE_90_DEGREE + - adi,dc_dc_freq: + AD5755_DC_DC_FREQ_250kHZ + AD5755_DC_DC_FREQ_410kHZ + AD5755_DC_DC_FREQ_650kHZ + - adi,dc_dc_maxv: + AD5755_DC_DC_MAXV_23V + AD5755_DC_DC_MAXV_24V5 + AD5755_DC_DC_MAXV_27V + AD5755_DC_DC_MAXV_29V5 + +Optional for every channel: + - adi,mode: + AD5755_MODE_VOLTAGE_0V_5V + AD5755_MODE_VOLTAGE_0V_10V + AD5755_MODE_VOLTAGE_PLUSMINUS_5V + AD5755_MODE_VOLTAGE_PLUSMINUS_10V + AD5755_MODE_CURRENT_4mA_20mA + AD5755_MODE_CURRENT_0mA_20mA + AD5755_MODE_CURRENT_0mA_24mA + - adi,ext_current_sense_resistor: boolean set if using external + current sense resistor + - adi,enable_voltage_overrange: boolean enable voltage overrange + - adi,slew: Array of slewrate settings should contain 3 fields: + 1: Should be either 0 or 1 in order to enable or disable slew + 2: Slew rate settings: + AD5755_SLEW_RATE_64k + AD5755_SLEW_RATE_32k + AD5755_SLEW_RATE_16k + AD5755_SLEW_RATE_8k + AD5755_SLEW_RATE_4k + AD5755_SLEW_RATE_2k + AD5755_SLEW_RATE_1k + AD5755_SLEW_RATE_500 + AD5755_SLEW_RATE_250 + AD5755_SLEW_RATE_125 + AD5755_SLEW_RATE_64 + AD5755_SLEW_RATE_32 + AD5755_SLEW_RATE_16 + AD5755_SLEW_RATE_8 + AD5755_SLEW_RATE_4 + AD5755_SLEW_RATE_0_5 + 3: Slew step size: + AD5755_SLEW_STEP_SIZE_1 + AD5755_SLEW_STEP_SIZE_2 + AD5755_SLEW_STEP_SIZE_4 + AD5755_SLEW_STEP_SIZE_8 + AD5755_SLEW_STEP_SIZE_16 + AD5755_SLEW_STEP_SIZE_32 + AD5755_SLEW_STEP_SIZE_64 + AD5755_SLEW_STEP_SIZE_128 + AD5755_SLEW_STEP_SIZE_256 + Example: dac@0 { compatible = "adi,ad5755"; reg = <0>; spi-max-frequency = <1000000>; spi-cpha; + adi,dc_dc_phase = <AD5755_DC_DC_PHASE_ALL_SAME_EDGE>; + adi,dc_dc_freq = <AD5755_DC_DC_FREQ_410kHZ>; + adi,dc_dc_maxv = <AD5755_DC_DC_MAXV_23V>; + channel@0 { + adi,mode = <AD5755_MODE_CURRENT_4mA_20mA>; + adi,ext_current_sense_resistor; + adi,slew = <0 AD5755_SLEW_RATE_64k AD5755_SLEW_STEP_SIZE_1>; + }; + channel@1 { + adi,mode = <AD5755_MODE_CURRENT_4mA_20mA>; + adi,ext_current_sense_resistor; + adi,slew = <0 AD5755_SLEW_RATE_64k AD5755_SLEW_STEP_SIZE_1>; + }; + channel@2 { + adi,mode = <AD5755_MODE_CURRENT_4mA_20mA>; + adi,ext_current_sense_resistor; + adi,slew = <0 AD5755_SLEW_RATE_64k AD5755_SLEW_STEP_SIZE_1>; + }; + channel@3 { + adi,mode = <AD5755_MODE_CURRENT_4mA_20mA>; + adi,ext_current_sense_resistor; + adi,slew = <0 AD5755_SLEW_RATE_64k AD5755_SLEW_STEP_SIZE_1>; + }; }; -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html