> -----Original Message----- > From: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > Sent: Thursday, May 23, 2024 2:40 PM > To: Paller, Kim Seer <KimSeer.Paller@xxxxxxxxxx>; linux- > kernel@xxxxxxxxxxxxxxx; linux-iio@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx > Cc: Jonathan Cameron <jic23@xxxxxxxxxx>; David Lechner > <dlechner@xxxxxxxxxxxx>; Lars-Peter Clausen <lars@xxxxxxxxxx>; Liam > Girdwood <lgirdwood@xxxxxxxxx>; Mark Brown <broonie@xxxxxxxxxx>; > Dimitri Fedrau <dima.fedrau@xxxxxxxxx>; Krzysztof Kozlowski > <krzk+dt@xxxxxxxxxx>; Rob Herring <robh@xxxxxxxxxx>; Conor Dooley > <conor+dt@xxxxxxxxxx>; Hennerich, Michael > <Michael.Hennerich@xxxxxxxxxx>; Nuno Sá <noname.nuno@xxxxxxxxx> > Subject: Re: [PATCH v2 3/5] dt-bindings: iio: dac: Add adi,ltc2664.yaml > > [External] > > On 23/05/2024 05:19, Kim Seer Paller wrote: > > Add documentation for ltc2664. > > > > > > + > > + ref-supply: > > + description: > > + Reference Input/Output. The voltage at the REF pin sets the full-scale > > + range of all channels. If not provided the internal reference is used and > > + also provided on the VREF pin. > > + > > + clr-gpios: > > + description: > > + Active-low Asynchronous Clear Input. A logic low at this level-triggered > > + input clears the part to the reset code and range determined by the > > + hardwired option chosen using the MSPAN pins. The control registers are > > + cleared to zero. > > So this is a reset gpio? Yes, this is a reset gpio. Kim > > > + maxItems: 1 > > + > > + adi,manual-span-operation-config: > > + description: > > + This property must mimic the MSPAN pin configurations. By tying the > MSPAN > > + pins (MSP2, MSP1 and MSP0) to GND and/or VCC, any output range can > be > > + hardware-configured with different mid-scale or zero-scale reset options. > > + The hardware configuration is latched during power on reset for proper > > + operation. > > + 0 - MPS2=GND, MPS1=GND, MSP0=GND > > + 1 - MPS2=GND, MPS1=GND, MSP0=VCC > > + 2 - MPS2=GND, MPS1=VCC, MSP0=GND > > + 3 - MPS2=GND, MPS1=VCC, MSP0=VCC > > + 4 - MPS2=VCC, MPS1=GND, MSP0=GND > > + 5 - MPS2=VCC, MPS1=GND, MSP0=VCC > > + 6 - MPS2=VCC, MPS1=VCC, MSP0=GND > > + 7 - MPS2=VCC, MPS1=VCC, MSP0=VCC (enables SoftSpan feature) > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + enum: [0, 1, 2, 3, 4, 5, 6, 7] > > + default: 7 > > + > > + io-channels: > > + description: > > + Analog multiplexer output. VOUT0-VOUT3, MUXIN0-MUXIN3, REFLO, > REF, V+, V-, > > That's not output but input. > > > + and a temperature monitor output can be internally routed to the > MUXOUT pin. > > Needs maxItems > > > + > > + '#address-cells': > > + const: 1 > > + > > + '#size-cells': > > + const: 0 > > + > > > Best regards, > Krzysztof
