Re: [PATCH 2/3] iio: adc: Add PMIC7 ADC bindings

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On Mon, 6 Apr 2020 17:15:21 +0530
Jishnu Prakash <jprakash@xxxxxxxxxxxxxx> wrote:

> Hi Jonathan,
> 
> On 3/28/2020 10:24 PM, Jonathan Cameron wrote:
> > On Tue, 24 Mar 2020 21:14:09 +0530
> > Jishnu Prakash <jprakash@xxxxxxxxxxxxxx> wrote:
> >  
> >> Add documentation for PMIC7 ADC peripheral. For PMIC7 ADC, all SW
> >> communication to ADC goes through PMK8350, which communicates with
> >> other PMICs through PBS.
> >>
> >> Signed-off-by: Jishnu Prakash <jprakash@xxxxxxxxxxxxxx>
> >> ---
> >>   .../bindings/iio/adc/qcom,spmi-vadc.yaml           | 28 ++++++++++++++++------
> >>   1 file changed, 21 insertions(+), 7 deletions(-)
> >>
> >> diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
> >> index 72db14c..20f010c 100644
> >> --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
> >> +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
> >> @@ -13,7 +13,7 @@ maintainers:
> >>   description: |
> >>     SPMI PMIC voltage ADC (VADC) provides interface to clients to read
> >>     voltage. The VADC is a 15-bit sigma-delta ADC.
> >> -  SPMI PMIC5 voltage ADC (ADC) provides interface to clients to read
> >> +  SPMI PMIC5/PMIC7 voltage ADC (ADC) provides interface to clients to read
> >>     voltage. The VADC is a 16-bit sigma-delta ADC.
> >>   
> >>   properties:
> >> @@ -23,6 +23,7 @@ properties:
> >>         - qcom,spmi-adc5
> >>         - qcom,spmi-adc-rev2
> >>         - qcom,pms405-adc
> >> +      - qcom,spmi-adc7
> >>   
> >>     reg:
> >>       description: VADC base address in the SPMI PMIC register map
> >> @@ -65,6 +66,8 @@ patternProperties:
> >>           description: |
> >>             ADC channel number.
> >>             See include/dt-bindings/iio/qcom,spmi-vadc.h
> >> +          For PMIC7 ADC, the channel numbers are specified separately per PMIC
> >> +          in the PMIC-specific files in include/dt-bindings/iio/.  
> > That makes me thing we really should have separate compatibles.  The
> > parts clearly have differences, even if we haven't needed to use them
> > explicitly as yet.  
> I'm not sure what you mean by this. We have added a new compatible 
> property "qcom,spmi-adc7" for PMIC7 ADC.

I've no idea what I meant either :)

Jonathan
> >  
> >>   
> >>         label:
> >>           description: |
> >> @@ -72,7 +75,7 @@ patternProperties:
> >>               For thermistor inputs connected to generic AMUX or GPIO inputs
> >>               these can vary across platform for the same pins. Hence select
> >>               the platform schematics name for this channel. It is required
> >> -            for "qcom,spmi-adc5" and "qcom,spmi-adc-rev2".
> >> +            for "qcom,spmi-adc5", "qcom,spmi-adc7" and "qcom,spmi-adc-rev2".
> >>           allOf:
> >>             - $ref: /schemas/types.yaml#/definitions/string
> >>   
> >>  





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