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Commit 32d9f5e2 authored by Jishnu Prakash's avatar Jishnu Prakash
Browse files

dt-bindings: iio: adc: Add PMIC7 VADC bindings 

Add documentation for PMIC7 VADC peripheral.
PMIC7 ADC has support for clients to read voltage and
current on supported channels connected to the PMIC.
Clients include reading voltage phone power and on board system
thermistors for thermal management. ADCs on certain PMICs have
support to read battery current.

Change-Id: Ieb8ad5779b078dd77838c498b3a4e0bbcf907df8
parent 843d6841

bindings/iio/adc/qcom,spmi-adc5.txt

+15 −6
Original line number Diff line number Diff line
@@ -8,9 +8,10 @@ ADC node: 
- compatible:

    Usage: required

    Value type: <string>

    Definition: Should contain "qcom,spmi-adc5" for PMIC5 ADC driver.

		Should contain "qcom,spmi-adc-rev2" for PMIC refresh ADC driver.

		Should contain "qcom,spmi-adc5-lite" for PMIC5 ADC-lite driver.

    Definition: Should contain "qcom,spmi-adc5" for PMIC5 ADC devices.

        Should contain "qcom,spmi-adc7" for PMIC7 ADC devices.

		Should contain "qcom,spmi-adc-rev2" for PMIC refresh ADC devices.

		Should contain "qcom,spmi-adc5-lite" for PMIC5 ADC-lite devices.



- reg:

    Usage: required for VADC base address
@@ -87,6 +88,8 @@ Channel node properties: 
            Quicker measurements can be made by reducing decimation ratio.

            For PMIC5 ADC, combined two step decimation values are 250, 420 and 840.

            If property is not found, default value of 840 will be used.

            For PMIC7 ADC, combined two step decimation values are 85, 340 and 1360.

            If property is not found, default value of 1360 will be used.

            For PMIC refresh ADC, supported decimation values are 256, 512, 1024.

            If property is not found, default value of 1024 will be used.
@@ -102,7 +105,7 @@ Channel node properties: 
- qcom,hw-settle-time:

    Usage: optional

    Value type: <u32>

    Definition: Time between AMUX getting configured and the ADC starting

    Definition: Time in microseconds between AMUX getting configured and the ADC starting

            conversion.

	    For PMIC5, delay = 15us for value 0,

			100us * (value) for values 0 < value < 11, and
@@ -110,6 +113,12 @@ Channel node properties: 
            Valid values are: 15, 100, 200, 300, 400, 500, 600, 700, 800,

            900 us and 1, 2, 4, 6, 8, 10 ms

            If property is not found, channel will use 15us.

        For PMIC7, delay = 15us for value 0,

            100us * (value) for values < 8, 1ms for value 8 and

            2ms * (value - 8) otherwise.

            Valid values are: 15, 100, 200, 300, 400, 500, 600, 700, 1000,

            2000, 4000, 8000, 16000, 32000, 64000, 128000 us.

            If property is not found, channel will use 15us.

	    For PMIC rev2, delay = 100us * (value) for values 0 < value < 11, and

			2ms * (value - 10) otherwise.

            Valid values are: 0, 100, 200, 300, 400, 500, 600, 700, 800,