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dt-bindings: thermal: qcom: add PMIC5 Gen2 ADC_TM bindings 

Add documentation for PMIC5 Gen2 ADC_TM peripheral.
It is used for monitoring ADC channel thresholds for PMIC7-type
PMICs. It is present on PMK8350, like PMIC7 ADC and can be used
to monitor up to 8 ADC channels, from any of the PMIC7 PMICs
on a target, through PBS(Programmable Boot Sequence).

Signed-off-by: Jishnu Prakash <quic_jprakash@quicinc.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1648991869-20899-2-git-send-email-quic_jprakash@quicinc.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Jishnu Prakash 2022-04-03 18:47:46 +05:30 committed by Daniel Lezcano
parent 3277e022a1
commit e46e003a48
1 changed files with 108 additions and 2 deletions
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110
Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml
View File

@ -10,7 +10,9 @@ maintainers:
properties:
compatible:
const: qcom,spmi-adc-tm5
enum:
- qcom,spmi-adc-tm5
- qcom,spmi-adc-tm5-gen2
reg:
maxItems: 1
@ -33,6 +35,7 @@ properties:
qcom,avg-samples:
$ref: /schemas/types.yaml#/definitions/uint32
description: Number of samples to be used for measurement.
Not applicable for Gen2 ADC_TM peripheral.
enum:
- 1
- 2
@ -45,6 +48,7 @@ properties:
$ref: /schemas/types.yaml#/definitions/uint32
description: This parameter is used to decrease ADC sampling rate.
Quicker measurements can be made by reducing decimation ratio.
Not applicable for Gen2 ADC_TM peripheral.
enum:
- 250
- 420
@ -93,6 +97,29 @@ patternProperties:
- const: 1
- enum: [ 1, 3, 4, 6, 20, 8, 10 ]
qcom,avg-samples:
$ref: /schemas/types.yaml#/definitions/uint32
description: Number of samples to be used for measurement.
This property in child node is applicable only for Gen2 ADC_TM peripheral.
enum:
- 1
- 2
- 4
- 8
- 16
default: 1
qcom,decimation:
$ref: /schemas/types.yaml#/definitions/uint32
description: This parameter is used to decrease ADC sampling rate.
Quicker measurements can be made by reducing decimation ratio.
This property in child node is applicable only for Gen2 ADC_TM peripheral.
enum:
- 85
- 340
- 1360
default: 1360
required:
- reg
- io-channels
@ -100,6 +127,31 @@ patternProperties:
additionalProperties:
false
allOf:
- if:
properties:
compatible:
contains:
const: qcom,spmi-adc-tm5
then:
patternProperties:
"^([-a-z0-9]*)@[0-7]$":
properties:
qcom,decimation: false
qcom,avg-samples: false
- if:
properties:
compatible:
contains:
const: qcom,spmi-adc-tm5-gen2
then:
properties:
qcom,avg-samples: false
qcom,decimation: false
required:
- compatible
- reg
@ -124,7 +176,7 @@ examples:
#size-cells = <0>;
#io-channel-cells = <1>;
/* Other propreties are omitted */
/* Other properties are omitted */
conn-therm@4f {
reg = <ADC5_AMUX_THM3_100K_PU>;
qcom,ratiometric;
@ -148,4 +200,58 @@ examples:
};
};
};
- |
#include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h>
#include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h>
#include <dt-bindings/interrupt-controller/irq.h>
spmi_bus {
#address-cells = <1>;
#size-cells = <0>;
pmk8350_vadc: adc@3100 {
reg = <0x3100>;
compatible = "qcom,spmi-adc7";
#address-cells = <1>;
#size-cells = <0>;
#io-channel-cells = <1>;
/* Other properties are omitted */
xo-therm@44 {
reg = <PMK8350_ADC7_AMUX_THM1_100K_PU>;
qcom,ratiometric;
qcom,hw-settle-time = <200>;
};
conn-therm@47 {
reg = <PM8350_ADC7_AMUX_THM4_100K_PU>;
qcom,ratiometric;
qcom,hw-settle-time = <200>;
};
};
pmk8350_adc_tm: adc-tm@3400 {
compatible = "qcom,spmi-adc-tm5-gen2";
reg = <0x3400>;
interrupts = <0x0 0x34 0x0 IRQ_TYPE_EDGE_RISING>;
#thermal-sensor-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
pmk8350-xo-therm@0 {
reg = <0>;
io-channels = <&pmk8350_vadc PMK8350_ADC7_AMUX_THM1_100K_PU>;
qcom,decimation = <340>;
qcom,ratiometric;
qcom,hw-settle-time-us = <200>;
};
conn-therm@1 {
reg = <1>;
io-channels = <&pmk8350_vadc PM8350_ADC7_AMUX_THM4_100K_PU>;
qcom,avg-samples = <2>;
qcom,ratiometric;
qcom,hw-settle-time-us = <200>;
};
};
};
...