From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Amit Kucheria <amitk@kernel.org>,
Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org, linux-iio@vger.kernel.org,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
Jishnu Prakash <jprakash@qti.qualcomm.com>
Subject: [PATCH v6 01/10] dt-bindings: thermal: qcom: add adc-thermal monitor bindings
Date: Wed, 30 Sep 2020 13:01:54 +0300 [thread overview]
Message-ID: <20200930100203.1988374-2-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20200930100203.1988374-1-dmitry.baryshkov@linaro.org>
Add bindings for thermal monitor, part of Qualcomm PMIC5 chips. It is a
close counterpart of VADC part of those PMICs.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
.../bindings/thermal/qcom-spmi-adc-tm5.yaml | 154 ++++++++++++++++++
1 file changed, 154 insertions(+)
create mode 100644 Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml
diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml
new file mode 100644
index 000000000000..9da2b349030d
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml
@@ -0,0 +1,154 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/qcom-spmi-adc-tm5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's SPMI PMIC ADC Thermal Monitoring
+maintainers:
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+properties:
+ compatible:
+ const: qcom,spmi-adc-tm5
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ "#thermal-sensor-cells":
+ const: 1
+ description:
+ Number of cells required to uniquely identify the thermal sensors. Since
+ we have multiple sensors this is set to 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ qcom,avg-samples:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Number of samples to be used for measurement.
+ enum:
+ - 1
+ - 2
+ - 4
+ - 8
+ - 16
+ default: 1
+
+ qcom,decimation:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This parameter is used to decrease ADC sampling rate.
+ Quicker measurements can be made by reducing decimation ratio.
+ enum:
+ - 250
+ - 420
+ - 840
+ default: 840
+
+patternProperties:
+ "^([-a-z0-9]*)@[0-7]$":
+ type: object
+ description:
+ Represent one thermal sensor.
+
+ properties:
+ reg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Specify the sensor channel. There are 8 channels in PMIC5's ADC TM
+ minimum: 0
+ maximum: 7
+
+ io-channels:
+ description:
+ From common IIO binding. Used to pipe PMIC ADC channel to thermal monitor
+
+ qcom,ratiometric:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Channel calibration type.
+ If this property is specified VADC will use the VDD reference
+ (1.875V) and GND for channel calibration. If property is not found,
+ channel will be calibrated with 0V and 1.25V reference channels,
+ also known as absolute calibration.
+
+ qcom,hw-settle-time-us:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Time between AMUX getting configured and the ADC starting conversion.
+ enum: [15, 100, 200, 300, 400, 500, 600, 700, 1000, 2000, 4000, 8000, 16000, 32000, 64000, 128000]
+
+ qcom,pre-scaling:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: Used for scaling the channel input signal before the
+ signal is fed to VADC. The configuration for this node is to know the
+ pre-determined ratio and use it for post scaling. It is a pair of
+ integers, denoting the numerator and denominator of the fraction by
+ which input signal is multiplied. For example, <1 3> indicates the
+ signal is scaled down to 1/3 of its value before ADC measurement. If
+ property is not found default value depending on chip will be used.
+ items:
+ - const: 1
+ - enum: [ 1, 3, 4, 6, 20, 8, 10 ]
+
+ required:
+ - reg
+ - io-channels
+
+ additionalProperties:
+ false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#address-cells"
+ - "#size-cells"
+ - "#thermal-sensor-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/iio/qcom,spmi-vadc.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spmi_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pm8150b_adc: adc@3100 {
+ reg = <0x3100>;
+ compatible = "qcom,spmi-adc5";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+
+ /* Other propreties are omitted */
+ conn-therm@4f {
+ reg = <ADC5_AMUX_THM3_100K_PU>;
+ qcom,ratiometric;
+ qcom,hw-settle-time = <200>;
+ };
+ };
+
+ pm8150b_adc_tm: adc-tm@3500 {
+ compatible = "qcom,spmi-adc-tm5";
+ reg = <0x3500>;
+ interrupts = <0x2 0x35 0x0 IRQ_TYPE_EDGE_RISING>;
+ #thermal-sensor-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ conn-therm@0 {
+ reg = <0>;
+ io-channels = <&pm8150b_adc ADC5_AMUX_THM3_100K_PU>;
+ qcom,ratiometric;
+ qcom,hw-settle-time-us = <200>;
+ };
+ };
+ };
+...
--
2.28.0
next prev parent reply other threads:[~2020-09-30 10:02 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 10:01 [PATCH v6 00/10] qcom: pm8150: add support for thermal monitoring Dmitry Baryshkov
2020-09-30 10:01 ` Dmitry Baryshkov [this message]
2020-10-06 19:38 ` [PATCH v6 01/10] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Rob Herring
2020-09-30 10:01 ` [PATCH v6 02/10] fixp-arith: add a linear interpolation function Dmitry Baryshkov
2020-09-30 10:01 ` [PATCH v6 03/10] iio: adc: qcom-vadc: move several adc5 functions to common file Dmitry Baryshkov
2020-09-30 10:01 ` [PATCH v6 04/10] iio: adc: qcom-vadc-common: use fixp_linear_interpolate Dmitry Baryshkov
2020-09-30 10:01 ` [PATCH v6 05/10] iio: adc: qcom-spmi-adc5: use of_device_get_match_data Dmitry Baryshkov
2020-09-30 10:01 ` [PATCH v6 06/10] iio: provide of_iio_channel_get_by_name() and devm_ version it Dmitry Baryshkov
2020-09-30 10:02 ` [PATCH v6 07/10] thermal: qcom: add support for adc-tm5 PMIC thermal monitor Dmitry Baryshkov
2020-10-07 10:11 ` Jishnu Prakash
2020-09-30 10:02 ` [PATCH v6 08/10] arm64: dts: qcom: pm8150x: add definitions for adc-tm5 part Dmitry Baryshkov
2020-09-30 10:02 ` [PATCH v6 09/10] arm64: dts: sm8250-mtp: add thermal zones using pmic's adc-tm5 Dmitry Baryshkov
2020-09-30 10:02 ` [PATCH v6 10/10] arm64: dts: qrb5165-rb5: port thermal zone definitions Dmitry Baryshkov
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