From: Marius Cristea <[email protected]>
This is the device tree schema for iio driver for
Microchip PAC193X series of Power Monitors with Accumulator.
Signed-off-by: Marius Cristea <[email protected]>
---
.../bindings/iio/adc/microchip,pac1934.yaml | 120 ++++++++++++++++++
1 file changed, 120 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
new file mode 100644
index 000000000000..cd9cb2a71566
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
@@ -0,0 +1,120 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/microchip,pac1934.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PAC1934 Power Monitors with Accumulator
+
+maintainers:
+ - Marius Cristea <[email protected]>
+
+description: |
+ This device is part of the Microchip family of Power Monitors with
+ Accumulator.
+ The datasheet for PAC1931, PAC1932, PAC1933 and PAC1934 can be found here:
+ https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/PAC1931-Family-Data-Sheet-DS20005850E.pdf
+
+properties:
+ compatible:
+ enum:
+ - microchip,pac1931
+ - microchip,pac1932
+ - microchip,pac1933
+ - microchip,pac1934
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ interrupts:
+ maxItems: 1
+
+ slow-io-gpios:
+ description: |
+ A GPIO used to trigger a change is sampling rate (lowering the chip power
+ consumption). If configured in SLOW mode, if this pin is forced high,
+ sampling rate is forced to eight samples/second. When it is forced low,
+ the sampling rate is 1024 samples/second unless a different sample rate
+ has been programmed.
+
+patternProperties:
+ "^channel@[1-4]+$":
+ type: object
+ $ref: adc.yaml
+ description: |
+ Represents the external channels which are connected to the ADC.
+
+ properties:
+ reg:
+ items:
+ minimum: 1
+ maximum: 4
+
+ shunt-resistor-micro-ohms:
+ description: |
+ Value in micro Ohms of the shunt resistor connected between
+ the SENSE+ and SENSE- inputs, across which the current is measured.
+ Value is needed to compute the scaling of the measured current.
+
+ required:
+ - reg
+ - shunt-resistor-micro-ohms
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pac193x: power-monitor@10 {
+ compatible = "microchip,pac1934";
+ reg = <0x10>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@1 {
+ reg = <0x1>;
+ shunt-resistor-micro-ohms = <24900000>;
+ label = "CPU";
+ };
+
+ channel@2 {
+ reg = <0x2>;
+ shunt-resistor-micro-ohms = <49900000>;
+ label = "GPU";
+ };
+
+ channel@3 {
+ reg = <0x3>;
+ shunt-resistor-micro-ohms = <75000000>;
+ label = "MEM";
+ bipolar;
+ };
+
+ channel@4 {
+ reg = <0x4>;
+ shunt-resistor-micro-ohms = <100000000>;
+ label = "NET";
+ bipolar;
+ };
+ };
+ };
+
+...
--
2.34.1
Hey Marius,
On Mon, Jan 22, 2024 at 10:47:11AM +0200, [email protected] wrote:
> From: Marius Cristea <[email protected]>
>
> This is the device tree schema for iio driver for
> Microchip PAC193X series of Power Monitors with Accumulator.
>
> Signed-off-by: Marius Cristea <[email protected]>
I like how this is looking now. I have two minor comments that if you
resend for some other reason you could change, but otherwise:
Reviewed-by: Conor Dooley <[email protected]>
> ---
> .../bindings/iio/adc/microchip,pac1934.yaml | 120 ++++++++++++++++++
> 1 file changed, 120 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
> new file mode 100644
> index 000000000000..cd9cb2a71566
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml
> @@ -0,0 +1,120 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/microchip,pac1934.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip PAC1934 Power Monitors with Accumulator
> +
> +maintainers:
> + - Marius Cristea <[email protected]>
> +
> +description: |
> + This device is part of the Microchip family of Power Monitors with
> + Accumulator.
> + The datasheet for PAC1931, PAC1932, PAC1933 and PAC1934 can be found here:
> + https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/PAC1931-Family-Data-Sheet-DS20005850E.pdf
> +
> +properties:
> + compatible:
> + enum:
> + - microchip,pac1931
> + - microchip,pac1932
> + - microchip,pac1933
> + - microchip,pac1934
> +
> + reg:
> + maxItems: 1
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> + interrupts:
> + maxItems: 1
> +
> + slow-io-gpios:
> + description: |
This...
> + A GPIO used to trigger a change is sampling rate (lowering the chip power
> + consumption). If configured in SLOW mode, if this pin is forced high,
> + sampling rate is forced to eight samples/second. When it is forced low,
> + the sampling rate is 1024 samples/second unless a different sample rate
> + has been programmed.
> +
> +patternProperties:
> + "^channel@[1-4]+$":
> + type: object
> + $ref: adc.yaml
> + description: |
...and this...
> + Represents the external channels which are connected to the ADC.
> +
> + properties:
> + reg:
> + items:
> + minimum: 1
> + maximum: 4
> +
> + shunt-resistor-micro-ohms:
> + description: |
...and this | are not needed here as you have no formatting to preserve.
> + Value in micro Ohms of the shunt resistor connected between
> + the SENSE+ and SENSE- inputs, across which the current is measured.
> + Value is needed to compute the scaling of the measured current.
> +
> + required:
> + - reg
> + - shunt-resistor-micro-ohms
> +
> + unevaluatedProperties: false
> +
> +required:
> + - compatible
> + - reg
> + - "#address-cells"
> + - "#size-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pac193x: power-monitor@10 {
This "pac193x" label is not used and should be removed.
Thanks,
Conor.
> + compatible = "microchip,pac1934";
> + reg = <0x10>;
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + channel@1 {
> + reg = <0x1>;
> + shunt-resistor-micro-ohms = <24900000>;
> + label = "CPU";
> + };
> +
> + channel@2 {
> + reg = <0x2>;
> + shunt-resistor-micro-ohms = <49900000>;
> + label = "GPU";
> + };
> +
> + channel@3 {
> + reg = <0x3>;
> + shunt-resistor-micro-ohms = <75000000>;
> + label = "MEM";
> + bipolar;
> + };
> +
> + channel@4 {
> + reg = <0x4>;
> + shunt-resistor-micro-ohms = <100000000>;
> + label = "NET";
> + bipolar;
> + };
> + };
> + };
> +
> +...
> --
> 2.34.1
>