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Date:   Wed, 18 Mar 2020 13:58:41 +0530
From:   Keerthy <j-keerthy@...com>
To:     <rui.zhang@...el.com>, <robh+dt@...nel.org>,
        <daniel.lezcano@...aro.org>
CC:     <amit.kucheria@...durent.com>, <t-kristo@...com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        <mark.rutland@....com>
Subject: Re: [PATCH v4 1/4] dt-bindings: thermal: k3: Add VTM bindings
 documentation



On 18/03/20 1:57 pm, Keerthy wrote:
> Add VTM bindings documentation. In the Voltage Thermal
> Management Module(VTM), K3 AM654 supplies a voltage
> reference and a temperature sensor feature that are gathered in the band
> gap voltage and temperature sensor (VBGAPTS) module. The band
> gap provides current and voltage reference for its internal
> circuits and other analog IP blocks. The analog-to-digital
> converter (ADC) produces an output value that is proportional
> to the silicon temperature.

Numbering is bad. I will resend in a bit.

> 
> Signed-off-by: Keerthy <j-keerthy@...com>
> ---
>   .../bindings/thermal/ti,am654-thermal.yaml    | 56 +++++++++++++++++++
>   1 file changed, 56 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml
> 
> diff --git a/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml b/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml
> new file mode 100644
> index 000000000000..d241b65d6072
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml
> @@ -0,0 +1,56 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/thermal/ti,am654-thermal.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments AM654 VTM (DTS) binding
> +
> +maintainers:
> +  - Keerthy <j-keerthy@...com>
> +
> +properties:
> +  compatible:
> +    const: ti,am654-vtm
> +
> +  reg:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  "#thermal-sensor-cells":
> +    const: 1
> +
> +required:
> +  - "#thermal-sensor-cells"
> +  - compatible
> +  - reg
> +  - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/soc/ti,sci_pm_domain.h>
> +    vtm: thermal@...50000 {
> +        compatible = "ti,am654-vtm";
> +        reg = <0x0 0x42050000 0x0 0x25c>;
> +        power-domains = <&k3_pds 80 TI_SCI_PD_EXCLUSIVE>;
> +        #thermal-sensor-cells = <1>;
> +    };
> +
> +    mpu0_thermal: mpu0_thermal {
> +        polling-delay-passive = <250>; /* milliseconds */
> +        polling-delay = <500>; /* milliseconds */
> +        thermal-sensors = <&vtm0 0>;
> +
> +        trips {
> +                mpu0_crit: mpu0_crit {
> +                        temperature = <125000>; /* milliCelsius */
> +                        hysteresis = <2000>; /* milliCelsius */
> +                        type = "critical";
> +                };
> +        };
> +    };
> +...
> 

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