2022-04-12 07:46:12

by Camel Guo

[permalink] [raw]
Subject: [PATCH 1/2] dt-bindings: hwmon: Add TMP401, TMP411 and TMP43x

From: Camel Guo <[email protected]>

Document the TMP401, TMP411 and TMP43x device devicetree bindings

Signed-off-by: Camel Guo <[email protected]>
---
.../devicetree/bindings/hwmon/ti,tmp401.yaml | 111 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 112 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
new file mode 100644
index 000000000000..28be5cbb009b
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/ti,tmp401.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TMP401, TPM411 and TMP43x temperature sensor
+
+maintainers:
+ - Guenter Roeck <[email protected]>
+
+description: |
+ ±1°C Remote and Local temperature sensor
+
+ Datasheets:
+ https://www.ti.com/lit/ds/symlink/tmp401.pdf
+ https://www.ti.com/lit/ds/symlink/tmp411.pdf
+ https://www.ti.com/lit/ds/symlink/tmp431.pdf
+ https://www.ti.com/lit/ds/symlink/tmp435.pdf
+
+properties:
+ compatible:
+ enum:
+ - ti,tmp401
+ - ti,tmp411
+ - ti,tmp431
+ - ti,tmp432
+ - ti,tmp435
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ ti,extended-range-enable:
+ description: |
+ When set, this sensor measures over extended temperature range.
+ type: boolean
+
+ ti,n-factor:
+ description: |
+ The value (two's complement) to be programmed in the n-factor correction
+ register.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ items:
+ minimum: 0
+ maximum: 255
+
+ ti,beta-compensation:
+ description: |
+ The value to be programmed in the beta range register.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ items:
+ minimum: 0
+ maximum: 15
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,tmp401
+ then:
+ properties:
+ ti,n-factor: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,tmp401
+ - ti,tmp411
+ then:
+ properties:
+ ti,beta-compensation: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4c {
+ compatible = "ti,tmp401";
+ reg = <0x4c>;
+ };
+ };
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4c {
+ compatible = "ti,tmp431";
+ reg = <0x4c>;
+ ti,extended-range-enable;
+ ti,n-factor = <0x3b>;
+ ti,beta-compensation = <0x7>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 61d9f114c37f..6b0d8f5cc68e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19838,6 +19838,7 @@ TMP401 HARDWARE MONITOR DRIVER
M: Guenter Roeck <[email protected]>
L: [email protected]
S: Maintained
+F: Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
F: Documentation/hwmon/tmp401.rst
F: drivers/hwmon/tmp401.c

--
2.30.2


2022-04-12 21:23:34

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH 1/2] dt-bindings: hwmon: Add TMP401, TMP411 and TMP43x

On 11/04/2022 12:03, Camel Guo wrote:
> From: Camel Guo <[email protected]>
>
> Document the TMP401, TMP411 and TMP43x device devicetree bindings
>
> Signed-off-by: Camel Guo <[email protected]>
> ---
> .../devicetree/bindings/hwmon/ti,tmp401.yaml | 111 ++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 112 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
>

Thank you for your patch. There is something to discuss/improve.

> diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
> new file mode 100644
> index 000000000000..28be5cbb009b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
> @@ -0,0 +1,111 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/ti,tmp401.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TMP401, TPM411 and TMP43x temperature sensor
> +
> +maintainers:
> + - Guenter Roeck <[email protected]>
> +
> +description: |
> + ±1°C Remote and Local temperature sensor
> +
> + Datasheets:
> + https://www.ti.com/lit/ds/symlink/tmp401.pdf
> + https://www.ti.com/lit/ds/symlink/tmp411.pdf
> + https://www.ti.com/lit/ds/symlink/tmp431.pdf
> + https://www.ti.com/lit/ds/symlink/tmp435.pdf
> +
> +properties:
> + compatible:
> + enum:
> + - ti,tmp401
> + - ti,tmp411
> + - ti,tmp431
> + - ti,tmp432
> + - ti,tmp435

Blank line, please.

> + reg:
> + maxItems: 1
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + ti,extended-range-enable:
> + description: |

No need for "|". Here and in most of other cases below.

> + When set, this sensor measures over extended temperature range.
> + type: boolean
> +
> + ti,n-factor:
> + description: |
> + The value (two's complement) to be programmed in the n-factor correction
> + register.

Do not describe the programming model (registers) but hardware property
instead.

> + $ref: /schemas/types.yaml#/definitions/uint32
> + items:
> + minimum: 0
> + maximum: 255
> +
> + ti,beta-compensation:
> + description: |
> + The value to be programmed in the beta range register.

The same, register values should not be stored in DT.

> + $ref: /schemas/types.yaml#/definitions/uint32
> + items:
> + minimum: 0
> + maximum: 15
> +


Best regards,
Krzysztof

2022-04-12 22:58:06

by Camel Guo

[permalink] [raw]
Subject: Re: [PATCH 1/2] dt-bindings: hwmon: Add TMP401, TMP411 and TMP43x

On 4/12/22 13:53, Krzysztof Kozlowski wrote:
> On 11/04/2022 12:03, Camel Guo wrote:
>> From: Camel Guo <[email protected]>
>>
>> Document the TMP401, TMP411 and TMP43x device devicetree bindings
>>
>> Signed-off-by: Camel Guo <[email protected]>
>> ---
>>  .../devicetree/bindings/hwmon/ti,tmp401.yaml  | 111 ++++++++++++++++++
>>  MAINTAINERS                                   |   1 +
>>  2 files changed, 112 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp401.yaml
>>

>> +      - ti,tmp401
>> +      - ti,tmp411
>> +      - ti,tmp431
>> +      - ti,tmp432
>> +      - ti,tmp435
>
> Blank line, please.

Fixed
>
>> +  reg:
>> +    maxItems: 1
>> +
>> +  '#address-cells':
>> +    const: 1
>> +
>> +  '#size-cells':
>> +    const: 0
>> +
>> +  ti,extended-range-enable:
>> +    description: |
>
> No need for "|". Here and in most of other cases below.

Fixed

>
>> +      When set, this sensor measures over extended temperature range.
>> +    type: boolean
>> +
>> +  ti,n-factor:
>> +    description: |
>> +      The value (two's complement) to be programmed in the n-factor correction
>> +      register.
>
> Do not describe the programming model (registers) but hardware property
> instead.

Make another try. Hope it is clear now.
>
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    items:
>> +      minimum: 0
>> +      maximum: 255
>> +
>> +  ti,beta-compensation:
>> +    description: |
>> +      The value to be programmed in the beta range register.
>
> The same, register values should not be stored in DT.
>
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    items:
>> +      minimum: 0
>> +      maximum: 15
>> +
>
>
> Best regards,
> Krzysztof

Fixed in v2. Please review that instead.