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Message-ID: <YaQjo9KCFnPi+Qk/@robh.at.kernel.org>
Date: Sun, 28 Nov 2021 18:49:39 -0600
From: Rob Herring <robh@...nel.org>
To: Adam Ward <Adam.Ward.opensource@...semi.com>
Cc: Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
Support Opensource <support.opensource@...semi.com>
Subject: Re: [PATCH V3 2/3] dt-bindings: da9121: Add DA914x binding info
On Tue, Nov 23, 2021 at 11:27:57PM +0000, Adam Ward wrote:
> Signed-off-by: Adam Ward <Adam.Ward.opensource@...semi.com>
Both of these need a commit message.
> ---
> .../bindings/regulator/dlg,da9121.yaml | 75 +++++++++++--------
> 1 file changed, 44 insertions(+), 31 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml b/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml
> index 0aee5fcd6093..24ace6e1e5ec 100644
> --- a/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml
> +++ b/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml
> @@ -17,27 +17,39 @@ description: |
> Dialog Semiconductor DA9130 Single-channel 10A double-phase buck converter
> Dialog Semiconductor DA9131 Double-channel 5A single-phase buck converter
> Dialog Semiconductor DA9132 Double-channel 3A single-phase buck converter
> -
> - Current limits
> -
> - This is PER PHASE, and the current limit setting in the devices reflect
> - that with a maximum 10A limit. Allowing for transients at/near double
> - the rated current, this translates across the device range to per
> - channel figures as so...
> -
> - | DA9121 DA9122 DA9220 DA9217
> - | /DA9130 /DA9131 /DA9132
> - -------------------------------------------------------------------
> - Output current / channel | 10000000 5000000 3000000 6000000
> - Output current / phase | 5000000 5000000 3000000 3000000
> - -------------------------------------------------------------------
> - Min regulator-min-microvolt| 300000 300000 300000 300000
> - Max regulator-max-microvolt| 1900000 1900000 1900000 1900000
> - Device hardware default | 1000000 1000000 1000000 1000000
> - -------------------------------------------------------------------
> - Min regulator-min-microamp | 7000000 3500000 3500000 7000000
> - Max regulator-max-microamp | 20000000 10000000 6000000 12000000
> - Device hardware default | 15000000 7500000 5500000 11000000
> + Dialog Semiconductor DA9141 Single-channel 40A quad-phase buck converter
> + Dialog Semiconductor DA9142 Single-channel 20A double-phase buck converter
> +
> + Device parameter ranges
> +
> + The current limits can be set to at/near double the rated current per channel
> + to allow for transient peaks.
> + Current limit changes when the output is enabled are not supported, as a
> + precaution against undefined behaviour.
> +
> + |----------------------------------------------|
> + | | range & reset default value |
> + | Device |------------------------------|
> + | | microvolt | microamp |
> + |----------------------------------------------|
> + | DA9121/DA9130 | Min: 300000 | Min: 7000000 |
> + | | Max: 1900000 | Max: 20000000 |
> + |----------------------------------------------|
> + | DA9121/DA9131 | Min: 300000 | Min: 3500000 |
> + | | Max: 1900000 | Max: 10000000 |
> + |----------------------------------------------|
> + | DA9121/DA9131 | Min: 300000 | Min: 3500000 |
> + | | Max: 1900000 | Max: 6000000 |
> + |----------------------------------------------|
> + | DA9217 | Min: 300000 | Min: 7000000 |
> + | | Max: 1900000 | Max: 12000000 |
> + |----------------------------------------------|
> + | DA9141 | Min: 300000 | Min: 26000000 |
> + | | Max: 1300000 | Max: 78000000 |
> + |----------------------------------------------|
> + | DA9142 | Min: 300000 | Min: 13000000 |
> + | | Max: 1300000 | Max: 39000000 |
> + |----------------------------------------------|
>
> properties:
> $nodename:
> @@ -51,6 +63,8 @@ properties:
> - dlg,da9130
> - dlg,da9131
> - dlg,da9132
> + - dlg,da9141
> + - dlg,da9142
>
> reg:
> maxItems: 1
> @@ -69,26 +83,24 @@ properties:
>
> regulators:
> type: object
> - $ref: regulator.yaml#
> description: |
> - This node defines the settings for the BUCK. The content of the
> - sub-node is defined by the standard binding for regulators; see regulator.yaml.
> - The DA9121 regulator is bound using their names listed below
> - buck1 - BUCK1
> - buck2 - BUCK2 //DA9122, DA9220, DA9131, DA9132 only
> + List of regulators provided by the device
>
> patternProperties:
> "^buck([1-2])$":
> type: object
> $ref: regulator.yaml#
> + description: |
> + Properties for a single BUCK regulator
>
> properties:
> - regulator-mode:
> - maxItems: 1
> - description: Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
> + regulator-name:
> + pattern: "^BUCK([1-2])$"
> + description: |
> + BUCK2 present in DA9122, DA9220, DA9131, DA9132 only
>
> regulator-initial-mode:
> - maxItems: 1
> + enum: [ 0, 1, 2, 3 ]
> description: Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
>
> enable-gpios:
> @@ -97,6 +109,7 @@ properties:
>
> dlg,ripple-cancel:
> $ref: "/schemas/types.yaml#/definitions/uint32"
> + enum: [ 0, 1, 2, 3 ]
> description: |
> Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
> Only present on multi-channel devices (DA9122, DA9220, DA9131, DA9132)
> --
> 2.25.1
>
>
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