Re: [PATCH v2 01/14] dt-bindings: regulator: Add ROHM BD96802 PMIC
From: Conor Dooley
Date: Tue Mar 25 2025 - 13:23:09 EST
On Mon, Mar 24, 2025 at 10:54:44AM +0200, Matti Vaittinen wrote:
> BD96802Qxx-C is an automotive grade configurable Power Management
> Integrated Circuit supporting Functional Safety features for application
> processors, SoCs and FPGAs. BD96802 is controlled via I2C, provides two
> interrupt lines and has two controllable buck regulators.
>
> The BD96802 belongs to the family of ROHM Scalable PMICs and is intended
> to be used as a companion PMIC for the BD96801.
>
> Signed-off-by: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
>
> ---
> Revision history:
> v1 => :
> - No changes
> ---
> .../regulator/rohm,bd96802-regulator.yaml | 44 +++++++++++++++++++
> 1 file changed, 44 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd96802-regulator.yaml
>
> diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd96802-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd96802-regulator.yaml
> new file mode 100644
> index 000000000000..671eaf1096d3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/rohm,bd96802-regulator.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/rohm,bd96802-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ROHM BD96802 Power Management Integrated Circuit regulators
> +
> +maintainers:
> + - Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx>
> +
> +description:
> + This module is part of the ROHM BD96802 MFD device. For more details
> + see Documentation/devicetree/bindings/mfd/rohm,bd96802-pmic.yaml.
> +
> + The regulator controller is represented as a sub-node of the PMIC node
> + on the device tree.
> +
> + Regulator nodes should be named to buck1 and buck2.
Is it really needed to add a new binding for this, rather than including
it in the mfd binding, particularly when this isn't actually a binding
for the regulator but the pattern section applies to the mfd.
> +
> +patternProperties:
> + "^buck[1-2]$":
> + type: object
> + description:
> + Properties for single BUCK regulator.
> + $ref: regulator.yaml#
> +
> + properties:
> + rohm,initial-voltage-microvolt:
> + description:
> + Initial voltage for regulator. Voltage can be tuned +/-150 mV from
> + this value. NOTE, This can be modified via I2C only when PMIC is in
> + STBY state.
> + minimum: 500000
> + maximum: 3300000
> +
> + rohm,keep-on-stby:
> + description:
> + Keep the regulator powered when PMIC transitions to STBY state.
> + type: boolean
> +
> + unevaluatedProperties: false
> +
> +additionalProperties: false
> --
> 2.49.0
>
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