On Thu, Apr 20, 2023 at 09:24:01PM +0200, Naresh Solanki wrote:
> Add optional DT property 'regulator-supplies' to handle connectors with
> multiple supplies.
> If this property is present, it will determine all regulator supplies.
> Otherwise, the 'vout' supply will be used as a fallback.
>
> This change improves support for connector like PCIe connectors on
> mainboards that can be powered by 12V and 3.3V supplies.
>
> Signed-off-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx>
> ...
> Change in V2:
> - Added example
> - Update property type & description.
> - Improve commit message
> ---
> .../bindings/regulator/regulator-output.yaml | 21 ++++++++++++++++---
> 1 file changed, 18 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/regulator/regulator-output.yaml b/Documentation/devicetree/bindings/regulator/regulator-output.yaml
> index 078b37a1a71a..a9dce26991ff 100644
> --- a/Documentation/devicetree/bindings/regulator/regulator-output.yaml
> +++ b/Documentation/devicetree/bindings/regulator/regulator-output.yaml
> @@ -21,13 +21,22 @@ properties:
> compatible:
> const: regulator-output
>
> - vout-supply:
> + regulator-supplies:
> + $ref: /schemas/types.yaml#/definitions/string-array
> description:
> - Phandle of the regulator supplying the output.
> + Optional property that specifies supply names provided by
> + the regulator. Defaults to "vout" if not specified. The
> + array contains a list of supply names.
> + Each supply name corresponds to a phandle in the
> + patternProperties.
> +
> +patternProperties:
> + ".*-supply":
> + description:
> + Specifies the phandle for various supplies
While you say use 'vout-supply' for a single supply, nothing enforces
that anymore.
>
> required:
> - compatible
> - - vout-supply
>
> additionalProperties: false
>
> @@ -37,3 +46,9 @@ examples:
> compatible = "regulator-output";
> vout-supply = <&output_reg>;
> };
> + out2 {
> + compatible = "regulator-output";
> + regulator-supplies = "sw0", "sw1";
> + sw0-supply = <&out2_sw0>;
> + sw1-supply = <&out2_sw1>;
Names in the consumer are relative to the consumer. You appear to be
naming these by the supplier. Just add vout[0-9]-supply and iterate over
that name in the driver. Then you don't need "regulator-supplies".
Really, you never did. You could just find all properties ending in
"-supply".
Rob
