Re: [PATCH 1/2] dt-bindings: power: supply: document Samsung S2MU005 battery fuel gauge
From: Conor Dooley
Date: Mon Jan 26 2026 - 15:06:54 EST
On Mon, Jan 26, 2026 at 09:09:48PM +0530, Kaustabh Chakraborty wrote:
> Samsung S2MU005 is a PMIC device which has LED controllers, an MUIC and
> a battery charger. The battery charger is paired with an independent
> device connected via I2C which can be used to access various metrics of
> the battery. Document the device as a schema.
>
> Signed-off-by: Kaustabh Chakraborty <kauschluss@xxxxxxxxxxx>
> ---
> .../power/supply/samsung,s2mu005-fuel-gauge.yaml | 49 ++++++++++++++++++++++
> 1 file changed, 49 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/power/supply/samsung,s2mu005-fuel-gauge.yaml b/Documentation/devicetree/bindings/power/supply/samsung,s2mu005-fuel-gauge.yaml
> new file mode 100644
> index 0000000000000..5f945a5369dc8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/samsung,s2mu005-fuel-gauge.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/samsung,s2mu005-fuel-gauge.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Battery Fuel Gauge for Samsung S2M series PMICs
> +
> +maintainers:
> + - Kaustabh Chakraborty <kauschluss@xxxxxxxxxxx>
> +
> +allOf:
> + - $ref: power-supply.yaml#
> +
> +properties:
> + compatible:
> + enum:
> + - samsung,s2mu005-fuel-gauge
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + fuelgauge@3b {
Should be "fuel-gauge" iirc (at least, that's what all the bindings do).
Seems fine to me though otherwise,
Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
pw-bot: not-applicable
> + compatible = "samsung,s2mu005-fuel-gauge";
> + reg = <0x3b>;
> +
> + interrupt-parent = <&gpa0>;
> + interrupts = <3 IRQ_TYPE_EDGE_BOTH>;
> +
> + monitored-battery = <&battery>;
> + };
> + };
>
> --
> 2.52.0
>
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