linux-kernel - Re: [PATCH 1/8] dt-bindings: power: supply: Add DT schema for Qualcomm SMBCHG

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Date:   Mon, 8 Aug 2022 11:42:34 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Yassine Oudjana <yassine.oudjana@...il.com>,
        Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Yassine Oudjana <y.oudjana@...tonmail.com>,
        Alejandro Tafalla <atafalla@...on.com>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, phone-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] dt-bindings: power: supply: Add DT schema for
 Qualcomm SMBCHG

On 08/08/2022 10:34, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@...tonmail.com>
> 
> Add DT schema for the switch-mode battery charger found on Qualcomm
> PMICs such as PMI8994. Due to lack of documentation, some interrupt
> descriptions might be inaccurate.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
> ---
>  .../bindings/power/supply/qcom,smbchg.yaml    | 205 ++++++++++++++++++
>  MAINTAINERS                                   |   8 +
>  2 files changed, 213 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/qcom,smbchg.yaml
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/qcom,smbchg.yaml b/Documentation/devicetree/bindings/power/supply/qcom,smbchg.yaml
> new file mode 100644
> index 000000000000..d825a9c10b3e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/qcom,smbchg.yaml
> @@ -0,0 +1,205 @@
> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/qcom,smbchg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm PMIC Switch-Mode Battery Charger
> +
> +maintainers:
> +  - Yassine Oudjana <y.oudjana@...tonmail.com>
> +  - Alejandro Tafalla <atafalla@...on.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,pmi8994-smbchg
> +      - qcom,pmi8996-smbchg
> +
> +  reg:
> +    maxItems: 1
> +
> +  monitored-battery:
> +    description: |
> +      phandle of battery characteristics node.
> +      The charger uses the following properties:
> +      - charge-term-current-microamp
> +      - constant-charge-current-max-microamp
> +      - voltage-max-design-microvolt
> +      The constant-charge-current-max-microamp and voltage-max-design-microvolt
> +      properties must be set.
> +      See Documentation/devicetree/bindings/power/supply/battery.yaml
> +
> +  interrupts:
> +    items:
> +      - description: Charger error
> +      - description: Charger inhibited
> +      - description: Charger precharge safety timer timeout
> +      - description: Charger charge safety timer timeout
> +      - description: Charger pre to fast charging switch threshold reached
> +      - description: Charger recharge threshold reached
> +      - description: Charger taper threshold reached
> +      - description: Charger charge termination threshold reached
> +      - description: Battery hot
> +      - description: Battery warm
> +      - description: Battery cold
> +      - description: Battery cool
> +      - description: Battery overvoltage
> +      - description: Battery low
> +      - description: Battery missing
> +      - description: Battery thermistor missing # unconfirmed
> +      - description: USB input undervolt
> +      - description: USB input overvolt
> +      - description: USB input source detected
> +      - description: OTG regulator failure
> +      - description: OTG regulator overcurrent
> +      - description: Automatic input current limiting done
> +      - description: USB ID pin changed
> +      - description: DC input undervolt
> +      - description: DC input overvolt
> +      - description: Power OK
> +      - description: Temperature shutdown
> +      - description: Watchdog timeout
> +      - description: Flash failure
> +      - description: OTST2 # unknown
> +      - description: OTST3 # unknown

It seems you listed register interrupts, not physical pins. This should
be interrupt lines.

Best regards,
Krzysztof