diff mbox series

[v11,1/8] dt-bindings: power: supply: Add MediaTek MT6370 Charger

Message ID 9382254831bb6ed8c228398a68896b0e8e61c7c4.1663254344.git.chiaen_wu@richtek.com
State New
Headers show
Series Add MediaTek MT6370 PMIC support | expand

Commit Message

ChiaEn Wu Sept. 15, 2022, 9:47 a.m. UTC 
From: ChiaEn Wu <chiaen_wu@richtek.com>

Add MediaTek MT6370 Charger binding documentation.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com>
---
v11
- Add more detailed description of irqs.
- Adujust the order of irqs
---
 .../power/supply/mediatek,mt6370-charger.yaml      | 96 ++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml

Comments

Sebastian Reichel Sept. 16, 2022, 2:18 p.m. UTC | #1 
Hi,

On Thu, Sep 15, 2022 at 05:47:29PM +0800, ChiaEn Wu wrote:
> From: ChiaEn Wu <chiaen_wu@richtek.com>
> 
> Add MediaTek MT6370 Charger binding documentation.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com>
> ---
> v11
> - Add more detailed description of irqs.
> - Adujust the order of irqs
> ---

Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>

-- Sebastian

>  .../power/supply/mediatek,mt6370-charger.yaml      | 96 ++++++++++++++++++++++
>  1 file changed, 96 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> new file mode 100644
> index 0000000..fd491c5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> @@ -0,0 +1,96 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/mediatek,mt6370-charger.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek MT6370 Battery Charger
> +
> +maintainers:
> +  - ChiaEn Wu <chiaen_wu@richtek.com>
> +
> +description: |
> +  This module is part of the MT6370 MFD device.
> +  Provides Battery Charger, Boost for OTG devices and BC1.2 detection.
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6370-charger
> +
> +  interrupts:
> +    description: |
> +      Specify what irqs are needed to be handled by MT6370 Charger driver.
> +      We need to use the IRQ "MT6370_IRQ_OVPCTRL_UVP_D" to know when USB
> +      is plugged in, and then the driver will enable BC1.2 detection.
> +      After the hardware of MT6370 completes the BC1.2 detection,
> +      IRQ "MT6370_IRQ_ATTACH" will be triggered, and the driver will know
> +      the result of BC1.2 detection.
> +      When the IRQ "MT6370_IRQ_CHG_MIVR" is triggered, it means that the
> +      hardware enters the "Minimum Input Voltage Regulation loop" and
> +      a workaround needs to be applied at this time.
> +      In summary, "MT6370_IRQ_OVPCTRL_UVP_D", "MT6370_IRQ_ATTACH" and
> +      "MT6370_IRQ_CHG_MIVR" are required in this charger driver.
> +    items:
> +      - description: irq of "USB is plugged in"
> +      - description: irq of "BC1.2 is done"
> +      - description: irq of "Minimum Input Voltage Regulation loop is active"
> +
> +  interrupt-names:
> +    items:
> +      - const: uvp_d_evt
> +      - const: attach_i
> +      - const: mivr
> +
> +  io-channels:
> +    description: |
> +      Use ADC channel to read VBUS, IBUS, IBAT, etc., info.
> +    minItems: 1
> +    items:
> +      - description: |
> +          VBUS voltage with lower accuracy (+-75mV) but higher measure
> +          range (1~22V)
> +      - description: |
> +          VBUS voltage with higher accuracy (+-30mV) but lower measure
> +          range (1~9.76V)
> +      - description: the main system input voltage
> +      - description: battery voltage
> +      - description: battery temperature-sense input voltage
> +      - description: IBUS current (required)
> +      - description: battery current
> +      - description: |
> +          regulated output voltage to supply for the PWM low-side gate driver
> +          and the bootstrap capacitor
> +      - description: IC junction temperature
> +
> +  io-channel-names:
> +    minItems: 1
> +    items:
> +      - const: vbusdiv5
> +      - const: vbusdiv2
> +      - const: vsys
> +      - const: vbat
> +      - const: ts_bat
> +      - const: ibus
> +      - const: ibat
> +      - const: chg_vddp
> +      - const: temp_jc
> +
> +  usb-otg-vbus-regulator:
> +    type: object
> +    description: OTG boost regulator.
> +    unevaluatedProperties: false
> +    $ref: /schemas/regulator/regulator.yaml#
> +
> +    properties:
> +      enable-gpios:
> +        maxItems: 1
> +
> +required:
> +  - compatible
> +  - interrupts
> +  - interrupt-names
> +  - io-channels
> +
> +additionalProperties: false
> +
> +...
> -- 
> 2.7.4
>
Sebastian Reichel Oct. 1, 2022, 8:29 p.m. UTC | #2 
Hi,

On Mon, Sep 26, 2022 at 09:52:06AM -0500, Rob Herring wrote:
> On Thu, Sep 15, 2022 at 4:49 AM ChiaEn Wu <peterwu.pub@gmail.com> wrote:
> >
> > From: ChiaEn Wu <chiaen_wu@richtek.com>
> >
> > Add MediaTek MT6370 Charger binding documentation.
> >
> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> > Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com>
> > ---
> > v11
> > - Add more detailed description of irqs.
> > - Adujust the order of irqs
> > ---
> >  .../power/supply/mediatek,mt6370-charger.yaml      | 96 ++++++++++++++++++++++
> >  1 file changed, 96 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> > new file mode 100644
> > index 0000000..fd491c5
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> > @@ -0,0 +1,96 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/power/supply/mediatek,mt6370-charger.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: MediaTek MT6370 Battery Charger
> > +
> > +maintainers:
> > +  - ChiaEn Wu <chiaen_wu@richtek.com>
> > +
> > +description: |
> > +  This module is part of the MT6370 MFD device.
> > +  Provides Battery Charger, Boost for OTG devices and BC1.2 detection.
> > +
> > +properties:
> > +  compatible:
> > +    const: mediatek,mt6370-charger
> > +
> > +  interrupts:
> > +    description: |
> > +      Specify what irqs are needed to be handled by MT6370 Charger driver.
> > +      We need to use the IRQ "MT6370_IRQ_OVPCTRL_UVP_D" to know when USB
> > +      is plugged in, and then the driver will enable BC1.2 detection.
> > +      After the hardware of MT6370 completes the BC1.2 detection,
> > +      IRQ "MT6370_IRQ_ATTACH" will be triggered, and the driver will know
> > +      the result of BC1.2 detection.
> > +      When the IRQ "MT6370_IRQ_CHG_MIVR" is triggered, it means that the
> > +      hardware enters the "Minimum Input Voltage Regulation loop" and
> > +      a workaround needs to be applied at this time.
> > +      In summary, "MT6370_IRQ_OVPCTRL_UVP_D", "MT6370_IRQ_ATTACH" and
> > +      "MT6370_IRQ_CHG_MIVR" are required in this charger driver.
> > +    items:
> > +      - description: irq of "USB is plugged in"
> > +      - description: irq of "BC1.2 is done"
> > +      - description: irq of "Minimum Input Voltage Regulation loop is active"
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: uvp_d_evt
> > +      - const: attach_i
> > +      - const: mivr
> 
> Now warning in linux-next:
> 
> /builds/robherring/linux-dt/Documentation/devicetree/bindings/mfd/mediatek,mt6370.example.dtb:
> charger: interrupt-names:0: 'uvp_d_evt' was expected
>  From schema: /builds/robherring/linux-dt/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
> /builds/robherring/linux-dt/Documentation/devicetree/bindings/mfd/mediatek,mt6370.example.dtb:
> charger: interrupt-names:1: 'attach_i' was expected
>  From schema: /builds/robherring/linux-dt/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml

Looks like the example in the MFD binding has the order of uvp_d_evt
and attach_i swapped. ChiaEn Wu, please send a fix.

-- Sebastian
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
new file mode 100644
index 0000000..fd491c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
@@ -0,0 +1,96 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/mediatek,mt6370-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT6370 Battery Charger
+
+maintainers:
+  - ChiaEn Wu <chiaen_wu@richtek.com>
+
+description: |
+  This module is part of the MT6370 MFD device.
+  Provides Battery Charger, Boost for OTG devices and BC1.2 detection.
+
+properties:
+  compatible:
+    const: mediatek,mt6370-charger
+
+  interrupts:
+    description: |
+      Specify what irqs are needed to be handled by MT6370 Charger driver.
+      We need to use the IRQ "MT6370_IRQ_OVPCTRL_UVP_D" to know when USB
+      is plugged in, and then the driver will enable BC1.2 detection.
+      After the hardware of MT6370 completes the BC1.2 detection,
+      IRQ "MT6370_IRQ_ATTACH" will be triggered, and the driver will know
+      the result of BC1.2 detection.
+      When the IRQ "MT6370_IRQ_CHG_MIVR" is triggered, it means that the
+      hardware enters the "Minimum Input Voltage Regulation loop" and
+      a workaround needs to be applied at this time.
+      In summary, "MT6370_IRQ_OVPCTRL_UVP_D", "MT6370_IRQ_ATTACH" and
+      "MT6370_IRQ_CHG_MIVR" are required in this charger driver.
+    items:
+      - description: irq of "USB is plugged in"
+      - description: irq of "BC1.2 is done"
+      - description: irq of "Minimum Input Voltage Regulation loop is active"
+
+  interrupt-names:
+    items:
+      - const: uvp_d_evt
+      - const: attach_i
+      - const: mivr
+
+  io-channels:
+    description: |
+      Use ADC channel to read VBUS, IBUS, IBAT, etc., info.
+    minItems: 1
+    items:
+      - description: |
+          VBUS voltage with lower accuracy (+-75mV) but higher measure
+          range (1~22V)
+      - description: |
+          VBUS voltage with higher accuracy (+-30mV) but lower measure
+          range (1~9.76V)
+      - description: the main system input voltage
+      - description: battery voltage
+      - description: battery temperature-sense input voltage
+      - description: IBUS current (required)
+      - description: battery current
+      - description: |
+          regulated output voltage to supply for the PWM low-side gate driver
+          and the bootstrap capacitor
+      - description: IC junction temperature
+
+  io-channel-names:
+    minItems: 1
+    items:
+      - const: vbusdiv5
+      - const: vbusdiv2
+      - const: vsys
+      - const: vbat
+      - const: ts_bat
+      - const: ibus
+      - const: ibat
+      - const: chg_vddp
+      - const: temp_jc
+
+  usb-otg-vbus-regulator:
+    type: object
+    description: OTG boost regulator.
+    unevaluatedProperties: false
+    $ref: /schemas/regulator/regulator.yaml#
+
+    properties:
+      enable-gpios:
+        maxItems: 1
+
+required:
+  - compatible
+  - interrupts
+  - interrupt-names
+  - io-channels
+
+additionalProperties: false
+
+...