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Date: Tue, 28 Feb 2023 20:35:45 -0600
From: Rob Herring <robh@...nel.org>
To: Jakob Hauser <jahau@...ketmail.com>
Cc: Sebastian Reichel <sre@...nel.org>, Lee Jones <lee@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Beomho Seo <beomho.seo@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Stephan Gerhold <stephan@...hold.net>,
Raymond Hackley <raymondhackley@...tonmail.com>,
linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 10/10] dt-bindings: Add documentation for rt5033 mfd,
regulator and charger
On Tue, Feb 28, 2023 at 11:32:27PM +0100, Jakob Hauser wrote:
> Add device tree binding documentation for rt5033 multifunction device, voltage
> regulator and battery charger.
>
> Cc: Beomho Seo <beomho.seo@...sung.com>
> Cc: Chanwoo Choi <cw00.choi@...sung.com>
> Signed-off-by: Jakob Hauser <jahau@...ketmail.com>
> ---
> .../bindings/mfd/richtek,rt5033.yaml | 102 ++++++++++++++++++
> .../power/supply/richtek,rt5033-charger.yaml | 76 +++++++++++++
> .../regulator/richtek,rt5033-regulator.yaml | 45 ++++++++
> 3 files changed, 223 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/richtek,rt5033.yaml
> create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt5033-charger.yaml
> create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rt5033-regulator.yaml
>
> diff --git a/Documentation/devicetree/bindings/mfd/richtek,rt5033.yaml b/Documentation/devicetree/bindings/mfd/richtek,rt5033.yaml
> new file mode 100644
> index 000000000000..f1a58694c81e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/richtek,rt5033.yaml
> @@ -0,0 +1,102 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/richtek,rt5033.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Richtek RT5033 Power Management Integrated Circuit
> +
> +maintainers:
> + - Jakob Hauser <jahau@...ketmail.com>
> +
> +description: |
Don't need '|' unless you care about line endings.
> + RT5033 is a multifunction device which includes battery charger, fuel gauge,
> + flash LED current source, LDO and synchronous Buck converter for portable
> + applications. It is interfaced to host controller using I2C interface. The
> + battery fuel gauge uses a separate I2C bus.
> +
> +properties:
> + compatible:
> + const: richtek,rt5033
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + regulators:
> + type: object
> + $ref: /schemas/regulator/richtek,rt5033-regulator.yaml#
> +
> + charger:
> + type: object
> + $ref: /schemas/power/supply/richtek,rt5033-charger.yaml#
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + i2c@0 {
i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@34 {
> + compatible = "richtek,rt5033";
> + reg = <0x34>;
> +
> + interrupt-parent = <&msmgpio>;
> + interrupts = <62 IRQ_TYPE_EDGE_FALLING>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pmic_int_default>;
> +
> + regulators {
> + safe_ldo_reg: SAFE_LDO {
> + regulator-name = "SAFE_LDO";
> + regulator-min-microvolt = <4900000>;
> + regulator-max-microvolt = <4900000>;
> + regulator-always-on;
> + };
> + ldo_reg: LDO {
> + regulator-name = "LDO";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + };
> + buck_reg: BUCK {
> + regulator-name = "BUCK";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> + };
> +
> + charger {
> + compatible = "richtek,rt5033-charger";
> + richtek,pre-uamp = <450000>;
> + richtek,fast-uamp = <1000000>;
> + richtek,eoc-uamp = <150000>;
> + richtek,pre-threshold-uvolt = <3500000>;
> + richtek,const-uvolt = <4350000>;
> + extcon = <&muic>;
> + };
> + };
> + };
> +
> + i2c@1 {
This should be a separate example entry.
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + battery@35 {
> + compatible = "richtek,rt5033-battery";
> + reg = <0x35>;
> + interrupt-parent = <&msmgpio>;
> + interrupts = <121 IRQ_TYPE_EDGE_FALLING>;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt5033-charger.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt5033-charger.yaml
> new file mode 100644
> index 000000000000..996c2932927d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/richtek,rt5033-charger.yaml
> @@ -0,0 +1,76 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/richtek,rt5033-charger.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Richtek RT5033 PIMC Battery Charger
> +
> +maintainers:
> + - Jakob Hauser <jahau@...ketmail.com>
> +
> +description: |
> + The battery charger of the multifunction device RT5033 has to be instantiated
> + under sub-node named "charger" using the following format.
> +
> +properties:
> + compatible:
> + const: richtek,rt5033-charger
> +
> + richtek,pre-uamp:
Use defined standard unit type suffixes.
> + description: |
> + Current of pre-charge mode. The pre-charge current levels are 350 mA to
> + 650 mA programmed by I2C per 100 mA.
> + maxItems: 1
> +
> + richtek,fast-uamp:
> + description: |
> + Current of fast-charge mode. The fast-charge current levels are 700 mA
> + to 2000 mA programmed by I2C per 100 mA.
> + maxItems: 1
> +
> + richtek,eoc-uamp:
> + description: |
> + This property is end of charge current. Its level ranges from 150 mA to
> + 600 mA. Between 150 mA and 300 mA in 50 mA steps, between 300 mA and 600 mA
> + in 100 mA steps.
> + maxItems: 1
> +
> + richtek,pre-threshold-uvolt:
> + description: |
> + Voltage of pre-charge mode. If the battery voltage is below the pre-charge
> + threshold voltage, the charger is in pre-charge mode with pre-charge current.
> + Its levels are 2.3 V to 3.8 V programmed by I2C per 0.1 V.
> + maxItems: 1
> +
> + richtek,const-uvolt:
> + description: |
> + Battery regulation voltage of constant voltage mode. This voltage levels from
> + 3.65 V to 4.4 V by I2C per 0.025 V.
> + maxItems: 1
> +
> + extcon:
This is deprecated. There's standard connector bindings now.
> + description: |
> + Phandle to the extcon device.
> + maxItems: 1
> +
> +required:
> + - richtek,pre-uamp
> + - richtek,fast-uamp
> + - richtek,eoc-uamp
> + - richtek,pre-threshold-uvolt
> + - richtek,const-uvolt
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + charger {
> + compatible = "richtek,rt5033-charger";
> + richtek,pre-uamp = <450000>;
> + richtek,fast-uamp = <1000000>;
> + richtek,eoc-uamp = <150000>;
> + richtek,pre-threshold-uvolt = <3500000>;
> + richtek,const-uvolt = <4350000>;
> + extcon = <&muic>;
> + };
> diff --git a/Documentation/devicetree/bindings/regulator/richtek,rt5033-regulator.yaml b/Documentation/devicetree/bindings/regulator/richtek,rt5033-regulator.yaml
> new file mode 100644
> index 000000000000..61b074488db4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/richtek,rt5033-regulator.yaml
> @@ -0,0 +1,45 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/richtek,rt5033-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Richtek RT5033 PIMC Voltage Regulator
> +
> +maintainers:
> + - Jakob Hauser <jahau@...ketmail.com>
> +
> +description: |
> + The regulators of RT5033 have to be instantiated under a sub-node named
> + "regulators". For SAFE_LDO voltage there is only one value of 4.9 V. LDO
> + voltage ranges from 1.2 V to 3.0 V in 0.1 V steps. BUCK voltage ranges from
> + 1.0 V to 3.0 V in 0.1 V steps.
> +
> +patternProperties:
> + "^(SAFE_LDO|LDO|BUCK)$":
Lowercase preferred for node names.
> + type: object
> + $ref: /schemas/regulator/regulator.yaml#
> + unevaluatedProperties: false
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + regulators {
Just 1 complete example in the MFD binding please.
> + safe_ldo_reg: SAFE_LDO {
> + regulator-name = "SAFE_LDO";
> + regulator-min-microvolt = <4900000>;
> + regulator-max-microvolt = <4900000>;
> + regulator-always-on;
> + };
> + ldo_reg: LDO {
> + regulator-name = "LDO";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + };
> + buck_reg: BUCK {
> + regulator-name = "BUCK";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> + };
> --
> 2.39.1
>
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