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Message-ID: <20150309074328.GG3318@x1>
Date: Mon, 9 Mar 2015 07:43:28 +0000
From: Lee Jones <lee.jones@...aro.org>
To: Beomho Seo <beomho.seo@...sung.com>
Cc: broonie@...nel.org, robh+dt@...nel.org, pawel.moll@....com,
mark.rutland@....com, ijc+devicetree@...lion.org.uk,
galak@...eaurora.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
sre@...nel.org, cw00.choi@...sung.com, sangbae90.lee@...sung.com,
inki.dae@...sung.com, sw0312.kim@...sung.com
Subject: Re: [PATCH 2/2] Documentation: Add documentation for rt5033
multifunction device
FAO Mark,
> This patch device tree binding documentation for rt5033 multifunction device.
>
> Cc: Sebastian Reichel <sre@...nel.org>
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: Mark Brown <broonie@...nel.org>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Pawel Moll <pawel.moll@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Ian campbell <ijc+devicetree@...lion.org.uk>
> Cc: Kumar Gala <galak@...eaurora.org>
> Signed-off-by: Beomho Seo <beomho.seo@...sung.com>
> Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
> Changes in v5
> - Remove wrong Acked-by.
> Changes in v4
> - none.
> Changes in v3
> - Add Acked-by
> Changes in v2
> - Fix incorrect typo.
> - Align -uamp and -uvolt names with regulator binding suffixes.
> - Drop incorrect phandle.
> - Fix incorrect example.
> ---
> Documentation/devicetree/bindings/mfd/rt5033.txt | 101 ++++++++++++++++++++
[...]
> .../devicetree/bindings/vendor-prefixes.txt | 1 +
This change will be low resistance. I suggest you separate it out
into another patch.
> 2 files changed, 102 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/rt5033.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/rt5033.txt b/Documentation/devicetree/bindings/mfd/rt5033.txt
> new file mode 100644
> index 0000000..64b23e8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/rt5033.txt
> @@ -0,0 +1,101 @@
> +Richtek RT5033 Power management Integrated Circuit
> +
> +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.
> +
> +Required properties:
> +- compatible : Must be "richtek,rt5033"
> +- reg : Specifies the i2c slave address of general part.
> +- interrupts : This i2c devices has an IRQ line connected to the main SoC.
> +- interrupt-parent : The parent interrupt controller.
> +
> +Optional node:
> +Regulators: The regulators of RT5033 have to be instantiated under sub-node
> +named "regulators" using the following format.
> +
> + regulators {
> + regulator-name {
> + regulator-name = LDO/BUCK
> + regulator subnodes called X, Y and Z
> + };
> + };
> + refer Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +
> +Battery charger: There battery charger of RT5033 have to be instantiated under
> +sub-node named "charger" using the following format.
> +
> +Required properties:
> +- compatible : Must be "richtek,rt5033-charger".
> +- richtek,pre-uamp : Current of pre-charge mode. The pre-charge current levels
> + are 350 mA to 650 mA programmed by I2C per 100 mA.
> +- richtek,fast-uamp : Current of fast-charge mode. The fast-charge current
> + levels are 700 mA to 2000 mA programmed by I2C per 100 mA.
> +- richtek,eoc-uamp : This property is end of charge current. Its level 150 mA
> + to 200 mA.
> +- richtek,pre-threshold-uvolt : Voltage of threshold pre-charge mode. Battery
> + voltage is below 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.
> +- richtek,const-uvolt : Battery regulation voltage of constant voltage mode.
> + This voltage level 3.65 V to 4.4 V bye I2C per 0.025 V.
These require a Regulator (or Charger?) Ack.
> + charger {
> + compatible = "richtek,rt5033-charger";
> + richtek,pre-uamp = <350000>;
> + richtek,fast-uamp = <2000000>;
> + richtek,eoc-uamp = <250000>;
> + richtek,pre-threshold-uvolt = <3400000>;
> + richtek,const-uvolt = <4350000>;
> +
> + };
> +
> +
> +Fuelgauge: There fuelgauge of RT5033 to be instantiated node named "fuelgauge"
> +using the following format.
> +
> +Required properties:
> +- compatible = Must be "richtek,rt5033-battery".
> +
> + rt5033@35 {
> + compatible = "richtek,rt5033-battery";
> + interrupt-parent = <&gpx2>;
> + interrupts = <3 0>;
> + reg = <0x35>;
> + };
> +
> +Example:
> +
> + rt5033@34 {
> + compatible = "richtek,rt5033";
> + reg = <0x34>;
> + interrupt-parent = <&gpx1>;
> + interrupts = <5 0>;
> +
> + regulators {
> + buck_reg: BUCK {
> + regulator-name = "BUCK";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> + };
> +
> + charger {
> + compatible = "richtek,rt5033-charger";
> + richtek,pre-uamp = <350000>;
> + richtek,fast-uamp = <2000000>;
> + richtek,eoc-uamp = <250000>;
> + richtek,pre-threshold-uvolt = <3400000>;
> + richtek,const-uvolt = <4350000>;
> + };
> +
> + };
> +
> + rt5033@35 {
> + compatible = "richtek,rt5033-battery";
> + interrupt-parent = <&gpx2>;
> + interrupts = <3 0>;
> + reg = <0x35>;
> + };
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index 389ca13..73d235a 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -149,6 +149,7 @@ ralink Mediatek/Ralink Technology Corp.
> ramtron Ramtron International
> realtek Realtek Semiconductor Corp.
> renesas Renesas Electronics Corporation
> +richtek Richtek Technology Corporation
> ricoh Ricoh Co. Ltd.
> rockchip Fuzhou Rockchip Electronics Co., Ltd
> samsung Samsung Semiconductor
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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