From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754659AbaKRN33 (ORCPT ); Tue, 18 Nov 2014 08:29:29 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:21646 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754293AbaKRN3W (ORCPT ); Tue, 18 Nov 2014 08:29:22 -0500 X-AuditID: cbfee68d-f79296d000004278-9f-546b49b0b1ab From: Beomho Seo To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org Cc: sameo@linux.intel.com, lee.jone@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, sre@kernel.org, dbaryshkov@gmail.com, dwmw2@infradead.org, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, cw00.choi@samsung.com, geunsik.lim@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, Beomho Seo Subject: [PATCH v4 4/4] Documentation: Add documentation for rt5033 multifunction device Date: Tue, 18 Nov 2014 22:29:17 +0900 Message-id: <1416317357-7538-5-git-send-email-beomho.seo@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1416317357-7538-1-git-send-email-beomho.seo@samsung.com> References: <1416317357-7538-1-git-send-email-beomho.seo@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrEIsWRmVeSWpSXmKPExsWyRsSkSHeDZ3aIwf+3EhanP21jt5j68Amb xfUvz1ktJj15z2wx/8g5VouJKyczW/S/Wchq8WdCK5vFuVcrGS0m3Z/AYvF+zxlGi29XOpgs Lu+aw2bxufcIo8XS6xeZLCZMX8ti0br3CLvF6W5Wi9O7SyxmTH7J5iDisWbeGkaPy329TB47 Z91l91i5/Aubx+YVWh6bVnWyedy5tofNY97JQI++LasYPT5vkgvgiuKySUnNySxLLdK3S+DK +PzgEWvBV7WKvY86GBsYb8l3MXJySAiYSHyfdosJwhaTuHBvPVsXIxeHkMBSRomTv0+ywxSd 2XedGSIxnVHi5q137BBOG5PEoeYPjCBVbAKaEu+nXGEBsUUEIiTOLpvFAlLELDCJWeLm2x6w ImGBKIn5Zx+CjWURUJVYeqAFzOYVcJVo3vMLqIEDaJ2CxJxJNiBhTgE3idN3/zKD2EJAJf/3 T2IEmSkhMJND4mL7cUaIOQIS3yYfguqVldh0gBniakmJgytusExgFF7AyLCKUTS1ILmgOCm9 yFCvODG3uDQvXS85P3cTIzAqT/971ruD8fYB60OMAhyMSjy8CVOzQoRYE8uKK3MPMZoCbZjI LCWanA+M/bySeENjMyMLUxNTYyNzSzMlcV5FqZ/BQgLpiSWp2ampBalF8UWlOanFhxiZODil Ghgn/HCbb9ssdIfN6EXrIklbB853W40UNDbdbveJ2WEkK3xTds3p9/f6Js36+Khre8rtH2H/ Trh33O16W76J746f8Lzbx61OFtfv/bRt9cqgG9x33ESjDk99y3+k317ukDznTMdgxTm37unL zND7IP1R6JiwrdyZKpuMi4khW7oCSqSPeC51kc5XYinOSDTUYi4qTgQA8XtGJMUCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrDIsWRmVeSWpSXmKPExsVy+t9jQd0NntkhBi+v8Fmc/rSN3WLqwyds Fte/PGe1mPTkPbPF/CPnWC0mrpzMbNH/ZiGrxZ8JrWwW516tZLSYdH8Ci8X7PWcYLb5d6WCy uLxrDpvF594jjBZLr19kspgwfS2LReveI+wWp7tZLU7vLrGYMfklm4OIx5p5axg9Lvf1Mnns nHWX3WPl8i9sHptXaHlsWtXJ5nHn2h42j3knAz36tqxi9Pi8SS6AK6qB0SYjNTEltUghNS85 PyUzL91WyTs43jne1MzAUNfQ0sJcSSEvMTfVVsnFJ0DXLTMH6DslhbLEnFKgUEBicbGSvh2m CaEhbroWMI0Rur4hQXA9RgZoIGENY8bnB49YC76qVex91MHYwHhLvouRk0NCwETizL7rzBC2 mMSFe+vZuhi5OIQEpjNK3Lz1jh3CaWOSONT8gRGkik1AU+L9lCssILaIQITE2WWzWECKmAUm MUvcfNsDViQsECUx/+xDdhCbRUBVYumBFjCbV8BVonnPL6AGDqB1ChJzJtmAhDkF3CRO3/0L doUQUMn//ZMYJzDyLmBkWMUomlqQXFCclJ5rqFecmFtcmpeul5yfu4kRHPPPpHYwrmywOMQo wMGoxMObMDUrRIg1say4MvcQowQHs5II77luoBBvSmJlVWpRfnxRaU5q8SFGU6CjJjJLiSbn A9NRXkm8obGJmZGlkbmhhZGxuZI474FW60AhgfTEktTs1NSC1CKYPiYOTilgXHII+1VLbTlY aDvz39V77HuDWtg91wiviyyPcnzrUrKsX5v55s09pj0swc4ySm8+d8ZtkrLfHM/waidLxrmN qSd+ZX/ll/qu5GLJvyTnE5vNYucjkWtZj7FsOi9ckfP1Q6h1+cIZ4RI277aGlXhdm5l8+5vC And/16fGlxN6RJ7yfdxlZPJBiaU4I9FQi7moOBEAhhY90Q8DAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch device tree binding documentation for rt5033 multifunction device. Cc: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Ian campbell Cc: Kumar Gala Signed-off-by: Beomho Seo Acked-by: Chanwoo Choi --- Changes in v4: Changes in v3: - none. Changes in v2: - Revise binding documentation. --- Documentation/devicetree/bindings/mfd/rt5033.txt | 108 ++++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 2 files changed, 109 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..52a6d33 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/rt5033.txt @@ -0,0 +1,108 @@ +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" usinge 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,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,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,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. +- richtek,eoc-uamp : This property is end of charge current. Its level 150 mA + to 200 mA. + + charger { + compatible = "richtek,rt5033-charger"; + richtek,pre-uamp = <350000>; + richtek,pre-threshold-uvolt = <3400000>; + richtek,fast-uamp = <2000000>; + richtek,const-uvolt = <4350000>; + richtek,eoc-uamp = <250000>; + }; + + +Fuelgauge: There fuelgauge of RT5033 to be instantiated node named "fuelgauge" +using the following format. + +Required properties: +- compatible = Must be "richtek,rt5033-battery". + + i2c_fuel: i2c@1 { + compatible = "i2c-gpio"; + standard i2c-gpio constraints... + fuelgauge { + compatible = "richtek,rt5033-battery". + }; + }; + + +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,pre-threshold-uvolt = <3400000>; + richtek,fast-uamp = <2000000>; + richtek,const-uvolt = <4350000>; + richtek,eoc-uamp = <250000>; + }; + + }; + + i2c_fuel: i2c@10 { + compatible = "i2c-gpio"; + gpios = <&gpm3 1 0 + &gpm3 0 0>; + + fuel: rt5033-battery@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 723999d..611b543 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -124,6 +124,7 @@ 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 -- 1.7.9.5