From patchwork Tue May 2 09:12:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Phil Reid X-Patchwork-Id: 757483 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3wHFvy0XnNz9s7M for ; Tue, 2 May 2017 19:13:50 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751687AbdEBJNs (ORCPT ); Tue, 2 May 2017 05:13:48 -0400 Received: from anchovy1.45ru.net.au ([203.30.46.145]:33495 "EHLO anchovy.45ru.net.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751606AbdEBJMo (ORCPT ); Tue, 2 May 2017 05:12:44 -0400 Received: (qmail 3306 invoked by uid 5089); 2 May 2017 09:12:41 -0000 Received: by simscan 1.2.0 ppid: 3152, pid: 3153, t: 0.0576s scanners: regex: 1.2.0 attach: 1.2.0 clamav: 0.88.3/m:40/d:1950 X-RBL: $rbltext Received: from unknown (HELO preid-centos7.electromag.com.au) (preid@electromag.com.au@203.59.230.133) by anchovy1.45ru.net.au with ESMTPA; 2 May 2017 09:12:40 -0000 Received: by preid-centos7.electromag.com.au (Postfix, from userid 1000) id D274C302E22BF; Tue, 2 May 2017 17:12:37 +0800 (AWST) From: Phil Reid To: wsa@the-dreams.de, robh+dt@kernel.org, mark.rutland@arm.com, sre@kernel.org, peda@axentia.se, preid@electromag.com.au, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, benjamin.tissoires@redhat.com Cc: Karl-Heinz Schneider Subject: [PATCH v6 6/8] Documentation: Add sbs-manager device tree node documentation Date: Tue, 2 May 2017 17:12:24 +0800 Message-Id: <1493716346-58517-7-git-send-email-preid@electromag.com.au> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1493716346-58517-1-git-send-email-preid@electromag.com.au> References: <1493716346-58517-1-git-send-email-preid@electromag.com.au> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org From: Karl-Heinz Schneider This patch adds device tree documentation for the sbs-manager Reviewed-by: Phil Reid Signed-off-by: Karl-Heinz Schneider Signed-off-by: Phil Reid Acked-by: Rob Herring --- .../bindings/power/supply/sbs,sbs-manager.txt | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt diff --git a/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt new file mode 100644 index 0000000..389016c --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt @@ -0,0 +1,66 @@ +Binding for sbs-manager + +Required properties: +- compatible: ",", "sbs,sbs-charger" as fallback. The part + number compatible string might be used in order to take care of vendor + specific registers. +- reg: integer, i2c address of the device. Should be <0xa>. +Optional properties: +- gpio-controller: Marks the port as GPIO controller. + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. +- #gpio-cells: Should be <2>. The first cell is the pin number, the second cell + is used to specify optional parameters: + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. + +From OS view the device is basically an i2c-mux used to communicate with up to +four smart battery devices at address 0xb. The driver actually implements this +behaviour. So standard i2c-mux nodes can be used to register up to four slave +batteries. Channels will be numerated starting from 1 to 4. + +Example: + +batman@0a { + compatible = "lltc,ltc1760", "sbs,sbs-manager"; + reg = <0x0a>; + #address-cells = <1>; + #size-cells = <0>; + + gpio-controller; + #gpio-cells = <2>; + + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + + battery@0b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 1 1>; + }; + }; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + battery@0b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 2 1>; + }; + }; + + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + + battery@0b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 3 1>; + }; + }; +};