From patchwork Wed Jul 19 02:14:08 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Phil Reid X-Patchwork-Id: 9850317 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9E661601C8 for ; Wed, 19 Jul 2017 02:14:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8621928694 for ; Wed, 19 Jul 2017 02:14:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7AEC12869D; Wed, 19 Jul 2017 02:14:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C7F7A28694 for ; Wed, 19 Jul 2017 02:14:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752626AbdGSCOf (ORCPT ); Tue, 18 Jul 2017 22:14:35 -0400 Received: from anchovy1.45ru.net.au ([203.30.46.145]:36238 "EHLO anchovy.45ru.net.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752627AbdGSCOY (ORCPT ); Tue, 18 Jul 2017 22:14:24 -0400 Received: (qmail 28410 invoked by uid 5089); 19 Jul 2017 02:14:22 -0000 Received: by simscan 1.2.0 ppid: 28317, pid: 28318, t: 0.0574s 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; 19 Jul 2017 02:14:21 -0000 Received: by preid-centos7.electromag.com.au (Postfix, from userid 1000) id 43D3933C29988; Wed, 19 Jul 2017 10:14:15 +0800 (AWST) From: Phil Reid To: wsa@the-dreams.de, robh+dt@kernel.org, mark.rutland@arm.com, sre@kernel.org, jdelvare@suse.com, jglauber@cavium.com, david.daney@cavium.com, 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 v9 6/9] Documentation: Add sbs-manager device tree node documentation Date: Wed, 19 Jul 2017 10:14:08 +0800 Message-Id: <1500430451-43858-7-git-send-email-preid@electromag.com.au> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1500430451-43858-1-git-send-email-preid@electromag.com.au> References: <1500430451-43858-1-git-send-email-preid@electromag.com.au> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Karl-Heinz Schneider This patch adds device tree documentation for the sbs-manager Signed-off-by: Karl-Heinz Schneider Signed-off-by: Phil Reid Acked-by: Rob Herring Reviewed-by: Sebastian Reichel --- .../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..4b219557 --- /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@a { + 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@b { + 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@b { + 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@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 3 1>; + }; + }; +};