From patchwork Sat Apr 7 13:59:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Craig Tatlor X-Patchwork-Id: 10327845 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 B1BA16053F for ; Sat, 7 Apr 2018 14:00:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A32EE28668 for ; Sat, 7 Apr 2018 14:00:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 97F8C295D0; Sat, 7 Apr 2018 14:00:25 +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=-7.8 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable 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 3BF9628668 for ; Sat, 7 Apr 2018 14:00:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751967AbeDGOAL (ORCPT ); Sat, 7 Apr 2018 10:00:11 -0400 Received: from mail-wr0-f193.google.com ([209.85.128.193]:42237 "EHLO mail-wr0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751926AbeDGOAJ (ORCPT ); Sat, 7 Apr 2018 10:00:09 -0400 Received: by mail-wr0-f193.google.com with SMTP id s18so4028111wrg.9; Sat, 07 Apr 2018 07:00:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=yZmxzOIBiHi1qC+Qn/37m/M9pZawE0RbZYAJS0N6Jgs=; b=jFiG3hEghJIq5PM9LLCACNM16zskJgy5nw1f+Lsws8Yc2fCDhAgHCYyUWgYt+WBVoU tjpkrjyopoACic7wVDdI0sy5kr7DS6rjBkdVxkqDfM/p9OW0BCWkt2ddkR+c13KfvSB9 0/WXAFgBsjC7biF9GHIfd/wb+q82XJYlb2wfRbkPJd9qK4f0avB7fnh4MRpk/RDn7Sr4 Zqdzd6IMo1wpvs2uagvsx7GAjkq0CSFg3sEF5qnoMCnIUOEO0jAemw2nUUiiK8kNjzA4 JqRWAwTdpiwO7qUiVphMKJN5eQLBv/Y+98bb/48K/3UMPM3K/cY85LqEyF4dOWjTCi79 gwwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=yZmxzOIBiHi1qC+Qn/37m/M9pZawE0RbZYAJS0N6Jgs=; b=sS/4q4Hkkyanvjd3S/8CbrP7MhHN1wjIDXbnamw6oO6qYWVTjHUJLov1hzkM/JLArf 5SgZFSGQI/rnepPDbzSxC2CZlm9qLp6g4yiZ7QyO45WdaVFMnb+89/1ofz41CJ45KEhI iRvCqJ1k2TWgLGk6QjWj3Xm86XFDbjYLh5E1DEvWZcW3sKw5Q0XugE+rmq69RrWTfDEm fIy2Zb7EbcJAFLTzezGTimqRCUcxkJO+EVJzOEkk/bMrjmQl4I/X1nERMLof5J3yjU7t MEFLCLvf2WkjChC40WGJr8rKWFGqvzzrYID+pg9ikUo1jQlUEzmunG4xM5RnzJAaVZMI oTPg== X-Gm-Message-State: AElRT7HUMKD9dejufs4wUf83c+LODIWrJRm+f9DtMr+ckmAKyCB0yUEi nEgLRqZ8cBUBrV7ZPxUFMQ== X-Google-Smtp-Source: AIpwx4+VmJdnlSPD/7iK7V93ZBYfizSodoKvcgbXVMUUwFX/CLuqt7kW7Fv+Zl4Eh03IIR7Y6pUkrg== X-Received: by 10.223.128.98 with SMTP id 89mr21335821wrk.141.1523109607796; Sat, 07 Apr 2018 07:00:07 -0700 (PDT) Received: from arch.home (host86-177-67-114.range86-177.btcentralplus.com. [86.177.67.114]) by smtp.googlemail.com with ESMTPSA id y191sm23994939wme.14.2018.04.07.07.00.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 Apr 2018 07:00:07 -0700 (PDT) From: Craig Tatlor Cc: ctatlor97@gmail.com, linux-arm-msm@vger.kernel.org, Sebastian Reichel , Rob Herring , Mark Rutland , Mauro Carvalho Chehab , "David S. Miller" , Greg Kroah-Hartman , Linus Walleij , Andrew Morton , Randy Dunlap , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 2/3] dt-bindings: power: supply: qcom_bms: Add bindings Date: Sat, 7 Apr 2018 14:59:20 +0100 Message-Id: <20180407135934.26122-2-ctatlor97@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180407135934.26122-1-ctatlor97@gmail.com> References: <20180407135934.26122-1-ctatlor97@gmail.com> To: unlisted-recipients:; (no To-header on input) 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 Add bindings for the Qualcomm Battery Monitoring system. Signed-off-by: Craig Tatlor --- .../bindings/power/supply/qcom_bms.txt | 93 +++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/qcom_bms.txt diff --git a/Documentation/devicetree/bindings/power/supply/qcom_bms.txt b/Documentation/devicetree/bindings/power/supply/qcom_bms.txt new file mode 100644 index 000000000000..6296399edc09 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/qcom_bms.txt @@ -0,0 +1,93 @@ +Qualcomm Battery Measurement System + +The Qualcomm Battery Measurement System is found inside of Qualcomm PM8941 +PMICs. It provides OCV and coulomb counter registers that allow the kernel +to infer a capacity level. + +Required properties: +- compatible: Should contain "qcom,pm8941-bms". +- reg: Specifies the SPMI address and length of the + controller's registers. +- interrupts: OCV threshold interrupt. +- io-channels: Should contain IIO channel specifier for the + ADC channel that reports battery temperature. +- io-channel-names: Should contain "temp". +- qcom,fcc-temp-legend: An array containing the temperature, in degC, + for each column of the FCC lookup table. +- qcom,fcc-lut: An array of FCC values in mah, one entry for each + temperature defined in in qcom,fcc-temp-legend. +- qcom,ocv-temp-legend: An array containing the temperature, in degC, + for each column of the OCV lookup table. +- qcom,ocv-capacity-legend: An array containing the capacity for each + row of the OCV lookup table. +- qcom,ocv-lut: An array of OCV values in mV, one entry for each + capacity defined in qcom,ocv-capacity-legend. + +Example: + + pm8941_vadc: vadc@3100 { + compatible = "qcom,spmi-vadc"; + reg = <0x3100>; + interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>; + #address-cells = <1>; + #size-cells = <0>; + #io-channel-cells = <1>; + + bat_temp { + reg = ; + }; + }; + + bms@4000 { + compatible = "qcom,pm8941-bms"; + reg = <0x4000>; + interrupts = <0x0 0x40 0x4 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "ocv_thr"; + + io-channels = <&pm8941_vadc VADC_LR_MUX1_BAT_THERM>; + io-channel-names = "temp"; + + qcom,fcc-temp-legend = /bits/ 8 <(-10) 0 25 50 65>; + qcom,fcc-lut = /bits/ 16 <6010 6070 6680 6780 6670>; + + qcom,ocv-capacity-legend = /bits/ 8 <100 95 90 85 + 80 75 70 65 + 60 55 50 45 + 40 35 30 25 + 20 15 10 9 + 8 7 6 5 4 + 3 2 1 0>; + + qcom,ocv-temp-legend = /bits/ 8 <(-10) 0 25 50 65>; + qcom,ocv-lut = /bits/ 16 <4288 4288 4306 4315 4315 + 4261 4241 4259 4266 4246 + 4201 4181 4201 4207 4187 + 4153 4133 4150 4155 4135 + 4105 4085 4100 4104 4084 + 4058 4038 4052 4058 4038 + 4012 3992 4004 4014 3994 + 3970 3950 3959 3971 3951 + 3931 3911 3915 3927 3907 + 3899 3879 3880 3884 3864 + 3873 3853 3851 3853 3833 + 3848 3828 3827 3829 3809 + 3829 3809 3808 3809 3789 + 3815 3795 3791 3791 3771 + 3801 3781 3775 3772 3752 + 3785 3765 3751 3746 3726 + 3767 3747 3727 3719 3699 + 3750 3730 3702 3692 3672 + 3728 3708 3680 3672 3652 + 3720 3700 3676 3665 3645 + 3712 3692 3670 3660 3645 + 3695 3675 3658 3648 3633 + 3662 3647 3629 3620 3610 + 3620 3605 3589 3580 3570 + 3562 3552 3538 3529 3519 + 3490 3480 3474 3470 3465 + 3403 3398 3388 3380 3375 + 3320 3300 3255 3221 3206 + 3000 3000 3000 3000 3000>; + }; + }; +};