From patchwork Fri Mar 17 22:56:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 664878 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAE92C76196 for ; Fri, 17 Mar 2023 22:57:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229844AbjCQW5P (ORCPT ); Fri, 17 Mar 2023 18:57:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229590AbjCQW5O (ORCPT ); Fri, 17 Mar 2023 18:57:14 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 47D672A160; Fri, 17 Mar 2023 15:57:12 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 92C0060B38; Fri, 17 Mar 2023 22:57:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C280FC433D2; Fri, 17 Mar 2023 22:57:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679093831; bh=lAg4Xy2+8BJY/bgZGAEpY8xxD82o+6FV+hPPHOfIA8c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oEAY7Ff6Y2HehlN2k4co2oL/xIjeYjfSTyCmpriiCHWoNRueEkcE/YfARwr+Rq6vx EpB5rdB92wDJyD3PH1lAsKFzH3h4tKY6Du1Bcq6yjABSzkDdjHmgsciEDrSlut93sC IWB3SyHf0gVPs0K+DLoxM7AlT34ImJwG4luA+mqCeaTe0lfS6pKHfuWca4si+4HZqz a3yuiY8W4ADG1v4GDHYeiEecZ+IctuSWOGpjXf/d64ZaLA0uhWRRxgOkdzr9NSrN8y bspNvyNpi4fKOgC1tA6GnNV/PCpwP/H9GiA8JNOP7zHioPLHuvlj0hGcuGy6F2tTSA KyRvWkISuhSiw== Received: by mercury (Postfix, from userid 1000) id 8470B10620F5; Fri, 17 Mar 2023 23:57:08 +0100 (CET) From: Sebastian Reichel To: Sebastian Reichel Cc: Linus Walleij , Matti Vaittinen , Rob Herring , Krzysztof Kozlowski , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCHv3 01/14] dt-bindings: power: supply: adc-battery: add binding Date: Fri, 17 Mar 2023 23:56:54 +0100 Message-Id: <20230317225707.1552512-2-sre@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230317225707.1552512-1-sre@kernel.org> References: <20230317225707.1552512-1-sre@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add binding for a battery that is only monitored via ADC channels and simple status GPIOs. Reviewed-by: Matti Vaittinen Reviewed-by: Krzysztof Kozlowski Reviewed-by: Linus Walleij Signed-off-by: Sebastian Reichel --- .../bindings/power/supply/adc-battery.yaml | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/adc-battery.yaml diff --git a/Documentation/devicetree/bindings/power/supply/adc-battery.yaml b/Documentation/devicetree/bindings/power/supply/adc-battery.yaml new file mode 100644 index 000000000000..ed9702caedff --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/adc-battery.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/supply/adc-battery.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ADC battery + +maintainers: + - Sebastian Reichel + +description: + Basic battery capacity meter, which only reports basic battery data + via ADC channels and optionally indicate that the battery is full by + polling a GPIO line. + + The voltage is expected to be measured between the battery terminals + and mandatory. The optional current/power channel is expected to + monitor the current/power flowing out of the battery. Last but not + least the temperature channel is supposed to measure the battery + temperature. + +allOf: + - $ref: power-supply.yaml# + +properties: + compatible: + const: adc-battery + + charged-gpios: + description: + GPIO which signals that the battery is fully charged. The GPIO is + often provided by charger ICs, that are not software controllable. + maxItems: 1 + + io-channels: + minItems: 1 + maxItems: 4 + + io-channel-names: + minItems: 1 + items: + - const: voltage + - enum: [ current, power, temperature ] + - enum: [ power, temperature ] + - const: temperature + + monitored-battery: true + +required: + - compatible + - io-channels + - io-channel-names + - monitored-battery + +unevaluatedProperties: false + +examples: + - | + #include + + fuel-gauge { + compatible = "adc-battery"; + charged-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>; + io-channels = <&adc 13>, <&adc 37>; + io-channel-names = "voltage", "current"; + + power-supplies = <&charger>; + monitored-battery = <&battery>; + };