From patchwork Wed Oct 25 13:44:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: marius.cristea@microchip.com X-Patchwork-Id: 13436163 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 60C0CC25B47 for ; Wed, 25 Oct 2023 13:44:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234709AbjJYNok (ORCPT ); Wed, 25 Oct 2023 09:44:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233757AbjJYNoj (ORCPT ); Wed, 25 Oct 2023 09:44:39 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D87A913D; Wed, 25 Oct 2023 06:44:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1698241477; x=1729777477; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=a9ypiX+SDR4b3cxwKKOrAMbEE7xPUJwX0R6Z5CRRadY=; b=T2eNObRo8vfoS7KSn5/wGt/jNvR7t4TXJMNTahnUSjZNdKwFzDhTBGiv vKR2PgDwjygYX2AjdPHO+O/tj+KFeeMwo5OhWHANYmLhxKzghj5pvwzjB 2586dacm0HIgDH5az/lpTnFW+6w3LYLipj2zRhUUELyu9yoq10hueqgQw y2n4DT/at58FHwnPtvvUPZho5V+iFaYx8Nl9cc7qJnPZuqgRsCnVtdcTB VJwUUsnmdTp66KwZUn69pk606kCawhdLaag/mgk2HMTB80X6EQ69tdTy9 IhbvRpM+eENfxwv8Sh7jLm6h032cMOJ2rBLgNTm5vzy7cmd8c+l6BWJmy Q==; X-CSE-ConnectionGUID: 0glr9WvsTTKB7/1tnc1ysA== X-CSE-MsgGUID: dwCoq9ftRqC0sU3ss26Syw== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.03,250,1694761200"; d="scan'208";a="241332153" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa5.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 25 Oct 2023 06:44:36 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Wed, 25 Oct 2023 06:44:20 -0700 Received: from marius-VM.mshome.net (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Wed, 25 Oct 2023 06:44:18 -0700 From: To: , , CC: , , , , , Subject: [PATCH v2 1/2] dt-bindings: iio: adc: adding dt-bindings for PAC193X Date: Wed, 25 Oct 2023 16:44:03 +0300 Message-ID: <20231025134404.131485-2-marius.cristea@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231025134404.131485-1-marius.cristea@microchip.com> References: <20231025134404.131485-1-marius.cristea@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Marius Cristea This is the device tree schema for iio driver for Microchip PAC193X series of Power Monitors with Accumulator. Signed-off-by: Marius Cristea --- .../bindings/iio/adc/microchip,pac1934.yaml | 146 ++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml new file mode 100644 index 000000000000..837053ed8a71 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/microchip,pac1934.yaml @@ -0,0 +1,146 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/microchip,pac1934.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip PAC1934 Power Monitors with Accumulator + +maintainers: + - Marius Cristea + +description: | + Bindings for the Microchip family of Power Monitors with Accumulator. + The datasheet for PAC1931, PAC1932, PAC1933 and PAC1934 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/PAC1931-Family-Data-Sheet-DS20005850E.pdf + +properties: + compatible: + enum: + - microchip,pac1931 + - microchip,pac1932 + - microchip,pac1933 + - microchip,pac1934 + + reg: + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + interrupts: + description: IRQ line of the ADC + maxItems: 1 + + drive-open-drain: + description: The IRQ signal is configured as open-drain. + type: boolean + maxItems: 1 + + microchip,slow-io: + type: boolean + description: | + A GPIO used to trigger a change is sampling rate (lowering the chip power consumption). + In default mode, if this pin is forced high, sampling rate is forced to eight + samples/second. When it is forced low, the sampling rate is 1024 samples/second unless + a different sample rate has been programmed. + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +patternProperties: + "^channel@[1-4]+$": + type: object + $ref: adc.yaml + description: Represents the external channels which are connected to the ADC. + + properties: + reg: + description: | + The channel number. + It can have up to 4 channels, numbered from 1 to 4. + items: + - minimum: 1 + maximum: 4 + + shunt-resistor-micro-ohms: + description: | + Value in micro Ohms of the shunt resistor connected between + the SENSE+ and SENSE- inputs, across which the current is measured. Value + is needed to compute the scaling of the measured current. + + label: + $ref: /schemas/types.yaml#/definitions/string + description: Name of the monitored power rail. + + bipolar: + description: Whether the channel is bi-directional. + type: boolean + + required: + - reg + - shunt-resistor-micro-ohms + + additionalProperties: false + +allOf: + - if: + required: + - interrupts + then: + required: + - drive-open-drain + else: + properties: + drive-open-drain: false + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pac193x: pac193x@10 { + compatible = "microchip,pac1934"; + reg = <0x10>; + + #address-cells = <1>; + #size-cells = <0>; + + channel@1 { + reg = <0x1>; + shunt-resistor-micro-ohms = <24900000>; + label = "CPU"; + }; + + channel@2 { + reg = <0x2>; + shunt-resistor-micro-ohms = <49900000>; + label = "GPU"; + }; + + channel@3 { + reg = <0x3>; + shunt-resistor-micro-ohms = <75000000>; + label = "MEM"; + bipolar; + }; + + channel@4 { + reg = <0x4>; + shunt-resistor-micro-ohms = <100000000>; + label = "NET"; + bipolar; + }; + }; + }; + +...