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charset="utf-8" Current driver assume PWR_AVG and VI_AVG as 1 by default, and user needs to set sample averaging via sysfs manually. This patch parses "pwr-avg" and "vi-avg" from device tree, and setting sample averaging during probe. Signed-off-by: Potin Lai --- drivers/hwmon/pmbus/adm1275.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index d311e0557401..97faff4e3111 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -475,6 +475,7 @@ static int adm1275_probe(struct i2c_client *client) int vindex =3D -1, voindex =3D -1, cindex =3D -1, pindex =3D -1; int tindex =3D -1; u32 shunt; + u32 avg; =20 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA @@ -756,6 +757,30 @@ static int adm1275_probe(struct i2c_client *client) return -ENODEV; } =20 + if (data->have_power_sampling && + of_property_read_u32(client->dev.of_node, + "pwr-avg", &avg) =3D=3D 0) { + avg =3D clamp_val(avg, 1, ADM1275_SAMPLES_AVG_MAX); + ret =3D adm1275_write_pmon_config(data, client, + true, ilog2(avg)); + if (ret < 0) { + dev_err(&client->dev, "set pwr-avg failed, ret =3D %d", + ret); + return ret; + } + } + + if (of_property_read_u32(client->dev.of_node, "vi-avg", &avg) =3D=3D 0) { + avg =3D clamp_val(avg, 1, ADM1275_SAMPLES_AVG_MAX); + ret =3D adm1275_write_pmon_config(data, client, + false, ilog2(avg)); + if (ret < 0) { + dev_err(&client->dev, "set vi-avg failed, ret =3D %d", + ret); + return ret; + } + } + if (voindex < 0) voindex =3D vindex; if (vindex >=3D 0) { --=20 2.17.1 From nobody Wed Jun 24 02:11:39 2026 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 7DC72C433F5 for ; Wed, 23 Feb 2022 16:38:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242970AbiBWQjO (ORCPT ); Wed, 23 Feb 2022 11:39:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242948AbiBWQjH (ORCPT ); Wed, 23 Feb 2022 11:39:07 -0500 Received: from APC01-SG2-obe.outbound.protection.outlook.com (mail-sgaapc01on2114.outbound.protection.outlook.com [40.107.215.114]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8790B91CF; 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Wed, 23 Feb 2022 16:38:33 +0000 From: Potin Lai To: Guenter Roeck , Jean Delvare , Rob Herring , Krzysztof Kozlowski Cc: Patrick Williams , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Potin Lai Subject: [PATCH 2/2] dt-bindings: hwmon: Add sample averaging property for ADM1275 Date: Thu, 24 Feb 2022 00:38:17 +0800 Message-Id: <20220223163817.30583-3-potin.lai@quantatw.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220223163817.30583-1-potin.lai@quantatw.com> References: <20220223163817.30583-1-potin.lai@quantatw.com> X-ClientProxiedBy: HK2PR02CA0138.apcprd02.prod.outlook.com (2603:1096:202:16::22) To HK0PR04MB3282.apcprd04.prod.outlook.com (2603:1096:203:89::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 9c81b200-ff5f-4e62-7c9c-08d9f6eaee06 X-MS-TrafficTypeDiagnostic: TY2PR04MB3456:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" Add binding information for "pwr-avg" and "vi-avg" properties Signed-off-by: Potin Lai --- .../devicetree/bindings/hwmon/adi,adm1275.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml b/Doc= umentation/devicetree/bindings/hwmon/adi,adm1275.yaml index 223393d7cafd..2525a67a880e 100644 --- a/Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml +++ b/Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml @@ -37,6 +37,14 @@ properties: description: Shunt resistor value in micro-Ohm. =20 + vi-avg: + description: + Sample averaging for current and voltage. + + pwr-avg: + description: + Sample averaging for power. + required: - compatible - reg @@ -53,5 +61,7 @@ examples: compatible =3D "adi,adm1272"; reg =3D <0x10>; shunt-resistor-micro-ohms =3D <500>; + vi-avg =3D <128>; + pwr-avg =3D <128>; }; }; --=20 2.17.1