From patchwork Thu Dec 1 19:30:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naresh Solanki X-Patchwork-Id: 629960 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 64474C4708E for ; Thu, 1 Dec 2022 19:31:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230487AbiLATbU (ORCPT ); Thu, 1 Dec 2022 14:31:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231157AbiLATan (ORCPT ); Thu, 1 Dec 2022 14:30:43 -0500 Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 72CBBCA170 for ; Thu, 1 Dec 2022 11:30:34 -0800 (PST) Received: by mail-ej1-x633.google.com with SMTP id fy37so6583143ejc.11 for ; Thu, 01 Dec 2022 11:30:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=9elements.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=/RnyrrQe9Eok5DqIvUFEy0a61qYm6BHFyKDyCC1oYjg=; b=e+bLOFonetP2HdOnP8n/c6Gm+QqVqCobaEemCltMt4hyrSppEym5opqSZWjSrB98HO jEZSTNd1YtCWlfMCrTm9ARtqrrvc8U7tu7lgiCT5ITLd0eCw74M+5EZ4wjCrq4EStIfQ TGJrUEkZhbfttV255uU/UK3mkt2OGcnopFdjtpdJhhwFSVWIEfglhbUCtanOPQ/scqG3 qoSb3KhFWAUMf9O7xRq3LbeARzzNY2C8jZBkuVOfkgAIijxNZz/VHLk3oNqOfTy1t37B mTsWU+Kq2LJyrU5bn/YGN7QqAkSYspqx9ps43Yq5z0ZVQnHB4KLB22ch/wV0Cpj4iaan D3fA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/RnyrrQe9Eok5DqIvUFEy0a61qYm6BHFyKDyCC1oYjg=; b=Gi0b9V1YQr1P7KOjz4dicWw+ucTTVd0SM8E6Y6JwFM7CAVMPcGImwWJoYI8Zh1HeMr IorLBblS+D+/ybJvjqui+8umQRnJfOdpuavsdySMQ8r9e7Q5w4U6o33OmR7m+Amoj2kn 4i88R7CxuJU2c4oZjIAytjv5XA3hixZUPmvcmUJ9ZHAYskG00duOd6F1RGk+9l3X6G9V LXTNgnJ2IDGpKTQH3SR0uKgdL3xawufszB2DYlW+GLhCmHSq8wa6wttrPS0SmTdtPGm6 6HzOh8iNFFckO1UHtg65jlaB/ueSZ4vcrPBWgGuHWojoqKpjjZfIUOuO8Hj1HBr45l7q u2jg== X-Gm-Message-State: ANoB5pmdNSjEBjQEP9dKuFXgUeB38mZuRoxy1MV5Z0aPSjVbABmlC228 YddhHblbwix27qQ4XTz7nMZy8LVXKp9x9fMt X-Google-Smtp-Source: AA0mqf55uiA9d/tZ5QiIxxOqG9g7PCCBwt3ASYo3UsVHG+4RIqcDmQ84vM3oJUeyxP9KnK+Xne8wQQ== X-Received: by 2002:a17:906:6c86:b0:78d:4ba6:f65a with SMTP id s6-20020a1709066c8600b0078d4ba6f65amr58210840ejr.186.1669923032873; Thu, 01 Dec 2022 11:30:32 -0800 (PST) Received: from stroh80.sec.9e.network (ip-078-094-000-051.um19.pools.vodafone-ip.de. [78.94.0.51]) by smtp.gmail.com with ESMTPSA id g15-20020aa7c84f000000b004619f024864sm2054110edt.81.2022.12.01.11.30.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Dec 2022 11:30:32 -0800 (PST) From: Naresh Solanki X-Google-Original-From: Naresh Solanki To: devicetree@vger.kernel.org, Guenter Roeck , Jean Delvare , Liam Girdwood , Mark Brown Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Naresh Solanki Subject: [PATCH v5 3/5] hwmon: (pmbus/core): Notify hwmon events Date: Thu, 1 Dec 2022 20:30:22 +0100 Message-Id: <20221201193025.1584365-3-Naresh.Solanki@9elements.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221201193025.1584365-1-Naresh.Solanki@9elements.com> References: <20221201193025.1584365-1-Naresh.Solanki@9elements.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Notify hwmon events using the pmbus irq handler. Signed-off-by: Naresh Solanki --- drivers/hwmon/pmbus/pmbus_core.c | 46 +++++++++++++++++++++++++++++--- 1 file changed, 43 insertions(+), 3 deletions(-) diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index 6a3a3fd59b8e..ad3c0cc884a4 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -2782,7 +2782,35 @@ static const struct pmbus_regulator_status_category pmbus_regulator_flag_map[] = }, }; -static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned int *flags) +#define to_dev_attr(_dev_attr) \ + container_of(_dev_attr, struct device_attribute, attr) + +static void pmbus_notify(struct pmbus_data *data, int page, int reg, int flags) +{ + int i; + + for (i = 0; i < data->num_attributes; i++) { + struct device_attribute *da = to_dev_attr(data->group.attrs[i]); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + int index = attr->index; + u16 smask = pb_index_to_mask(index); + u8 spage = pb_index_to_page(index); + u16 sreg = pb_index_to_reg(index); + + if (reg == sreg && page == spage && (smask & flags)) { + dev_dbg(data->dev, "sysfs notify: %s", da->attr.name); + sysfs_notify(&data->dev->kobj, NULL, da->attr.name); + kobject_uevent(&data->dev->kobj, KOBJ_CHANGE); + flags &= ~smask; + } + + if (!flags) + break; + } +} + +static int pmbus_regulator_get_flags(struct regulator_dev *rdev, unsigned int *error, + bool notify) { int i, status; const struct pmbus_regulator_status_category *cat; @@ -2812,6 +2840,9 @@ static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned if (status & bit->pflag) *flags |= bit->rflag; } + + if (notify && status) + pmbus_notify(data, page, cat->reg, status); } /* @@ -2856,6 +2887,11 @@ static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned return 0; } +static int pmbus_regulator_get_error_flags(struct regulator_dev *rdev, unsigned int *flags) +{ + return pmbus_regulator_get_flags(rdev, flags, false); +} + static int pmbus_regulator_get_status(struct regulator_dev *rdev) { struct device *dev = rdev_get_dev(rdev); @@ -3087,7 +3123,7 @@ static irqreturn_t pmbus_fault_handler(int irq, void *pdata) { struct pmbus_data *data = pdata; struct i2c_client *client = to_i2c_client(data->dev); - int i, status; + int i, ret = IRQ_NONE, status; u8 page; for (i = 0; i < data->info->num_regulators; i++) { @@ -3095,6 +3131,10 @@ static irqreturn_t pmbus_fault_handler(int irq, void *pdata) if (!data->rdevs[i]) continue; + ret = pmbus_regulator_get_flags(data->rdevs[i], &status, true); + if (ret) + return ret; + page = rdev_get_id(data->rdevs[i]); mutex_lock(&data->update_lock); status = pmbus_read_status_word(client, page); @@ -3109,7 +3149,7 @@ static irqreturn_t pmbus_fault_handler(int irq, void *pdata) mutex_unlock(&data->update_lock); } - return IRQ_HANDLED; + return ret; } static int pmbus_irq_setup(struct i2c_client *client, struct pmbus_data *data)