From patchwork Tue Mar 7 13:37:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 660904 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 ED525C6FD1A for ; Tue, 7 Mar 2023 13:38:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230344AbjCGNiC (ORCPT ); Tue, 7 Mar 2023 08:38:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229833AbjCGNiB (ORCPT ); Tue, 7 Mar 2023 08:38:01 -0500 Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC7B6E05D for ; Tue, 7 Mar 2023 05:37:58 -0800 (PST) Received: by mail-wr1-x42c.google.com with SMTP id q16so12162503wrw.2 for ; Tue, 07 Mar 2023 05:37:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1678196277; 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=nLUnfNdm2yVAS1wkgyhep1P3VK/E8L4MHqepWzvtV2A=; b=qKIJrWS9HlseEtztfIrN6k80cK8FLhU5mOoTqsxRKIDDswm6hrdb/9FJXWSrtgL4Pm ZymY4A+L/FR0vKcMRpxJnpy3ko7ZviX2L3xB7TSfO4MkZ5K4R5T7I6j2QJO/IV2kfHfa xRqWqAfhDP64AdJkXBlw4aRFPruwVqGBE9ynzgRIdvtK8gIYV3EbAI7UtfctX4+wYbIN bMGDMVGkXtrCoEnJcQJBTZ58XDpIflI+VbB0IaYvqcKCQ/6UeWX4Am5pQ3QL1N23Kf+T qNq7IV3DjqUzZ5e0CsHVPgb0IYpSE/rwbzlDfi4qNQ1X4w8H8QslY8Sjm5y/QHleuooc 8giw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678196277; 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=nLUnfNdm2yVAS1wkgyhep1P3VK/E8L4MHqepWzvtV2A=; b=pF2WuAwcQL9vq0/aF6TXO//bpJJju/VbKP7WmDRjwuOh5TWrmBx/2XX2OdMltYMUne 6AEzadAUZG0jvhH26ynzkGgfC3vVh2S0R1cjEWwcuKmNWzBbc4Vk0kYbbZKNw46qxYDx uwUlkb34sUYYYJIFbvpkzEmw/9MYyCN8DW/cgBdzv1Cz4anTGHlX4cWZ1jGntqnIHQKG 06YQ5FvMN4H9X+BOVt7ONveR4UtQ7BWIre3krgu/i8J5VcuNAYAbdyBJDfS8spBbG6aI 9AqbzO96I3cn8f9LmDVxNUIbnP5ouuoy8WsCOILlCEpafZ2l5zvhka2fGRD4vnPIklFc ZAxg== X-Gm-Message-State: AO0yUKWfxsgC8Z0Vq2y+mHSylDpLRdu3Bxj9UU0ciHIE/u1CQi7ENyCW 7QjggStjJQoKwPfZHRVfWXCoSA4Bt6X4WC6SrZc= X-Google-Smtp-Source: AK7set+5bl0ivxq0qjIDEGdtaLKiDFJabUVOomnEhZz+7wzT8OijXNC2nxhhd/MkVveZgS5ZEKTF/w== X-Received: by 2002:adf:e948:0:b0:2c7:478:d1d9 with SMTP id m8-20020adfe948000000b002c70478d1d9mr9055975wrn.33.1678196277140; Tue, 07 Mar 2023 05:37:57 -0800 (PST) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:5ab9:1ac6:870d:35c]) by smtp.gmail.com with ESMTPSA id v5-20020a5d43c5000000b002c55de1c72bsm12311477wrr.62.2023.03.07.05.37.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Mar 2023 05:37:56 -0800 (PST) From: Daniel Lezcano To: daniel.lezcano@linaro.org, rafael@kernel.org Cc: rui.zhang@intel.com, amitk@kernel.org, Sujith Thomas , linux-pm@vger.kernel.org (open list:INTEL MENLOW THERMAL DRIVER), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v1 03/11] thermal/drivers/intel_menlow: Remove add_one_attribute Date: Tue, 7 Mar 2023 14:37:27 +0100 Message-Id: <20230307133735.90772-4-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230307133735.90772-1-daniel.lezcano@linaro.org> References: <20230307133735.90772-1-daniel.lezcano@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The driver hooks the thermal framework sysfs to add some driver specific information. A debatable approach as that may belong the device sysfs directory, not the thermal zone directory. As the driver is accessing the thermal internals, we should provide at least an API to the thermal framework to add an attribute to the existing sysfs thermal zone entry. Before doing that and given the age of the driver (2008) may be it is worth to double check if these attributes are really needed. So my first proposal is to remove them if that does not hurt. Signed-off-by: Daniel Lezcano --- drivers/thermal/intel/intel_menlow.c | 193 --------------------------- 1 file changed, 193 deletions(-) diff --git a/drivers/thermal/intel/intel_menlow.c b/drivers/thermal/intel/intel_menlow.c index 5a6ad0552311..5a9738a93083 100644 --- a/drivers/thermal/intel/intel_menlow.c +++ b/drivers/thermal/intel/intel_menlow.c @@ -230,174 +230,8 @@ struct intel_menlow_attribute { static LIST_HEAD(intel_menlow_attr_list); static DEFINE_MUTEX(intel_menlow_attr_lock); -/* - * sensor_get_auxtrip - get the current auxtrip value from sensor - * @handle: Object handle - * @index : GET_AUX1/GET_AUX0 - * @value : The address will be fill by the value - */ -static int sensor_get_auxtrip(acpi_handle handle, int index, - unsigned long long *value) -{ - acpi_status status; - - if ((index != 0 && index != 1) || !value) - return -EINVAL; - - status = acpi_evaluate_integer(handle, index ? GET_AUX1 : GET_AUX0, - NULL, value); - if (ACPI_FAILURE(status)) - return -EIO; - - return 0; -} - -/* - * sensor_set_auxtrip - set the new auxtrip value to sensor - * @handle: Object handle - * @index : GET_AUX1/GET_AUX0 - * @value : The value will be set - */ -static int sensor_set_auxtrip(acpi_handle handle, int index, int value) -{ - acpi_status status; - union acpi_object arg = { - ACPI_TYPE_INTEGER - }; - struct acpi_object_list args = { - 1, &arg - }; - unsigned long long temp; - - if (index != 0 && index != 1) - return -EINVAL; - - status = acpi_evaluate_integer(handle, index ? GET_AUX0 : GET_AUX1, - NULL, &temp); - if (ACPI_FAILURE(status)) - return -EIO; - if ((index && value < temp) || (!index && value > temp)) - return -EINVAL; - - arg.integer.value = value; - status = acpi_evaluate_integer(handle, index ? SET_AUX1 : SET_AUX0, - &args, &temp); - if (ACPI_FAILURE(status)) - return -EIO; - - /* do we need to check the return value of SAX0/SAX1 ? */ - - return 0; -} - -#define to_intel_menlow_attr(_attr) \ - container_of(_attr, struct intel_menlow_attribute, attr) - -static ssize_t aux_show(struct device *dev, struct device_attribute *dev_attr, - char *buf, int idx) -{ - struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr); - unsigned long long value; - int result; - - result = sensor_get_auxtrip(attr->handle, idx, &value); - if (result) - return result; - - return sprintf(buf, "%lu", deci_kelvin_to_celsius(value)); -} - -static ssize_t aux0_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) -{ - return aux_show(dev, dev_attr, buf, 0); -} - -static ssize_t aux1_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) -{ - return aux_show(dev, dev_attr, buf, 1); -} - -static ssize_t aux_store(struct device *dev, struct device_attribute *dev_attr, - const char *buf, size_t count, int idx) -{ - struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr); - int value; - int result; - - /*Sanity check; should be a positive integer */ - if (!sscanf(buf, "%d", &value)) - return -EINVAL; - - if (value < 0) - return -EINVAL; - - result = sensor_set_auxtrip(attr->handle, idx, - celsius_to_deci_kelvin(value)); - return result ? result : count; -} - -static ssize_t aux0_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) -{ - return aux_store(dev, dev_attr, buf, count, 0); -} - -static ssize_t aux1_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) -{ - return aux_store(dev, dev_attr, buf, count, 1); -} - /* BIOS can enable/disable the thermal user application in dabney platform */ #define BIOS_ENABLED "\\_TZ.GSTS" -static ssize_t bios_enabled_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - acpi_status status; - unsigned long long bios_enabled; - - status = acpi_evaluate_integer(NULL, BIOS_ENABLED, NULL, &bios_enabled); - if (ACPI_FAILURE(status)) - return -ENODEV; - - return sprintf(buf, "%s\n", bios_enabled ? "enabled" : "disabled"); -} - -static int intel_menlow_add_one_attribute(char *name, umode_t mode, void *show, - void *store, struct device *dev, - acpi_handle handle) -{ - struct intel_menlow_attribute *attr; - int result; - - attr = kzalloc(sizeof(struct intel_menlow_attribute), GFP_KERNEL); - if (!attr) - return -ENOMEM; - - sysfs_attr_init(&attr->attr.attr); /* That is consistent naming :D */ - attr->attr.attr.name = name; - attr->attr.attr.mode = mode; - attr->attr.show = show; - attr->attr.store = store; - attr->device = dev; - attr->handle = handle; - - result = device_create_file(dev, &attr->attr); - if (result) { - kfree(attr); - return result; - } - - mutex_lock(&intel_menlow_attr_lock); - list_add_tail(&attr->node, &intel_menlow_attr_list); - mutex_unlock(&intel_menlow_attr_lock); - - return 0; -} static acpi_status intel_menlow_register_sensor(acpi_handle handle, u32 lvl, void *context, void **rv) @@ -420,12 +254,6 @@ static acpi_status intel_menlow_register_sensor(acpi_handle handle, u32 lvl, if (ACPI_FAILURE(status)) return (status == AE_NOT_FOUND) ? AE_OK : status; - result = intel_menlow_add_one_attribute("aux0", 0644, - aux0_show, aux0_store, - &thermal->device, handle); - if (result) - return AE_ERROR; - status = acpi_get_handle(handle, GET_AUX1, &dummy); if (ACPI_FAILURE(status)) goto aux1_not_found; @@ -434,27 +262,6 @@ static acpi_status intel_menlow_register_sensor(acpi_handle handle, u32 lvl, if (ACPI_FAILURE(status)) goto aux1_not_found; - result = intel_menlow_add_one_attribute("aux1", 0644, - aux1_show, aux1_store, - &thermal->device, handle); - if (result) { - intel_menlow_unregister_sensor(); - return AE_ERROR; - } - - /* - * create the "dabney_enabled" attribute which means the user app - * should be loaded or not - */ - - result = intel_menlow_add_one_attribute("bios_enabled", 0444, - bios_enabled_show, NULL, - &thermal->device, handle); - if (result) { - intel_menlow_unregister_sensor(); - return AE_ERROR; - } - return AE_OK; aux1_not_found: