From patchwork Mon May 17 06:14:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Pandruvada X-Patchwork-Id: 440419 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D152DC433ED for ; Mon, 17 May 2021 06:22:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AC6C361206 for ; Mon, 17 May 2021 06:22:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235068AbhEQGYK (ORCPT ); Mon, 17 May 2021 02:24:10 -0400 Received: from mga11.intel.com ([192.55.52.93]:34734 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235059AbhEQGYK (ORCPT ); Mon, 17 May 2021 02:24:10 -0400 IronPort-SDR: 7qJUwtA9Uaz5RAzBb2aImJUBNLXn44+KHWVi5VGY2sT7xHWlNhtGN3xmRpZ94sZOEw26+gXrqs 0gdnHx0GLIwA== X-IronPort-AV: E=McAfee;i="6200,9189,9986"; a="197306273" X-IronPort-AV: E=Sophos;i="5.82,306,1613462400"; d="scan'208";a="197306273" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 May 2021 23:22:54 -0700 IronPort-SDR: S/3PXjdjnMfHkaMCBcTuZpdrVDUa60Qwuw+4IH4WQBnCWf4UdfvFW/Ppx79wW4Z7aZOLsn3yhF mzzIZbTTZznQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,306,1613462400"; d="scan'208";a="393388427" Received: from spandruv-desk.jf.intel.com ([10.54.75.21]) by orsmga003.jf.intel.com with ESMTP; 16 May 2021 23:22:53 -0700 From: Srinivas Pandruvada To: daniel.lezcano@linaro.org, rui.zhang@intel.com, amitk@kernel.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Srinivas Pandruvada Subject: [PATCH 2/2] thermal: int340x: processor_thermal: Export additional attributes Date: Sun, 16 May 2021 23:14:41 -0700 Message-Id: <20210517061441.1921901-3-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210517061441.1921901-1-srinivas.pandruvada@linux.intel.com> References: <20210517061441.1921901-1-srinivas.pandruvada@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Export additional attributes: ddr_data_rate (RO) : Show current DDR (Double Data Rate) data rate. rfi_restriction (RW) : Show or set current state for RFI (Radio Frequency Interference) protection. These attributes use mailbox commands to get/set information. Here command codes are: 0x0007: Read RFI restriction 0x0107: Read DDR data rate 0x0008: Write RFI restriction Signed-off-by: Srinivas Pandruvada --- .../int340x_thermal/processor_thermal_rfim.c | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c index aef993a813e2..2b8a3235d518 100644 --- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c +++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c @@ -190,6 +190,59 @@ static DEVICE_ATTR_RO(ddr_data_rate_point_2); static DEVICE_ATTR_RO(ddr_data_rate_point_3); static DEVICE_ATTR_RW(rfi_disable); +static ssize_t rfi_restriction_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + u16 cmd_id = 0x0008; + u32 cmd_resp; + u32 input; + int ret; + + ret = kstrtou32(buf, 10, &input); + if (ret) + return ret; + + ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, input, &cmd_resp); + if (ret) + return ret; + + return count; +} + +static ssize_t rfi_restriction_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u16 cmd_id = 0x0007; + u32 cmd_resp; + int ret; + + ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, 0, &cmd_resp); + if (ret) + return ret; + + return sprintf(buf, "%u\n", cmd_resp); +} + +static ssize_t ddr_data_rate_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u16 cmd_id = 0x0107; + u32 cmd_resp; + int ret; + + ret = processor_thermal_send_mbox_cmd(to_pci_dev(dev), cmd_id, 0, &cmd_resp); + if (ret) + return ret; + + return sprintf(buf, "%u\n", cmd_resp); +} + +static DEVICE_ATTR_RW(rfi_restriction); +static DEVICE_ATTR_RO(ddr_data_rate); + static struct attribute *dvfs_attrs[] = { &dev_attr_rfi_restriction_run_busy.attr, &dev_attr_rfi_restriction_err_code.attr, @@ -199,6 +252,8 @@ static struct attribute *dvfs_attrs[] = { &dev_attr_ddr_data_rate_point_2.attr, &dev_attr_ddr_data_rate_point_3.attr, &dev_attr_rfi_disable.attr, + &dev_attr_ddr_data_rate.attr, + &dev_attr_rfi_restriction.attr, NULL };