From patchwork Wed Dec 9 07:59:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Troy Lee X-Patchwork-Id: 1413251 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CrV5k5C9sz9sWL for ; Wed, 9 Dec 2020 19:07:38 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CrV5k0XRFzDqJC for ; Wed, 9 Dec 2020 19:07:38 +1100 (AEDT) X-Original-To: openbmc@lists.ozlabs.org Delivered-To: openbmc@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=fail (SPF fail - not authorized) smtp.mailfrom=aspeedtech.com (client-ip=211.20.114.71; helo=twspam01.aspeedtech.com; envelope-from=troy_lee@aspeedtech.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Received: from twspam01.aspeedtech.com (twspam01.aspeedtech.com [211.20.114.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4CrTy95rsvzDqjb; Wed, 9 Dec 2020 19:01:03 +1100 (AEDT) Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 0B97uYUO009083; Wed, 9 Dec 2020 15:56:34 +0800 (GMT-8) (envelope-from troy_lee@aspeedtech.com) Received: from TroyLee-PC.localdomain (192.168.100.253) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 9 Dec 2020 15:59:30 +0800 From: Troy Lee To: , Jean Delvare , "Guenter Roeck" , Rob Herring , Joel Stanley , Andrew Jeffery , Jonathan Corbet , Philipp Zabel , "open list:HARDWARE MONITORING" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "moderated list:ARM/ASPEED MACHINE SUPPORT" , "moderated list:ARM/ASPEED MACHINE SUPPORT" , open list , "open list:DOCUMENTATION" Subject: [PATCH 3/4] hwmon: Add Aspeed AST2600 support Date: Wed, 9 Dec 2020 15:59:19 +0800 Message-ID: <20201209075921.26689-4-troy_lee@aspeedtech.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201209075921.26689-1-troy_lee@aspeedtech.com> References: <20201209075921.26689-1-troy_lee@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.100.253] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 0B97uYUO009083 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: billy_tsai@aspeedtech.com, leetroy@gmail.com, troy_lee@aspeedtech.com, ryan_chen@aspeedtech.com, chiawei_wang@aspeedtech.com Errors-To: openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "openbmc" Updating index.rst and adding aspeed_pwm_tachometer.rst to address the driver. Signed-off-by: Troy Lee --- Documentation/hwmon/aspeed_pwm_tachometer.rst | 24 +++++++++++++++++++ Documentation/hwmon/index.rst | 1 + 2 files changed, 25 insertions(+) create mode 100644 Documentation/hwmon/aspeed_pwm_tachometer.rst diff --git a/Documentation/hwmon/aspeed_pwm_tachometer.rst b/Documentation/hwmon/aspeed_pwm_tachometer.rst new file mode 100644 index 000000000000..301448002e6e --- /dev/null +++ b/Documentation/hwmon/aspeed_pwm_tachometer.rst @@ -0,0 +1,24 @@ +Kernel driver aspeed_pwm_tachometer +=================================== + +Supported chips: + ASPEED AST2600 + +Authors: + Ryan Chen + +Description: +------------ +This driver implements support for ASPEED AST2600 PWM and Fan Tacho +controller. The PWM controller supports upto 16 PWM outputs. The Fan tacho +controller supports up to 16 tachometer inputs. + +The driver provides the following sensor accesses in sysfs: + +=============== ======= ===================================================== +fanX_input ro provide current fan rotation value in RPM as reported + by the fan to the device. + +pwmX rw get or set PWM fan control value. This is an integer + value between 0(off) and 255(full speed). +=============== ======= ===================================================== diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 89e1a824021f..26d277c1d211 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -43,6 +43,7 @@ Hardware Monitoring Kernel Drivers asb100 asc7621 aspeed-pwm-tacho + aspeed_pwm_tachometer bcm54140 bel-pfe bt1-pvt