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Mon, 24 Aug 2026 03:02:44 +0000 From: Changhuang Liang To: Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, Changhuang Liang Subject: [PATCH v3 0/2] Add JHB100 Fan-Tach support Date: Sun, 23 Aug 2026 20:02:32 -0700 Message-Id: <20260824030234.9321-1-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: NT0PR01CA0035.CHNPR01.prod.partner.outlook.cn (2406:e500:c510:c::12) To ZQ4PR01MB1202.CHNPR01.prod.partner.outlook.cn (2406:e500:c550:17::6) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: ZQ4PR01MB1202:EE_|ZQ4PR01MB1201:EE_ X-MS-Office365-Filtering-Correlation-Id: 04815e76-f839-4acd-9759-08df018c2b4a X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|23010399003|52116014|376014|56012099006|10067099003|18002099003|38350700014; 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The series has been tested on the EVB1 board. Change since v2: PATCH 2: - Fix typo in commit message: than ==> then - Remove struct device *dev and struct mutex lock from struct starfive_fan_tach_data. - Change return type of starfive_fan_tach_get_ch_en() to bool. - Simplify the condition check in starfive_fan_read() by removing the unnecessary intermediate ret variable assignment when checking the tachometer channel enable status. - Return an error when tach_ch >= STARFIVE_FAN_TACH_CH. - Add a description that accessing the fan status can be time-consuming in certain scenarios in starfive-fan-tach.rst. v2: https://lore.kernel.org/all/20260819091601.41077-1-changhuang.liang@starfivetech.com/ v1: https://lore.kernel.org/all/20260428082337.743546-1-changhuang.liang@starfivetech.com/ Changhuang Liang (2): dt-bindings: hwmon: Add starfive,jhb100-fan-tach hwmon: (starfive-fan-tach) Add fan tach driver for StarFive JHB100 .../hwmon/starfive,jhb100-fan-tach.yaml | 93 +++ Documentation/hwmon/index.rst | 1 + Documentation/hwmon/starfive-fan-tach.rst | 38 ++ MAINTAINERS | 8 + drivers/hwmon/Kconfig | 14 + drivers/hwmon/Makefile | 1 + drivers/hwmon/starfive-fan-tach.c | 540 ++++++++++++++++++ 7 files changed, 695 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/starfive,jhb100-fan-tach.yaml create mode 100644 Documentation/hwmon/starfive-fan-tach.rst create mode 100644 drivers/hwmon/starfive-fan-tach.c -- 2.25.1