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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Lee Jones Cc: Huacai Chen , devicetree@vger.kernel.org, linux-pm@vger.kernel.org, mfd@lists.linux.dev, Binbin Zhou Subject: [PATCH v4 0/5] thermal: loongson2: Add support for Loongson-2K0300 SoC Date: Tue, 4 Aug 2026 20:40:12 +0800 Message-ID: X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:qMiowJCxq8S33XFqkm8jAA--.9345S2 X-CM-SenderInfo: p2kr3uplqex0o6or00hjvr0hdfq/1tbiAQEJCGpxaFEngQAAsF X-Coremail-Antispam: 1Uk129KBj93XoWxJF4fKw1fXr4kur45tryUXFc_yoW5GF4fpa y5u3sxCr1DGF4UJws3JrWxZF4Yvrn5tFZxXFs7Kwn5uwn8KFyay3y8ta15ZryxCF45WFW2 vryvkrWkCF4DuFXCm3ZEXasCq-sJn29KB7ZKAUJUUUU7529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUU9Yb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1ln4kS14v26r1Y6r17M2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12 xvs2x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r12 6r1DMcIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64 vIr41l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxYO2xFxVAFwI0_ Jrv_JF1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1V AY17CE14v26r4a6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAI cVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42 IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIev Ja73UjIFyTuYvjxUc0eHDUUUU Hi all: This patch series adds thermal zone support for the Loongson-2K0300 SoC. The Loongson-2K0300's thermal sensor is generally compatible with the existing Loongson-2K series, but it features several key differences: 1. It has an independent CPU ID register for reading chip version information. 2. The raw temperature output field has been extended from 8 bits to 11 bits. 3. The temperature calculation formula has been updated to incorporate a correction factor based on the version information. To ensure robustness on older hardware revisions, a fallback mechanism is included: if the calculated temperature falls outside the valid range (-55 TO 125), the driver falls back to a simpler calculation and prints a warning. The patches have been validated on the Loongson-2K0300 development board. Thanks. Binbin ========= V4: - Rebase on linux-mfd/for-mfd-next; Patch (3/5): - Remove the `compatible` adding to the `select` node. Link to V3: https://lore.kernel.org/all/cover.1785480242.git.zhoubinbin@loongson.cn/ V3: Patch (2/5): - New patch for moving thermal_ops to chip_data; Patch (3/5): - Correct spelling errors; Patch (4/5): - Add Acked-by from Conor, thanks; Patch (5/5): - Keep loongson2_thermal_data->chip_data as const, and use data->flags as the private data. - Renmae LOONGSON2_THSENS_OUT_10B_MASK -> LOONGSON2_THSENS_OUT_11B_MASK; Link to V2: https://lore.kernel.org/all/cover.1784619512.git.zhoubinbin@loongson.cn/ V2: Patch (1/4): - New patch form Sashiko; Patch (2/4): - New patch for adding chipid syscon compatible; Patch (3/4): - Use `loongson,chipid` phandle replace reg property; Patch (3/4): - Refact `calib_offset` calculate routing; - Add LS2K0300_OLD_FUSE_FLAG flag. Link to V1: https://lore.kernel.org/all/cover.1783670011.git.zhoubinbin@loongson.cn/ Binbin Zhou (5): thermal/drivers/loongson2: Correct thermal sensor registration loop thermal/drivers/loongson2: Move thermal_ops to chip_data for SoC scalability dt-bindings: mfd: syscon: Allow syscon compatible for Loongson-2K0300 chip id dt-bindings: thermal: loongson,ls2k-thermal: Add compatible for Loongson-2K0300 thermal/drivers/loongson2: Add support for Loongson-2K0300 .../devicetree/bindings/mfd/syscon.yaml | 1 + .../thermal/loongson,ls2k-thermal.yaml | 73 +++++++++--- drivers/thermal/loongson2_thermal.c | 110 ++++++++++++++++-- 3 files changed, 156 insertions(+), 28 deletions(-) base-commit: b1eb3de64d02cec71b419b9918d1697797fa156d -- 2.52.0