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Carlo Szelinsky
6ecf15d63a
Add a temperature/fan sensor (hwmon) driver for the Hasivo / Horaco management MCU as a second child of the hasivo MCU MFD (alongside the watchdog). It exposes the CPU and system temperatures and a 3-state fan control (auto / force-on / force-off), read/written through the parent's shared syscon regmap. The register protocol was reverse-engineered from the stock 'imi' firmware and verified on hardware. The fan-status register (0xFB) reflects the MCU's effective drive state, not actual rotation (a blocked fan still reads force-on), so no fanN_alarm is exposed. pwm1 echoes the commanded state so a write reads back consistently, and falls back to the live drive state in automatic mode. The register map is shared across boards. Signed-off-by: Carlo Szelinsky <github@szelinsky.de> Link: https://github.com/openwrt/openwrt/pull/23762 Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>