Add baseline support for Legion 9i Gen 10 (83EY, BIOS RZCN)#417
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long-island wants to merge 1 commit intojohnfanv2:mainfrom
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Add baseline support for Legion 9i Gen 10 (83EY, BIOS RZCN)#417long-island wants to merge 1 commit intojohnfanv2:mainfrom
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Add model configuration and DMI match for the Lenovo Legion 9i Gen 10 (product name 83EY, BIOS version RZCN*). This model uses ACPI-based fan speed reporting (already in RPM), WMI3 for temperatures, and WMI for power mode control. It has four fans and does not support fan curves, fan full speed toggle, or IC/OC overclocking controls. Changes: - Add model_config fields for per-model feature gating: skip_ic_temp, skip_oc_controls, acpi_fanspeed_is_rpm, fan_target_is_duty, has_four_fans, skip_ylogo_light, skip_ioport_light - Add ec_register_offsets_rzcn with corrected fan target registers: EXT_FAN1_TARGET_RPM = 0xC5A0 and EXT_FAN2_TARGET_RPM = 0xC5A1 (duty-cycle bytes confirmed via EMOR dump and live hardware read). The v0 offsets 0xC600/0xC601 map to CPU PL1/PL2 power limits on this model, not fan targets. - Add model_rzcn configuration block (EC ID 0x5263, EMOR at 0xFE0B0400) - Add DMI match entry for RZCN BIOS version - Add ACPI fan 3/4 support (FA3S, FA4S) with sensor IDs and hwmon attrs - Fix fan RPM reporting: skip x100 multiplier when acpi_fanspeed_is_rpm - Fix fan_target reporting: scale duty-cycle bytes by 100 when fan_target_is_duty is set, independent of acpi_fanspeed_is_rpm - Fix ACPI fan speed error return (-EINVAL instead of -EEXIST) - Add sysfs visibility gating for fan_fullspeed and OC control attrs - Add hwmon visibility gating for IC temperature and fan 3/4 sensors - Gate Y-Logo and IO-Port LED init on per-model config flags Tested on: DMI product: 83EY (Legion 9 18IAX10) BIOS: RZCN32WW EC ID: 0x5263 Hwmon sensors (idle): temp1 (CPU Temperature) = 51000 temp2 (GPU Temperature) = 43000 fan1_input = 1707 RPM, fan1_target = 1700 RPM (~17% duty x100) fan2_input = 1736 RPM, fan2_target = 1700 RPM (~17% duty x100) fan3_input = 0 RPM (activates above ~77 deg C) fan4_input = 0 RPM (activates above ~77 deg C) Hwmon sensors (stress, steady-state peaks): fan1_input = 4162 RPM, fan1_target ~= 4100 RPM (~41% duty x100) fan2_input = 3843 RPM, fan2_target ~= 3800 RPM (~38% duty x100) fan3_input = 5827 RPM fan4_input = 5940 RPM Hidden sysfs attrs (non-functional on this model): fan_fullspeed, cpu_oc, gpu_oc, cpu_shortterm_powerlimit, cpu_longterm_powerlimit, cpu_peak_powerlimit, cpu_default_powerlimit, cpu_apu_sppt_powerlimit, cpu_cross_loading_powerlimit, gpu_ppab_powerlimit, gpu_ctgp_powerlimit, gpu_ctgp2_powerlimit, gpu_default_ppab_ctrgp_powerlimit, gpu_temperature_limit, gpu_boost_clock Hidden hwmon sensors (non-functional on this model): temp3 (IC Temperature) Signed-off-by: JawaharBalaji Thirumalaisamy <jab@hikersnotes.com>
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Summary
RZCN*)Key changes
ec_register_offsets_rzcn— new register map with corrected fan-target addresses:EXT_FAN1_TARGET_RPM = 0xC5A0,EXT_FAN2_TARGET_RPM = 0xC5A1(duty-cycle bytes, confirmed via EMOR dump and live hardware). The v0 offsets0xC600/0xC601map to CPU PL1/PL2 power limits on this model, not fan targets.fan_target_is_dutyflag — scales duty-cycle bytes (0–100) by 100 to approximate RPM, independent ofacpi_fanspeed_is_rpmskip_ic_temp,skip_oc_controlsflags — hide non-functional hwmon and sysfs attributeshas_four_fansflag — exposesfan3_input/fan4_inputvia ACPI methods FA3S/FA4Sskip_ylogo_light,skip_ioport_lightflags — skip LED init paths that fail on RZCN-EINVALinstead of-EEXIST)fan_fullspeedand OC control attributesTest results
Hardware: Legion 9 18IAX10 (DMI 83EY), BIOS RZCN32WW, EC 0x5263, kernel 6.19.9-arch1-1
Idle:
Stress (steady-state peaks):
Hidden (non-functional on this model):
fan_fullspeed,cpu_oc,gpu_oc, all*_powerlimit,gpu_boost_clock,gpu_temperature_limittemp3(IC Temperature)Impact on other models
All new
model_configflags default tofalse/0. No existing model configs are modified. The split oflegion_hwmon_is_visibleinto sensor/fancurve callbacks preserves identical behavior for all non-RZCN models.🤖 Generated with Claude Code