diff options
| author | Andrew Onyshchuk <andryk.rv@gmail.com> | 2026-08-06 08:44:17 -0700 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-08-18 17:30:44 +0300 |
| commit | 8d840dad456f88374d8a3b03851452a280d6ee50 (patch) | |
| tree | 06afebe74e2b6adf355d469cd59a5fe13c1c768c /drivers/platform/x86 | |
| parent | 0b30e6e583b2988864ffa7aeb2905bc2d0c7d575 (diff) | |
platform/x86: thinkpad_acpi: Fix fan speed reporting on Edge E330
The ThinkPad Edge E330 with H3 firmware uses the non-standard EC fan
register block. Without a matching quirk, thinkpad_acpi reads the legacy
tachometer registers and reports 0 RPM.
Add the H3 BIOS family to TPACPI_FAN_NS so the driver reads the fan
period from EC register 0x95 using the existing non-standard reporting
path.
Tested on a ThinkPad Edge E330 with BIOS H3ET77WW and EC H3EC35WW.
Signed-off-by: Andrew Onyshchuk <andryk.rv@gmail.com>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://patch.msgid.link/20260806154417.618575-1-andryk.rv@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/lenovo/thinkpad_acpi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/platform/x86/lenovo/thinkpad_acpi.c b/drivers/platform/x86/lenovo/thinkpad_acpi.c index efc7784f11d1..60a2312f7d6b 100644 --- a/drivers/platform/x86/lenovo/thinkpad_acpi.c +++ b/drivers/platform/x86/lenovo/thinkpad_acpi.c @@ -8845,6 +8845,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { TPACPI_Q_LNV3('R', '0', 'T', TPACPI_FAN_NS), /* 11e Gen5 GL */ TPACPI_Q_LNV3('R', '1', 'D', TPACPI_FAN_NS), /* 11e Gen5 GL-R */ TPACPI_Q_LNV3('R', '0', 'V', TPACPI_FAN_NS), /* 11e Gen5 KL-Y */ + TPACPI_Q_LNV('H', '3', TPACPI_FAN_NS), /* Edge E330 */ TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd gen) */ TPACPI_Q_LNV3('R', '0', 'Q', TPACPI_FAN_DECRPM),/* L480 */ TPACPI_Q_LNV('8', 'F', TPACPI_FAN_TPR), /* ThinkPad x120e */ |