[PATCH v4 0/4] platform/x86: bitland-mifs-wmi: Xiaomi Book Pro 14 support

From: Chris Taraszka

Date: Fri Nov 06 2026 - 06:58:58 EST


Four patches on top of Mingyou Chen's v15 "Merge redmi-wmi into
bitland-mifs-wmi" [1] for the Xiaomi Book Pro 14 (TM2424).

The firmware passes SystemPerMode to Intel DTT, and the DTT tables in
its data vault name each mode and set its PL1 per power source.
Low-power, balanced and performance map to 0x02, 0x09 and 0x04. On
battery the firmware's performance mode is 0x03, so patch 2 lets a
profile use a separate value on battery, re-applied when the power
source changes, and patch 3 adds the quirk. Patch 1 keeps a failed
profile read from aborting system suspend, and patch 4 makes Fn+K
cycle the platform profile.

Changes since v3 [2]:
- Move the quirk after the battery support, so 0x03 is its battery
entry from the start (Mingyou)
- Move the suspend fix to the front, as it stands on its own
- No code change at the end of the series
- Fn+K still only handles 0x28. Event 0x16 reports a mode change on
TM2135 [3] and TM2424 alike, so it stays a notification

Changes since v2 [4]:
- New mode map from the firmware's DTT tables (Kento)
- Drop Mingyou's Reviewed-by from the quirk patch, as the map changed
- New battery support patch
- Fold in the Fn+K patch

[1] https://lore.kernel.org/all/20261028112742.674847-1-qby140326@xxxxxxxxx/
[2] https://lore.kernel.org/all/20261101161814.1325847-1-chris@xxxxxxxxx/
[3] https://lore.kernel.org/all/BelDdF5woNEBX6dZ3_zJDEbVkifs1pdxEjtQ1yC-aKyZahijFJCllxm0l_SqZ5Hsj61D8wfJNa7uDSuNKmyyxo2S0tZp9QS5yaafeZUxvxE=@proton.me/
[4] https://lore.kernel.org/all/20261025195456.43414-1-chris@xxxxxxxxx/

Chris Taraszka (4):
platform/x86: bitland-mifs-wmi: Don't fail suspend or resume on
profile errors
platform/x86: bitland-mifs-wmi: Support a separate profile value on
battery
platform/x86: bitland-mifs-wmi: Add Xiaomi Book Pro 14 quirk
platform/x86: bitland-mifs-wmi: Cycle the platform profile on Fn+K

drivers/platform/x86/bitland-mifs-wmi.c | 183 +++++++++++++++++++++---
1 file changed, 163 insertions(+), 20 deletions(-)


base-commit: c339f4010dea8b0d754f84ace70cd1b089878ef8
prerequisite-patch-id: 99b10cd2b70d630ab65d8a8bb02c1d4bf89b1a63
prerequisite-patch-id: 27db041f827872b8be142c310a14c79962154bd5
prerequisite-patch-id: 74fc3298fa3dceb2224dfc3d2ae4cc6d4be61c01
prerequisite-patch-id: 254b8455d8a7f56b730e842207d91bd6904a50ce
prerequisite-patch-id: 9708c81da6b4ed6c2d47eb927efcd64ce4ed2ecf
prerequisite-patch-id: 2fe8c043993034f1a2cde98b1b2e299987d5ac7f
--
2.56.0