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| author | Harinn <prinn.dev@pm.me> | 2026-10-04 17:59:53 +0700 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@kernel.org> | 2026-10-06 15:39:33 +0200 |
| commit | 249fa862deccee0de8071e61fe9946f2fdeb3a8e (patch) | |
| tree | 5f867550bcd21ce4b43602b2b133f6d6282de1ea | |
| parent | fa1eb3af12fa71964ff965726bd65c69a76d1de7 (diff) | |
| download | linux-next-249fa862deccee0de8071e61fe9946f2fdeb3a8e.tar.gz linux-next-249fa862deccee0de8071e61fe9946f2fdeb3a8e.zip | |
i2c: acpi: Force ASUE140D touchpads to 100 kHz
The ASUE140D touchpad on the ASUS Zenbook UX3404VC (BIOS UX3404VC.303)
starts lagging shortly after boot when the bus runs at the 400 kHz the
DSDT asks for, and only recovers after rebinding i2c-hid. Forcing
100 kHz fixes it.
Signed-off-by: Harinn <prinn.dev@pm.me>
Acked-by: Mika Westerberg <westeri@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20261004-i2c-acpi-asue140d-100khz-v1-1-cc2dbad00470@pm.me
| -rw-r--r-- | drivers/i2c/i2c-core-acpi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index 3af0e0551185..564e6ad66398 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -371,6 +371,7 @@ static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = { * the device works without issues on Windows at what is expected to be * a 400KHz frequency. The root cause of the issue is not known. */ + { "ASUE140D", 0 }, { "DELL0A86", 0 }, { "DLL0945", 0 }, { "ELAN0678", 0 }, |