6.17-stable review patch. If anyone has any objections, please let me know.
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From: Cryolitia PukNgae cryolitia@uniontech.com
[ Upstream commit dc757dc1572d579c2634c05d0a03c5676227c571 ]
GPD devices originally used BMI160 sensors with the "BMI0160" PNP ID. When they switched to BMI260 sensors in newer hardware, they reused the existing Windows driver which accepts both "BMI0160" and "BMI0260" IDs. Consequently, they kept "BMI0160" in DSDT tables for new BMI260 devices, causing driver mismatches in Linux.
1. GPD updated BIOS v0.40+[1] for newer devices to report "BMI0260" for BMI260 sensors to avoid loading the bmi160 driver on Linux. While this isn't Bosch's VID; 2. Bosch's official Windows driver uses "BMI0260" as a compatible ID 3. We're seeing real devices shipping with "BMI0260" in DSDT
The DSDT excerpt of GPD G1619-04 with BIOS v0.40:
Scope (_SB.I2CC) { Device (BMA2) { Name (_ADR, Zero) // _ADR: Address Name (_HID, "BMI0260") // _HID: Hardware ID Name (_CID, "BMI0260") // _CID: Compatible ID Name (_DDN, "Accelerometer") // _DDN: DOS Device Name Name (_UID, One) // _UID: Unique ID Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Name (RBUF, ResourceTemplate () { I2cSerialBusV2 (0x0069, ControllerInitiated, 0x00061A80, AddressingMode7Bit, "\_SB.I2CC", 0x00, ResourceConsumer, , Exclusive, ) }) Return (RBUF) /* _SB_.I2CC.BMA2._CRS.RBUF */ } # omit some noise } }
Link: http://download.softwincn.com/WIN%20Max%202024/Max2-7840-BIOS-V0.41.zip #1 Signed-off-by: Cryolitia PukNgae cryolitia@uniontech.com Reviewed-by: Andy Shevchenko andy@kernel.org Acked-by: Alex Lanzano lanzano.alex@gmail.com Link: https://patch.msgid.link/20250821-bmi270-gpd-acpi-v4-1-5279b471d749@uniontec... Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/imu/bmi270/bmi270_i2c.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/iio/imu/bmi270/bmi270_i2c.c b/drivers/iio/imu/bmi270/bmi270_i2c.c index c77839b03a969..b909a421ad017 100644 --- a/drivers/iio/imu/bmi270/bmi270_i2c.c +++ b/drivers/iio/imu/bmi270/bmi270_i2c.c @@ -41,6 +41,8 @@ static const struct i2c_device_id bmi270_i2c_id[] = { static const struct acpi_device_id bmi270_acpi_match[] = { /* GPD Win Mini, Aya Neo AIR Pro, OXP Mini Pro, etc. */ { "BMI0160", (kernel_ulong_t)&bmi260_chip_info }, + /* GPD Win Max 2 2023(sincice BIOS v0.40), etc. */ + { "BMI0260", (kernel_ulong_t)&bmi260_chip_info }, { } };