[PATCH v4 0/2] iio: imu: st_lsm6dsx: Add ACPI ID SMOCF05 (Minisforum V3 / V3 SE)

[Jared Wuerzburger]

Hi,

This adds the SMOCF05 ACPI ID used by the Minisforum V3 and V3 SE
tablets for their LSM6DS3TR-C, picking up Samuel's series [1][2].
Without it the accelerometer and gyroscope are missing unless the user
carries a DSDT override [3].

Changes since v3 [4]:
 - 1/2: convert the ACPI match table to C99 initializers instead of
   only dropping the trailing commas (Andy).
 - 2/2: explain in the changelog why the firmware's SLA0 matrix is not
   used and the orientation comes from hwdb (Andy); drop the pointer
   to the cover letter (Andy); Link: -> Closes: (Andy).
 - Assisted-by: LLM (Andy).

A correction to the v3 cover letter: SLA0 applied via hwdb gives correct
rotation but inverted tilt (it follows the Windows convention, see 2/2).
The correct matrix is -1 0 0; 0 -1 0; 0 0 1. The systemd hwdb entry [5]
was merged with SLA0 and has since been fixed [6].

The full STS device from the V3 BIOS (1.06), identical on the V3 SE:

      Device (STS)
      {
          Name (_HID, EisaId ("SMOCF05"))
          Name (_CID, EisaId ("SMOCF05"))
          Name (_UID, Zero)
          Method (_STA, 0, NotSerialized)
          {
              Return (0x0F)
          }

          Method (_CRS, 0, NotSerialized)
          {
              Name (RBUF, ResourceTemplate ()
              {
                  I2cSerialBusV2 (0x006A, ControllerInitiated, 0x00061A80,
                      AddressingMode7Bit, "\\_SB.I2CD",
                      0x00, ResourceConsumer, , Exclusive,
                      RawDataBuffer (0x04)
                      {
                          0x53, 0x4C, 0x41, 0x30
                      })
                  I2cSerialBusV2 (0x006A, ControllerInitiated, 0x00061A80,
                      AddressingMode7Bit, "\\_SB.I2CD",
                      0x00, ResourceConsumer, , Exclusive,
                      RawDataBuffer (0x04)
                      {
                          0x53, 0x4C, 0x47, 0x30
                      })
                  GpioInt (Edge, ActiveHigh, Exclusive, PullNone, 0x0000,
                      "\\_SB.GPIO", 0x00, ResourceConsumer, ,
                      RawDataBuffer (0x04)
                      {
                          0x53, 0x4C, 0x41, 0x30
                      })
                      {
                          0x0009
                      }
              })
              Return (RBUF) /* \_SB_.I2CD.STS_._CRS.RBUF */
          }

          Method (SLA0, 0, NotSerialized)
          {
              Name (RBUF, Package (0x03)
              {
                  "-1 0 0",
                  "0 -1 0",
                  "0 0 -1"
              })
              Return (RBUF) /* \_SB_.I2CD.STS_.SLA0.RBUF */
          }

          Method (SLG0, 0, NotSerialized)
          {
              Name (RBUF, Package (0x03)
              {
                  "1 0 0",
                  "0 1 0",
                  "0 0 1"
              })
              Return (RBUF) /* \_SB_.I2CD.STS_.SLG0.RBUF */
          }
      }

Thanks to Samuel for the original series and to Andy for the reviews.

[1] v1: https://lore.kernel.org/linux-iio/20251223025351.3099978-2-samuel@xxxxxxxxxxxxxxx/
[2] v2: https://lore.kernel.org/linux-iio/20260201225450.1649001-2-samuel@xxxxxxxxxxxxxxx/
[3] https://github.com/mudkipme/awesome-minisforum-v3/issues/2
[4] v3: https://lore.kernel.org/linux-iio/20260927220559.24169-1-jwuerz@xxxxxxxxx/
[5] https://github.com/systemd/systemd/pull/43935
[6] https://github.com/systemd/systemd/pull/43941

Jared Wuerzburger (1):
  iio: imu: st_lsm6dsx: Use C99 initializers in ACPI match table

Samuel Dionne-Riel (1):
  iio: imu: st_lsm6dsx: Add ACPI ID SMOCF05 for LSM6DS3TR-C

 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)


base-commit: a3b3580713f3ac5a32dc2874ee546828977a1d68
-- 
2.55.0