github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-24 06:24:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: dts: allwinner: sun50i-a64-pinephone: Fix mpu6050 mount matrix

Browse Source 
The current mount matrix for mpu6050 is wrong. The mount matrix is a
simple transform from the sensor coordinate space to the device
coordinate space described in DT, where, looking at the screen, X
points to the right, Y to the top, and Z towards the user.

The mpu6050 is mounted like this (looking at the screen from the
front; the sensor is on the near side of the PCB, so its Z axis
points towards the user; o marks the pin 1 corner):

           +Xs
            ^
            |
         +------+
  +Ys <--|      |
         | o    |
         +------+

so this gives:

  Xd = -Ys  [0, -1, 0]
  Yd =  Xs  [1, 0, 0]
  Zd =  Zs  [0, 0, 1]

Fixes: 2496b2aaac ("arm64: dts: allwinner: pinephone: Add mount matrix to accelerometer")
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Link: https://patch.msgid.link/20260725111909.2244868-1-megi@xff.cz
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
This commit is contained in:
Ondrej Jirman 2026-07-25 13:19:07 +02:00 committed by Chen-Yu Tsai
parent 75dc83d420
commit dfc735fd93
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
View File

@ -230,8 +230,8 @@ accelerometer@68 {
interrupts = <7 5 IRQ_TYPE_EDGE_RISING>; /* PH5 */
vdd-supply = <&reg_dldo1>;
vddio-supply = <&reg_dldo1>;
mount-matrix = "0", "1", "0",
"-1", "0", "0",
mount-matrix = "0", "-1", "0",
"1", "0", "0",
"0", "0", "1";
};
};