On the Dell Precision M6800/OXD1M5, BIOS A26 06/13/2029, Linux prints the
warning below.
i801_smbus 0000:00:1f.4: Accelerometer lis3lv02d is present on SMBus but its address is unknown, skipping registration
Following the same suggestions by Wolfram Sang as for the Dell Precision
3540 [1], the accelerometer can be successfully found on I2C bus 0 at
address 0x29.
$ echo lis3lv02d 0x29 | sudo tee /sys/bus/i2c/devices/i2c-0/new_device
lis3lv02d 0x29
$ dmesg | tail -5
[1185.385204] lis3lv02d_i2c 0-0029: supply Vdd not found, using dummy regulator
[1185.385235] lis3lv02d_i2c 0-0029: supply Vdd_IO not found, using dummy regulator
[1185.399689] lis3lv02d: 8 bits 3DC sensor found
[1185.449391] input: ST LIS3LV02DL Accelerometer as /devices/platform/lis3lv02d/input/input371
[1185.449577] i2c i2c-0: new_device: Instantiated device lis3lv02d at 0x29
So, the device has that accelerometer. Add the I2C address to the
mapping list, and test it successfully on the device.
[1]: https://lore.kernel.org/linux-i2c/97708c11-ac85-fb62-2c8e-d37739ca826f@xxxxxxxxxxxxx/
Signed-off-by: Patrick Höhn <hoehnp@xxxxxx>
---
drivers/i2c/busses/i2c-i801.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 2c36b36d7d51..c1fee2c61da1 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1231,6 +1231,7 @@ static const struct {
*/
{ "Latitude 5480", 0x29 },
{ "Precision 3540", 0x29 },
+ { "Precision M6800", 0x29 },
{ "Vostro V131", 0x1d },
{ "Vostro 5568", 0x29 },
{ "XPS 15 7590", 0x29 },
--
2.43.2
