i2c: i801: Add lis3lv02d for Dell Precision M6800

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@molgen.mpg.de/

Signed-off-by: Patrick Höhn <hoehnp@gmx.de>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20240312193132.26518-1-hoehnp@gmx.de
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index d9d354ce231d6ff5031313b3ed0e0595d73e62d4..b6d1140eb678cef4d5b214ded3b8887f25b6dcba 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1252,6 +1252,7 @@ static const struct {
         */
        { "Latitude 5480",      0x29 },
        { "Precision 3540",     0x29 },
+       { "Precision M6800",    0x29 },
        { "Vostro V131",        0x1d },
        { "Vostro 5568",        0x29 },
        { "XPS 15 7590",        0x29 },