linux-kernel - Accelerometer lis3lv02d is present on SMBus but its address is unknown, skipping registration

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Date:   Mon, 27 Feb 2023 15:23:13 +0100
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     Jean Delvare <jdelvare@...e.com>
Cc:     linux-i2c@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        Dell.Client.Kernel@...l.com,
        Pali Rohár <pali@...nel.org>
Subject: Accelerometer lis3lv02d is present on SMBus but its address is
 unknown, skipping registration

Dear Linux folks,


On the Dell Precision 3540, BIOS 1.23.0 12/19/2022, with Debian 
sid/unstable, Linux 6.1.12 logs the warning below:

     Accelerometer lis3lv02d is present on SMBus but its address is 
unknown, skipping registration

This warning was already logged by

     Linux version 5.19.0-2-amd64 (debian-kernel@...ts.debian.org) 
(gcc-11 (Debian 11.3.0-6) 11.3.0, GNU ld (GNU Binutils for Debian) 
2.38.90.20220713) #1 SMP PREEMPT_DYNAMIC Debian 5.19.11-1 (2022-09-24)

with firmware BIOS 1.15.0 12/08/2021.

What can a user do about this? It looks like the I2C addresses need to 
be added to `dell_lis3lv02d_devices[]` in `drivers/i2c/busses/i2c-i801.c`.


Kind regards,

Paul


PS: Some more logs:

```
[    0.000000] Linux version 6.1.0-5-amd64 
(debian-kernel@...ts.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU 
ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 
6.1.12-1 (2023-02-15)
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-6.1.0-5-amd64 
root=UUID=c9342a55-b747-4442-b2f4-bc03eb7a51cf ro quiet noisapnp 
log_buf_len=2M cryptomgr.notests btusb.enable_autosuspend=y 
random.trust_cpu=on drm.debug=0xe log_buf_len=8M
[…]
[    0.000000] DMI: Dell Inc. Precision 3540/0M14W7, BIOS 1.23.0 12/19/2022
[…]
[   20.631866] i801_smbus 0000:00:1f.4: SPD Write Disable is set
[   20.631925] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt
[   20.662022] i801_smbus 0000:00:1f.4: Accelerometer lis3lv02d is 
present on SMBus but its address is unknown, skipping registration
[…]
```