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From: =?UTF-8?q?Patrick=20H=C3=B6hn?= <hoehnp@gmx.de>
To: Jean Delvare <jdelvare@suse.com>,
	Andi Shyti <andi.shyti@kernel.org>
Cc: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>,
	Paul Menzel <pmenzel@molgen.mpg.de>,
	=?UTF-8?q?Patrick=20H=C3=B6hn?= <hoehnp@gmx.de>,
	linux-i2c@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v3] i2c: i801: Add lis3lv02d for Dell Precision M6800
Date: Tue, 12 Mar 2024 20:31:31 +0100
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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 b=
ut 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 dum=
my 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-d37739ca826=
f@molgen.mpg.de/
Signed-off-by: Patrick H=C3=B6hn <hoehnp@gmx.de>
=2D--
 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
=2D-- 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 },
=2D-
2.43.2