From: Jacob Bazata <jacobbazata@gmail.com>
To: wsa+renesas@sang-engineering.com, westeri@kernel.org
Cc: linux-i2c@vger.kernel.org, linux-acpi@vger.kernel.org,
inux-kernel@vger.kernel.org, Jacob Bazata <jacobbazata@gmail.com>
Subject: [PATCH] i2c: acpi: Add VEN_04F3 to i2c_acpi_force_100khz_device_ids
Date: Tue, 19 May 2026 01:10:31 -0400 [thread overview]
Message-ID: <20260519051031.6660-1-jacobbazata@gmail.com> (raw)
This model trackpad (04F3:32AA), found on various Dell XPS models
from 2023 including XPS 9500, 9510, 9520 and 9530 is well documented to,
at random, exhibit excessive smoothing with no obvious cause, similar
to other trackpad devices listed in the i2c_acpi_force_100khz_device
_ids struct.
Forcing the bus to 100KHz eliminates this behavior.
Signed-off-by: Jacob Bazata <jacobbazata@gmail.com>
---
drivers/i2c/i2c-core-acpi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 28c0e4884..512ebdfcc 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -373,6 +373,7 @@ static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = {
{ "DLL0945", 0 },
{ "ELAN0678", 0 },
{ "ELAN06FA", 0 },
+ { "VEN_04F3", 0 },
{}
};
--
2.54.0
next reply other threads:[~2026-05-19 5:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-19 5:10 Jacob Bazata [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-05-19 5:24 [PATCH] i2c: acpi: Add VEN_04F3 to i2c_acpi_force_100khz_device_ids Jacob Bazata
2026-05-19 10:05 ` Mika Westerberg
2026-05-19 11:08 ` Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260519051031.6660-1-jacobbazata@gmail.com \
--to=jacobbazata@gmail.com \
--cc=inux-kernel@vger.kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-i2c@vger.kernel.org \
--cc=westeri@kernel.org \
--cc=wsa+renesas@sang-engineering.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox