linux-kernel - [PATCH] i2c: Force DLL0945 touchpad i2c freq to 100khz

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Message-ID: <20250620052832.26614-1-myth5@myth5.com>
Date: Fri, 20 Jun 2025 13:28:31 +0800
From: "fangzhong.zhou" <myth5@...h5.com>
To: wsa+renesas@...g-engineering.com
Cc: westeri@...nel.org,
	linux-i2c@...r.kernel.org,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"fangzhong.zhou" <myth5@...h5.com>
Subject: [PATCH] i2c: Force DLL0945 touchpad i2c freq to 100khz

Signed-off-by: fangzhong.zhou <myth5@...h5.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 d2499f302b50..5b424637bbaf 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -371,6 +371,7 @@ static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = {
 	 * a 400KHz frequency. The root cause of the issue is not known.
 	 */
 	{ "ELAN06FA", 0 },
+	{ "DLL0945", 0 },
 	{}
 };
2.48.1