From: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Date: Fri, 23 Jan 2026 09:19:56 +0000 (+0800)
Subject: media: i2c: imx412: Extend the power-on waiting time
X-Git-Tag: v7.1-rc1~169^2~244
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=64ad2497e626c48689cca6507352c4ab11cc154d;p=thirdparty%2Flinux.git

media: i2c: imx412: Extend the power-on waiting time

The Arducam IMX577 module requires a longer reset time than the 1000µs
configured in the current driver. Increase the wait time after power-on
to ensure proper initialization.

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/media/i2c/imx412.c b/drivers/media/i2c/imx412.c
index aa63dfc349181..e25e0a9ff65c3 100644
--- a/drivers/media/i2c/imx412.c
+++ b/drivers/media/i2c/imx412.c
@@ -1037,7 +1037,11 @@ static int imx412_power_on(struct device *dev)
 		goto error_reset;
 	}
 
-	usleep_range(1000, 1200);
+	/*
+	 * Certain Arducam IMX577 module variants require a longer reset settle
+	 * time. Increasing the delay from 1ms to 10ms ensures reliable startup.
+	 */
+	usleep_range(10000, 12000);
 
 	return 0;