linux-kernel - Re: [PATCH v5 2/2] media: i2c: imx412: Extend the power-on waiting time

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Message-ID: <96a8dec5-b984-4a9a-b3ae-93e062a8c81e@oss.qualcomm.com>
Date: Wed, 21 Jan 2026 18:07:15 +0800
From: Wenmeng Liu <wenmeng.liu@....qualcomm.com>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/2] media: i2c: imx412: Extend the power-on waiting
 time

Hi Sakari.

On 1/21/2026 5:54 PM, Sakari Ailus wrote:
> Hi Wenmeng,
> 
> On Wed, Jan 21, 2026 at 05:12:15PM +0800, Wenmeng Liu wrote:
>> 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@....qualcomm.com>
>> ---
>>   drivers/media/i2c/imx412.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/i2c/imx412.c b/drivers/media/i2c/imx412.c
>> index aa63dfc349181bf9c180ffd566b0317d05b410c1..b1c201b4c7d008aa70ac84205e4de119e776047b 100644
>> --- a/drivers/media/i2c/imx412.c
>> +++ b/drivers/media/i2c/imx412.c
>> @@ -1037,7 +1037,7 @@ static int imx412_power_on(struct device *dev)
>>   		goto error_reset;
>>   	}
>>   
> 
> Could you please add the comment why this was being done? It's not enough
> to have this in the commit message.
Sure, will do.

Thanks,
Wenmeng