Re: [PATCH v3] staging: media: ipu3: Fix AWB x_start position when rightmost stripe is used

From: Dan Carpenter
Date: Fri Apr 08 2022 - 06:53:33 EST


On Fri, Apr 08, 2022 at 06:42:22PM +0800, Kate Hsuan wrote:
> An not calibrated x_start setting would result in an incorrect AWB grid
> configuration on a sensor when only the rightmost stripe is used.
>
> If the AWB grid coordinate is set to the rightmost stripe, for example,
> x_start is greater than 640, the AWB grid will be at the rightmost edge of
> the sensor. The AWB statistic will be fetched from the wrong place of the
> sensor and results in an incorrect AWB estimation result. Therefore,
> stripe offset should subtract from x_start to have a correct grid
> configuration for the rightmost stripe.
>

Thank you!

regards,
dan carpenter