Re: [PATCH v4] staging: media: ipu3: Fix AF x_start position when rightmost stripe is used

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On Thu, Mar 17, 2022 at 03:57:13PM +0800, Kate Hsuan wrote:
> For the AF configuration, if the rightmost stripe is used, the AF scene
> will be at the incorrect location of the sensor.
> 
> The AF coordinate may be set to the right part of the sensor. This
> configuration would lead to x_start being greater than the
> down_scaled_stripes offset and the leftmost stripe would be disabled
> and only the rightmost stripe is used to control the AF coordinate. If
> the x_start doesn't perform any adjustments, the AF coordinate will be
> at the wrong place of the sensor since down_scaled_stripes offset
> would be the new zero of the coordinate system.
> 
> In this patch, if only the rightmost stripe is used, x_start should
> minus down_scaled_stripes offset to maintain its correctness of AF
> scene coordinate.
> 
> Changes in v2:
> 1. Remove the setting of the first stripe.
> 
> Changes in v4:
> 1. x_start is estimated based on the method for both stripes are enabled.
> 2. x_end is estimated based on the width.
> 
> Signed-off-by: Kate Hsuan <hpa@xxxxxxxxxx>

Thanks, Kate!

Applied to my tree.

-- 
Sakari Ailus



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