Re: [PATCH v4] media: iris: add FPS calculation and VPP FW overhead in frequency formula

[Vikash Garodia]

On 3/25/2026 10:05 PM, Vishnu Reddy wrote:
> The driver was using a fixed default FPS value when calculating the VPU
> frequency. This caused wrong frequency requests for high‑frame‑rate
> streams, for example 4K at 240 FPS. Because of this, the hardware was
> running at a lower frequency than needed.
>
> Add the FPS measurement based on the decoder input buffer arrival rate.
> The measured FPS is stored per instance and used in frequency calculation
> instead of the fixed default FPS. The value is clamped so that it does
> not exceed platform limits. Add a VPP firmware overhead when running in
> STAGE_2.
>
> Signed-off-by: Vishnu Reddy<busanna.reddy@xxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Vikash Garodia <vikash.garodia@xxxxxxxxxxxxxxxx>