Re: [PATCH v2] media: venus: core: Fix msm8996 frequency table

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Hi Loic,

On 9/11/19 5:45 PM, Loic Poulain wrote:
> In downstream driver, there are two frequency tables defined,
> one for the encoder and one for the decoder:
> 
> /* Encoders /
> <972000 490000000 0x55555555>, / 4k UHD @ 30 /
> <489600 320000000 0x55555555>, / 1080p @ 60 /
> <244800 150000000 0x55555555>, / 1080p @ 30 /
> <108000 75000000 0x55555555>, / 720p @ 30 */
> 
> /* Decoders /
> <1944000 490000000 0xffffffff>, / 4k UHD @ 60 /
> < 972000 320000000 0xffffffff>, / 4k UHD @ 30 /
> < 489600 150000000 0xffffffff>, / 1080p @ 60 /
> < 244800 75000000 0xffffffff>; / 1080p @ 30 */
> 
> It shows that encoder always needs a higher clock than decoder.
> 
> In current venus driver, the unified frequency table is aligned
> with the downstream decoder table which causes performance issues
> in encoding scenarios. Fix that by aligning frequency table on
> worst case (encoding).
> 
> Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
> ---
>  drivers/media/platform/qcom/venus/core.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)

Acked-by: Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx>

-- 
-- 
regards,
Stan



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