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How to activate IC resizer

Question asked by Denis Matteazzi on Jan 22, 2020
Latest reply on Apr 16, 2020 by Denis Matteazzi

Hi to all,

I'm trying to activate the resizer hardware of the i.mx6 Dual. I can't understand how to do that.

I'm using kernel 4.9.11 and it's not possible for me to update it. So I'm trying to manipulate driver for my purpose.

I use an external camera connected con CSI0. It works fine. I would to resize from 1920x1080 to 640x360 i.e. 3:1 ratio.

The camera format is YUYV 4:2:2. I suppose I should use postprocessing of the IC, but I'm not sure. I set the IC_PP_RSC register. I set the value 2 into CSI_SENS_CONF_DATA field of the CSI_SENS_CONF register. But nothing happens. I suppose I should activate some IDMAC channels. 

Please help me.

Thanks in advance.