[PATCH v3 1/3] media: atmel-isi: setup the ISI_CFG2 register directly

In the function configure_geometry(), we will setup the ISI CFG2 according to the sensor output format. It make no sense to just read back the CFG2 register and just set part of it. So just set up this register directly makes things simpler. Currently only support YUV format from camera sensor.

[PATCH v3 1/3] media: atmel-isi: setup the ISI_CFG2 register directly

In the function configure_geometry(), we will setup the ISI CFG2 according to the sensor output format. It make no sense to just read back the CFG2 register and just set part of it. So just set up this register directly makes things simpler. Currently only support YUV format from camera sensor.