i have a custom board with an adv7280-m wired up to the imx6 dart. trying to figure out how to create a device tree entry in yocto and correctly configure the chip.
the setup is as follows:
- the I2C interface are pins 45 (SCL) and 47 (SDA) on the dart.
- the dart documentation names these as (GPIO5)I2C1_SDA and (GPIO5)I2C1_SDA.
- VIDEO_RESET and VIDEO_PWRDWN need to be logic HI for the video chip to work.
- they are GPIO pins GPIO1 and GPIO1.
is there anywhere that has decent documentation which describes the process of setting up a device tree entry? looking at a similar entry for the adv7180 on the sabre board, didn't help much.