Hi,
* Tomi Valkeinen <[email protected]> [191125 05:11]:
> Add HDMI support for AM437x GP EVM. The HDMI uses SiI9022 HDMI encoder,
> and is mutually exclusive with the LCD. The choice between LCD and HDMI
> is made by booting either with am437x-gp-evm.dtb or
> am437x-gp-evm-hdmi.dtb.
So Linux kernel needs a new board device tree file to toggle a GPIO line
to switch between LCD mode and HDMI?
That does not sound very user friendly for something that's supposed
to be hot pluggabe :)
> +/* Override SelLCDorHDMI from am437x-gp-evm.dts to select HDMI */
> +&gpio5 {
> + p8 {
> + output-low;
> + };
> +};
How about just leave the gpio unconfigured and document that a userspace
tool or /sys/kernel/debug/gpio is needed to toggle between the modes?
Regards,
Tony
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