* Tony Lindgren <tony@xxxxxxxxxxx> [191212 17:21]:
> Hi,
>
> * Tomi Valkeinen <tomi.valkeinen@xxxxxx> [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?
Adding also Linus Walleij to Cc in case he has some ideas here.
Anyways, I'm applying the changes to dra76-evm am57xx-idk-common
into omap-for-v5.6/dt as they have no GPIO pin limitation.
I'd like to hear comments from folks on the first two though.
Regards,
Tony
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