On Thu, Dec 01, 2016 at 01:33:30AM +0800, Icenowy Zheng wrote:

quoted

quoted

?????????hdmi-out {
?????????????????compatible = "hdmi-connector";
?????????????????type = "a";
?????????????????/* I2C bus and GPIO references are made up for the example */
?????????????????ddc-i2c-bus = <&i2c4>;
?????????????????hpd-gpios = <&gpio4 7 GPIO_ACTIVE_HIGH>

the "hdmi-connector" is a big piece of software. It must handle a lot
of more and more exotic connectors.
So, I hope that you have written a "simple-hdmi-connector" which does
nothing but setting the connector type.
Where is it?

I suddenly thought about something...

If a DVI connector instead of a HDMI connector is soldered, how
should such a device tree be written?

Use a dvi-connector instead :)

How about solder a HDMI-to-VGA bridge on the board? (Maybe there
should be "dumb-hdmi-dvi-bridge" and "dumb-hdmi-vga-bridge"
drivers?)

It probably wouldn't be dumb, but yeah, it would definitely be a
bridge instead of the connector.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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