14:38 <xdarklight> narmstrong: nice to see the OTG patches revived :-)

14:38 <narmstrong> xdarklight: yeah finally !

14:39 <narmstrong> xdarklight: thanks for your initial work

14:39 <xdarklight> you're welcome, thanks for finishing it!

14:41 <xdarklight> different topic, maybe also as exciting: does anybody know a SoC which uses the "Analogix HDMI 1.4 TX IP"? I'm pretty sure that the 32-bit Meson SoCs use that, but I have trouble initializing the EDID/I2C clocks correctly (at least I assume that, because most of the time I only read garbage EDID)

14:43 <narmstrong> did you look at the anx78xx registers ?maybe they use the same IP, or a variant in their SoCs...

14:44 <narmstrong> EDID/I2C is always complicated to make correctly, if you don't manage, simply use the GPIO I2C and pass the i2c controller via the hdmi connector

14:44 <narmstrong> you will be able to add the embedded i2c controller in a second time

14:45 <narmstrong> unless you enabled HDCP, you don't need it

14:45 <xdarklight> all in-tree Analogix registers look very different unfortunately :/

14:45 <narmstrong> :-/

14:46 <xdarklight> hmm, that reminds me: I have a HDMI breakout board somewhere. I hope I can use that to verify the I2C bus frequency

17:30 <xdarklight> narmstrong: GPIO I2C for DDC was a great idea. with many hacks I get this: https://abload.de/img/img_20200324_182816klke9.jpg

17:31 <narmstrong> wow, pretty close !!

17:31 <narmstrong> do you try interlaced ?

17:31 <narmstrong> avoid it, interlaced on HDMI is a nightname

17:31 <narmstrong> nightmare*

17:32 <narmstrong> (but maybe it's not)

17:32 <xdarklight> I just boot my Odroid-C1 with whatever the bootloader sets, then run glmark2-es2-drm and get this

17:32 <narmstrong> did you try modetest to see the color mire ?

17:33 <xdarklight> which command is that exactly?

17:34 <xdarklight> ah that's part of drm

17:35 <narmstrong> AuyHQ7MQafZhSySj8Wfd

17:35 <narmstrong> erf

17:35 <narmstrong> yep it's part of libdrnm

17:36 <narmstrong> you can force different modes

17:36 <narmstrong> and see a colorful mire

17:36 <narmstrong> to debug

17:36 <narmstrong> and you can play with the planes and the plane formats

17:36 <narmstrong> it becomes very limited when you try complex stuff but it's very handy

17:39 <xdarklight> compiling... :)

20:50 <lvrp16> narmstrong: is u-boot otg in upstream possible as well?

20:50 <narmstrong> lvrp16: yes