On 27/04/18 19:51, Linus Walleij wrote:
On Fri, Apr 27, 2018 at 5:02 PM, Robin Murphy <robin.murphy@xxxxxxx> wrote:
I dug a little bit and it seems pl111_modeset_init() is deferring because it
can't find endpoint 0. And given that that's apparently pointing at some
non-existent panel rather than the DVI encoder as I would (naively) expect,
I can at least form a self-consistent explanation and give up on the grounds
that I'm probably missing some important DT changes.
Yeah it does help if I also send the required DT changes :/
Sorry for my absentmindedness, I'll shoot it off right now so you
can test it.
Hooray, thanks for that.
For these 2 patches with a V2P-CA15_A7 tile and the DT fixed up,
Tested-by: Robin Murphy <robin.murphy@xxxxxxx>
Framebuffer console and /dev/fb0 access for the motherboard CLCD works,
and it keeps out of the way as expected with CONFIG_DRM_HDLCD=y. I can't
convince an X session to start, but that appears more to do with sii902x
falling apart*, which I can't be bothered to even try debugging.
Robin.
*specifically, lots of this, which I imagine is related to xorg trying
to either read the EDID or change mode:
...
[ 243.439669] i2c i2c-0: sendbytes: NAK bailout.
[ 243.454247] i2c i2c-0: sendbytes: NAK bailout.
[ 247.743261] i2c i2c-0: sendbytes: NAK bailout.
[ 247.770281] sii902x 0-0039: failed to read status (-6)
[ 247.786609] i2c i2c-0: sendbytes: NAK bailout.
[ 248.118522] i2c i2c-0: sendbytes: NAK bailout.
[ 248.145485] sii902x 0-0039: failed to read status (-6)
[ 248.177800] i2c i2c-0: sendbytes: NAK bailout.
[ 258.256500] i2c i2c-0: sendbytes: NAK bailout.
[ 258.274763] i2c i2c-0: sendbytes: NAK bailout.
[ 268.499637] i2c i2c-0: sendbytes: NAK bailout.
[ 268.517899] i2c i2c-0: sendbytes: NAK bailout.
...
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