Hi, On 1 March 2016 at 01:52, Eric Anholt <eric@xxxxxxxxxx> wrote: > These are for fixing the vc4 driver on the Pi 3. Note that patch 2 > will also be necessary for fixing HPD on the Pi2, which we've been > carrying downstream patches to work around until now. Indeed. Having cherry-picked 80032d2e61 and added ACTIVE_LOW to the bcm2836-rpi-2-b DT, I now get HPD reported correctly. I think it might still need work: on RPi2 again, DDC fails on boot (the same BCM2835_I2C_S_ERR bit being set, i.e. 'i2c transfer failed: 100'), and does work after a hotplug cycle. But the machine then immediately hard-hangs - no serial console - after cat /sys/class/drm/card0-HDMI-A-1/edid. On the grounds that the VC4 node isn't yet in upstream DT though, and this _does_ indeed fix HPD: Tested-by: Daniel Stone <daniels@xxxxxxxxxxxxx> Cheers, Daniel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
