Re: PL111 regression in v4.19-rc1

2018-08-27 Thread Linus Walleij
On Mon, Aug 27, 2018 at 4:34 PM Noralf Trønnes wrote: > I had time to look closer at this, and I don't think the fbdev change is > to blame. I think it's just that the problem shows up there because it's > the first to allocate a buffer. If the DRM side doesn't work either, I > guess the problem

Re: PL111 regression in v4.19-rc1

2018-08-27 Thread Noralf Trønnes
Den 27.08.2018 14.43, skrev Linus Walleij: On Mon, Aug 27, 2018 at 2:21 PM Noralf Trønnes wrote: This is one suspect: 894a677f4b3e drm/cma-helper: Use the generic fbdev emulation This doesn't revert cleanly so I couldn't try that right off. But the graphics do work before this commit. I ch

Re: PL111 regression in v4.19-rc1

2018-08-27 Thread Linus Walleij
On Mon, Aug 27, 2018 at 2:43 PM Linus Walleij wrote: > I'm trying to see if I can fix it, any hints welcome! BTW this is pretty easy to reproduce in QEMU using a cross compilers: I realized we were missing the VGA DAC when testing this... make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- versati

Re: PL111 regression in v4.19-rc1

2018-08-27 Thread Linus Walleij
On Mon, Aug 27, 2018 at 2:21 PM Noralf Trønnes wrote: > This is one suspect: 894a677f4b3e > drm/cma-helper: Use the generic fbdev emulation This doesn't revert cleanly so I couldn't try that right off. But the graphics do work before this commit. I checked out the kernel tree on this commit an

Re: PL111 regression in v4.19-rc1

2018-08-27 Thread Noralf Trønnes
Hi Linus, Den 27.08.2018 14.12, skrev Linus Walleij: Hi folks, I'm seeing this on all PL111 systems (several ARM reference designs and Nomadik) with v4.19-rc1: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] No driver support for vblank timestamp query. [ cut here

PL111 regression in v4.19-rc1

2018-08-27 Thread Linus Walleij
Hi folks, I'm seeing this on all PL111 systems (several ARM reference designs and Nomadik) with v4.19-rc1: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] No driver support for vblank timestamp query. [ cut here ] WARNING: CPU: 0 PID: 1 at ../include/linu