Hello, while playing around with FIMD enabled, I noticed that when first using the device a zero division was triggered in fimd_calc_clkdiv(). I remembered that I had a similar issue some time ago.
I added a stub fimd_atomic_check() which shows that vrefresh is zero when fimd_calc_clkdiv() is called. [ 164.059361] [drm:exynos_plane_mode_set] plane : offset_x/y(0,0), width/height(1366,768) [ 164.067175] [drm:fimd_atomic_check] xres=1366, yres=768, refresh=0, intl=0 [ 164.074198] [drm:drm_atomic_helper_check_planes] [CRTC:24:crtc-0] atomic driver check failed I went back to the git log and noticed that some time ago in 50bbfbffa5c894def440ce8157dfe53e60960d35 the fimd_mode_fixup() call was removed. I'm now wondering where exactly vrefresh is set to a sane value. As far as I can see of_get_videomode() is used to fetch the video mode from the DT, and drm_display_mode_from_videomode() is used to convert it. However vrefresh is nowhere set. So is something broken here, or am I missing something? With best wishes, Tobias
