On Fri, Mar 8, 2019 at 2:05 AM Neil Armstrong <narmstr...@baylibre.com> wrote: > > Hi Rob, > > On 08/03/2019 00:13, Rob Herring wrote: > > On Fri, Feb 1, 2019 at 6:08 AM Neil Armstrong <narmstr...@baylibre.com> > > wrote: > >> > >> Add support for SCDC Setup for TMDS Clock > 3.4GHz and enable TMDS > >> Scrambling when supported or mandatory. > >> > >> This patch also adds an helper to setup the control bit to support > >> the high TMDS Bit Period/TMDS Clock-Period Ratio as required with > >> TMDS Clock > 3.4GHz for HDMI2.0 3840x2160@60/50 modes. > >> > >> These changes were based on work done by Huicong Xu <x...@rock-chips.com> > >> and Nickey Yang <nickey.y...@rock-chips.com> to support HDMI2.0 modes > >> on the Rockchip 4.4 BSP kernel at [1] > >> > >> [1] https://github.com/rockchip-linux/kernel/tree/release-4.4 > >> > >> Cc: Nickey Yang <nickey.y...@rock-chips.com> > >> Cc: Huicong Xu <x...@rock-chips.com> > >> Signed-off-by: Neil Armstrong <narmstr...@baylibre.com> > >> Tested-by: Heiko Stuebner <he...@sntech.de> > >> Reviewed-by: Andrzej Hajda <a.ha...@samsung.com> > >> --- > >> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 85 > >> ++++++++++++++++++++++++++++++- > >> drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | 1 + > >> include/drm/bridge/dw_hdmi.h | 1 + > >> 3 files changed, 85 insertions(+), 2 deletions(-) > > > > This commit in drm-misc-next is breaking booting on the Rock960. I > > have FB and fbcon enabled. The boot hangs after this message: > > > > [ 3.012334] [drm:rockchip_drm_fbdev_create] FB [1920x1080]-24 > > kvaddr=(____ptrval____) offset=0 size=8294400 > > Could you give more details on the tree used ? did you bisect to find this > commit ?
As I said above, drm-misc-next (from drm-misc tree) is the branch. I bisected between it and v5.0. Reverting it fixes booting. Rob
