Am Dienstag, 8. Oktober 2019, 21:49:54 CEST schrieb Douglas Anderson: > When I re-posted Sean's original commit to add the override mode for > the kevin panel, for some reason I didn't notice that the pixel clock > wasn't quite right. Looking at /sys/kernel/debug/clk/clk_summary on > downstream kernels it can be seen that the VOP clock is supposed to be > 266,666,667 Hz achieved by dividing the 800 MHz PLL by 3. > > Looking at history, it seems that even Sean's first patch [1] had this > funny clock rate. I'm not sure where it came from since the commit > message specifically mentioned 26666 kHz and the Chrome OS tree [2] > can be seen to request 266667 kHz. > > In any case, let's fix it up. This together with my patch [3] to do > the proper rounding when setting the clock rate makes the VOP clock > more proper as seen in /sys/kernel/debug/clk/clk_summary. > > [1] https://lore.kernel.org/r/20180206165626.37692-4-seanpaul@xxxxxxxxxxxx > [2] https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-4.4/drivers/gpu/drm/panel/panel-simple.c#1172 > [3] https://lkml.kernel.org/r/20191003114726.v2.1.Ib233b3e706cf6317858384264d5b0ed35657456e@changeid > > Fixes: 84ebd2da6d04 ("arm64: dts: rockchip: Specify override mode for kevin panel") > Cc: Sean Paul <seanpaul@xxxxxxxxxxxx> > Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx> applied as fix for 5.4 Thanks Heiko
