This is a successor of a previous patchset by Christian [0] Patch 1 reverts a previous fix for loss of HDMI sync when playing YUV420 @ 59.94 media. The patch does resolve a calculation issue. It also makes all fractional rates invalid which is a bigger problem.
Patch 2 changes the whole drm/meson driver to use Hz as unit for clocks/ frequencies. And importantly it uses the relevant 64-bit maths helpers so the code can still be compiled using for 32-bit ARM. Maxime previously suggested using drm_hdmi_compute_mode_clock(). That's still something to implement with future patches. Neil, I'd like to hear your feedback on this approach. [0] https://lore.kernel.org/linux-amlogic/20250110074458.3624094-1-christianshew...@gmail.com/ Christian Hewitt (1): Revert "drm/meson: vclk: fix calculation of 59.94 fractional rates" Martin Blumenstingl (1): drm/meson: use unsigned long long / Hz for frequency types drivers/gpu/drm/meson/meson_drv.c | 2 +- drivers/gpu/drm/meson/meson_drv.h | 2 +- drivers/gpu/drm/meson/meson_encoder_hdmi.c | 29 +-- drivers/gpu/drm/meson/meson_vclk.c | 195 +++++++++++---------- drivers/gpu/drm/meson/meson_vclk.h | 13 +- 5 files changed, 126 insertions(+), 115 deletions(-) -- 2.49.0
