This is my attempt at adding devfreq (and cooling device) support to the lima driver. I didn't have much time to do in-depth testing. However, I'm sending this out early because there are many SoCs with Mali-400/450 GPU so I want to avoid duplicating the work with somebody else. The code is derived from panfrost_devfreq.c which is why I kept the Collabora copyright in lima_devfreq.c. Please let me know if I should drop this or how I can make it more clear that I "borrowed" the code from panfrost. I am seeking comments in two general areas: - regarding the integration into the existing lima code - for the actual devfreq code (I had to adapt the panfrost code slightly, because lima uses a bus and a GPU/core clock) My own TODO list includes "more" testing on various Amlogic SoCs. So far I have tested this on Meson8b and Meson8m2 (which both have a GPU OPP table defined). However, I still need to test this on a GXL board (which is currently missing the GPU OPP table). Martin Blumenstingl (1): drm/lima: Add optional devfreq support drivers/gpu/drm/lima/Kconfig | 1 + drivers/gpu/drm/lima/Makefile | 3 +- drivers/gpu/drm/lima/lima_devfreq.c | 162 ++++++++++++++++++++++++++++ drivers/gpu/drm/lima/lima_devfreq.h | 15 +++ drivers/gpu/drm/lima/lima_device.c | 4 + drivers/gpu/drm/lima/lima_device.h | 11 ++ drivers/gpu/drm/lima/lima_drv.c | 14 ++- drivers/gpu/drm/lima/lima_sched.c | 7 ++ drivers/gpu/drm/lima/lima_sched.h | 3 + 9 files changed, 217 insertions(+), 3 deletions(-) create mode 100644 drivers/gpu/drm/lima/lima_devfreq.c create mode 100644 drivers/gpu/drm/lima/lima_devfreq.h -- 2.24.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
