This patch series introduces a number of useful features for the Tegra DRM driver. Patch 1 is a documentation update and adds a warning to the page-flip IOCTL to catch buggy drivers that return success but failed to update the crtc->fb field, which would cause the reference counting to become unbalanced.
Patch 2 adds support for the additional two planes available on Tegra hardware, while patch 3 implement .mode_set_base() to allow for some nice speed up when changing the framebuffer without actually changing the resolution. Patch 4 adds VBLANK support and patch 5 builds on the previous two to provide the page-flipping IOCTL. Patch 6 splits the DC_CMD_STATE_CONTROL register writes into two consecutive writes as required by the TRM.
Finally patch 7 adds a new file, named "framebuffers" to debugfs which can be used to dump a list of framebuffers attached to the DRM device. This is most useful to inspect the reference count but could also be helpful in diagnosing out-of-memory conditions and such.
Thierry
Thierry Reding (7): drm: Add consistency check for page-flipping drm/tegra: Add plane support drm/tegra: Implement .mode_set_base() drm/tegra: Implement VBLANK support drm/tegra: Implement page-flipping support drm/tegra: Split DC_CMD_STATE_CONTROL register write drm/tegra: Add list of framebuffers to debugfs
Documentation/DocBook/drm.tmpl | 6 + drivers/gpu/drm/drm_crtc.c | 7 + drivers/gpu/drm/tegra/dc.c | 489 ++++++++++++++++++++++++++++++++--------- drivers/gpu/drm/tegra/dc.h | 2 +- drivers/gpu/drm/tegra/drm.c | 103 +++++++++ drivers/gpu/drm/tegra/drm.h | 37 ++++ 6 files changed, 533 insertions(+), 111 deletions(-)