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 removes usage of the tegra_framebuffer structure which was used before the driver moved to the CMA FB helpers. It is wrong to use it but it happens to work because the drm_fb_cma and tegra_framebuffers were sufficiently similar.
Patch 3 adds support for the additional two planes available on Tegra hardware, while patch 4 implement .mode_set_base() to allow for some nice speed up when changing the framebuffer without actually changing the resolution. Patch 5 adds VBLANK support and patch 6 builds on the previous two to provide the page-flipping IOCTL. Patch 7 splits the DC_CMD_STATE_CONTROL register writes into two consecutive writes as required by the TRM.
Finally patch 8 fixes color expansions for pixel formats with less than 24 bits per pixel and patch 9 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.
This series is based on Dave's drm-next branch.
Thierry
Thierry Reding (9): drm: Add consistency check for page-flipping drm/tegra: Remove bogus tegra_framebuffer structure 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: Fix color expansion 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 | 585 +++++++++++++++++++++++++++++++++-------- drivers/gpu/drm/tegra/dc.h | 14 +- drivers/gpu/drm/tegra/drm.c | 103 ++++++++ drivers/gpu/drm/tegra/drm.h | 43 ++- 6 files changed, 635 insertions(+), 123 deletions(-)