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| author | Tobias Jakobi <tjakobi@math.uni-bielefeld.de> | 2016-09-27 17:50:06 +0200 |
|---|---|---|
| committer | Inki Dae <daeinki@gmail.com> | 2016-10-01 00:39:38 +0900 |
| commit | 05e2e4666c2609bd9a72140611713c19ce28fce1 (patch) | |
| tree | 2cb5265c6d09fadbd33df499959b1416f3ec0731 /drivers/gpu/drm/drm_framebuffer.c | |
| parent | 9276dff7a89d81e84a4e4a1a07b636232be5aab0 (diff) | |
Revert "drm/exynos: g2d: fix system and runtime pm integration"
This reverts commit b05984e21a7e000bf5074ace00d7a574944b2c16.
The change, i.e. merging the sleep and runpm operations, produces
a deadlock situation:
(1) exynos_g2d_exec_ioctl() prepares a runqueue node and
calls g2d_exec_runqueue()
(2) g2d_exec_runqueue() calls g2d_dma_start() which gets
runtime PM sync
(3) runtime PM core calls g2d_runtime_resume()
(4) g2d_runtime_resume() calls g2d_exec_runqueue(), which
loops back to (2)
Due to mutexes that are in place, a deadlock situation is created.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/drm_framebuffer.c')
0 files changed, 0 insertions, 0 deletions