Files
linux/drivers
Thierry Reding 33a8eb8d40 drm/tegra: dc: Implement runtime PM
Use runtime PM to clock-gate, assert reset and powergate the display
controller. This ties in nicely with atomic DPMS in that a runtime PM
reference is taken before a pipe is enabled and dropped after it has
been shut down.

To make sure this works, make sure to only ever update planes on active
CRTCs, otherwise register accesses to a clock-gated and reset CRTC will
hang the CPU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-07-04 11:35:46 +02:00
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