drm/tegra: dc: Add powergate support

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Both display controllers are in their own power partition. Currently the
driver relies on the assumption that these partitions are on (which is
the hardware default). However some bootloaders may disable them, so the
driver must make sure to turn them back on to avoid hangs.

Signed-off-by: Thierry Reding <treding@nvidia.com>

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This commit is contained in:

Thierry Reding 2014-07-07 15:32:53 +02:00

parent b298e98ef6

commit 9c0127004f

2 changed files with 43 additions and 3 deletions

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45

drivers/gpu/drm/tegra/dc.c

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1

drivers/gpu/drm/tegra/drm.h

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