drm/armada: use old_state for update tracking in atomic_update()

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Rather than tracking the register state, we can now check the previous
state and decide which registers need updating from that since the old
plane state indicates the previous state which was programmed into the
hardware.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

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This commit is contained in:

Russell King 2018-07-30 11:52:34 +01:00

parent 9c41467c9a

commit 3acea7b9b6

3 changed files with 144 additions and 173 deletions

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116

drivers/gpu/drm/armada/armada_crtc.c

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12

drivers/gpu/drm/armada/armada_crtc.h

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201

drivers/gpu/drm/armada/armada_overlay.c

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