drm: mali-dp: Add support for writeback on DP550/DP650

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Mali-DP display processors are able to write the composition result to a
memory buffer via the SE.

Add entry points in the HAL for enabling/disabling this feature, and
implement support for it on DP650 and DP550. DP500 acts differently and
so is omitted from this change.

Changes since v3:
 - Fix missing vsync interrupt for DP550

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
[rebased and fixed conflicts]
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>

...

This commit is contained in:

Liviu Dudau 2017-03-29 17:42:34 +01:00

parent f29135ee4e

commit 846c87a068

3 changed files with 85 additions and 2 deletions

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55

drivers/gpu/drm/arm/malidp_hw.c

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17

drivers/gpu/drm/arm/malidp_hw.h

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15

drivers/gpu/drm/arm/malidp_regs.h

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