[PATCH 0/6] arm/komeda: Add side_by_side support

From: james qian wang (Arm Technology China)
Date: Thu Jul 04 2019 - 02:30:51 EST


Komeda HW can support side by side, which splits the internal display
processing to two single halves (LEFT/RIGHT) and handle them by two
pipelines separately and simultaneously.
And since a sinple pipeline only handles half the pixel processor, the
main engine clock requirement can be halved.

The data flow of side_by_side as blow:

slave.layer0 ->\ /-> slave.wb_layer -> mem.fb.right_part
... -> slave.compiz ->
slave.layer3 ->/ \-> slave.improcessor->
\ /-> output-link0
master.layer0 ->\ /-> master.improcessor ->\-> output-link1
... -> master.compiz ->
master.layer3 ->/ \-> master.wb_layer -> mem.fb.left_part

Depends on:
- https://patchwork.freedesktop.org/series/62280/

James Qian Wang (Arm Technology China) (6):
drm/komeda: Add side by side assembling
drm/komeda: Add side by side plane_state split
drm/komeda: Build side by side display output pipeline
drm/komeda: Add side by side support for writeback
drm/komeda: Update writeback signal for side_by_side
drm/komeda: Expose side_by_side by sysfs/config_id

.../drm/arm/display/include/malidp_product.h | 3 +-
.../arm/display/komeda/d71/d71_component.c | 4 +
.../gpu/drm/arm/display/komeda/komeda_crtc.c | 51 ++--
.../gpu/drm/arm/display/komeda/komeda_dev.c | 4 +
.../gpu/drm/arm/display/komeda/komeda_dev.h | 9 +
.../gpu/drm/arm/display/komeda/komeda_kms.h | 8 +
.../drm/arm/display/komeda/komeda_pipeline.c | 50 +++-
.../drm/arm/display/komeda/komeda_pipeline.h | 39 ++-
.../display/komeda/komeda_pipeline_state.c | 277 +++++++++++++++++-
.../gpu/drm/arm/display/komeda/komeda_plane.c | 7 +-
.../arm/display/komeda/komeda_wb_connector.c | 11 +-
11 files changed, 417 insertions(+), 46 deletions(-)

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2.20.1