linux-kernel - [PATCH v5 0/5] arm/komeda: Add side_by

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Date:   Thu, 5 Dec 2019 08:35:37 +0000
From:   "james qian wang (Arm Technology China)" <james.qian.wang@....com>
To:     Mihail Atanassov <Mihail.Atanassov@....com>
CC:     "Jonathan Chai (Arm Technology China)" <Jonathan.Chai@....com>,
        "Julien Yin (Arm Technology China)" <Julien.Yin@....com>,
        "Thomas Sun (Arm Technology China)" <thomas.Sun@....com>,
        "Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
        "Tiannan Zhu (Arm Technology China)" <Tiannan.Zhu@....com>,
        nd <nd@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Ben Davis <Ben.Davis@....com>,
        "Oscar Zhang (Arm Technology China)" <Oscar.Zhang@....com>,
        "Channing Chen (Arm Technology China)" <Channing.Chen@....com>,
        "james qian wang (Arm Technology China)" <james.qian.wang@....com>
Subject: [PATCH v5 0/5] arm/komeda: Add side_by_side support

Hi: All

Komeda HW (two pipelines) can work on side by side mode, which splits the
internal display processing to two halves (LEFT/RIGHT) and handle them by
two pipelines separately and simultaneously.
And since one single pipeline only handles the half display frame, so the
main engine clock requirement can also 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

v3: Rebase
v5: Drop the patch: Expose side_by_side by sysfs/config_id

james qian wang (Arm Technology China) (5):
  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

 .../arm/display/komeda/d71/d71_component.c    |   4 +
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  |  54 ++--
 .../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 +-
 10 files changed, 419 insertions(+), 44 deletions(-)

-- 
2.20.1