linux-kernel - [PATCH 0/6] arm/komeda: Add side_by

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Message-ID: <20190704063011.7431-1-james.qian.wang@arm.com>
Date:   Thu, 4 Jul 2019 06:30:46 +0000
From:   "james qian wang (Arm Technology China)" <james.qian.wang@....com>
To:     Liviu Dudau <Liviu.Dudau@....com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        Brian Starkey <Brian.Starkey@....com>,
        "maarten.lankhorst@...ux.intel.com" 
        <maarten.lankhorst@...ux.intel.com>,
        "sean@...rly.run" <sean@...rly.run>
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>,
        Ayan Halder <Ayan.Halder@....com>,
        "Tiannan Zhu (Arm Technology China)" <Tiannan.Zhu@....com>,
        "Yiqi Kang (Arm Technology China)" <Yiqi.Kang@....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 0/6] arm/komeda: Add side_by_side support

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(-)

--
2.20.1