linux-kernel - [RFC PATCH V2 0/2] Add Xilinx DSI TX driver

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Date:   Tue, 11 Aug 2020 06:22:19 +0530
From:   Venkateshwar Rao Gannavarapu 
        <venkateshwar.rao.gannavarapu@...inx.com>
To:     hyun.kwon@...inx.com, laurent.pinchart@...asonboard.com,
        dri-devel@...ts.freedesktop.org
Cc:     airlied@...ux.ie, daniel@...ll.ch, linux-kernel@...r.kernel.org,
        sandipk@...inx.com, vgannava@...inx.com,
        Venkateshwar Rao Gannavarapu 
        <venkateshwar.rao.gannavarapu@...inx.com>
Subject: [RFC PATCH V2 0/2] Add Xilinx DSI TX driver

Xilinx DSI-TX subsytem consists of DSI controller core, AXI crossbar
and D-PHY as sub blocks. DSI TX subsystem driver supports multiple lanes
upto 4, RGB color formats, video mode and command modes.

DSI-TX driver is implemented as an encoder driver, as it going to be
the final node in display pipeline. Xilinx doesn't support any converter
logic to make this as bridge driver. Xilinx doesn't have such
use cases where end node can't be an encoder like DSI-TX. And Xilinx
encoder drivers represents a subsystem where individual blocks can't be
used with external components / encoders.

changes in v2:
 - converted bindings to .yaml format
 - updated compatible string with version number
 - addressed Laurent and Hyun's review comments
 - removed wrappers for enable/disable API's
 - few API's are inlined
 - fixes indent, extra spaces and alignments.
 - added generic long write command mode support

Venkateshwar Rao Gannavarapu (2):
  dt-bindings: display: xlnx: dsi: This add a DT binding for Xilinx DSI
    TX     subsystem.
  drm: xlnx: dsi: driver for Xilinx DSI TX subsystem

 .../devicetree/bindings/display/xlnx/xlnx,dsi.yaml | 147 +++++
 drivers/gpu/drm/xlnx/Kconfig                       |  11 +
 drivers/gpu/drm/xlnx/Makefile                      |   2 +
 drivers/gpu/drm/xlnx/xlnx_dsi.c                    | 701 +++++++++++++++++++++
 4 files changed, 861 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/xlnx/xlnx,dsi.yaml
 create mode 100644 drivers/gpu/drm/xlnx/xlnx_dsi.c

--
1.8.3.1

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