linux-kernel - [PATCH v5 0/7] Add anx6345 DP/eDP bridge for Olimex Teres-I

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Message-Id: <20191104110400.F319F68BE1@verein.lst.de>
Date:   Mon, 4 Nov 2019 11:34:23 +0100
From:   Torsten Duwe <duwe@....de>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Icenowy Zheng <icenowy@...c.io>,
        Sean Paul <seanpaul@...omium.org>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Harald Geyer <harald@...ib.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v5 0/7] Add anx6345 DP/eDP bridge for Olimex Teres-I


ANX6345 LVTTL->eDP video bridge, driver with device tree bindings.

Changes since v4:

* enforce DT ports to be nodes and forbid additionalProperties.

Changes since v3:

* converted binding schema file to json-schema ("YAML")
  It now validates (itself and the dts) like a charm ;-)
  Input port0 is mandatory, output port1 is optional.

* Enric Balletbo i Serra waived analogix-anx6345 module ownership to icenowy
  <CAFqH_50s0J_NEevV9b5o-wq-bw+xGaUZ3WyhVDRZKyM2Yn-iVg@...l.gmail.com>
  Since they both agree, I won't interfere.

Changes from v2:

* use SPDX-IDs throughout

* removed the panel output again, as it was not what Maxime had in mind.
  At least the Teres-I does very well without.

* binding clarifications and cosmetic changes as suggested by Andrzej

Changes from v1:

* fixed up copyright information. Most code changes are only moves and thus
  retain copyright and module ownership. Even the new analogix-anx6345.c originates
  from the old 1495-line analogix-anx78xx.c, with 306 insertions and 987 deletions
  (ignoring the trivial anx78xx -> anx6345 replacements) 306 new vs. 508 old...

* fixed all minor formatting issues brought up

* merged previously separate new analogix_dp_i2c module into existing analogix_dp

* split additional defines into a preparatory patch

* renamed the factored-out common functions anx_aux_* -> anx_dp_aux_*, because
  anx_...aux_transfer was exported globally. Besides, it is now GPL-only exported.

* moved chip ID read into a separate function.

* keep the chip powered after a successful probe.
  (There's a good chance that this is the only display during boot!)

* updated the binding document: LVTTL input is now required, only the output side
  description is optional.

 Laurent: I have also looked into the drm_panel_bridge infrastructure,
 but it's not that trivial to convert these drivers to it.

Changes from the respective previous versions:

* the reset polarity is corrected in DT and the driver;
  things should be clearer now.

* as requested, add a panel (the known innolux,n116bge) and connect
  the ports.

* renamed dvdd?? to *-supply to match the established scheme

* trivial update to the #include list, to make it compile in 5.2

Icenowy Zheng (4):
  drm/bridge: move ANA78xx driver to analogix subdirectory
  drm/bridge: split some definitions of ANX78xx to dedicated headers
  drm/bridge: extract some Analogix I2C DP common code
  drm/bridge: Add Analogix anx6345 support

Torsten Duwe (3):
  drm/bridge: Prepare Analogix anx6345 support
  dt-bindings: Add ANX6345 DP/eDP transmitter binding
  arm64: dts: allwinner: a64: enable ANX6345 bridge on Teres-I

 .../bindings/display/bridge/anx6345.yaml           |  92 +++
 .../boot/dts/allwinner/sun50i-a64-teres-i.dts      |  45 +-
 drivers/gpu/drm/bridge/Kconfig                     |  10 -
 drivers/gpu/drm/bridge/Makefile                    |   4 +-
 drivers/gpu/drm/bridge/analogix-anx78xx.h          | 710 ------------------
 drivers/gpu/drm/bridge/analogix/Kconfig            |  22 +
 drivers/gpu/drm/bridge/analogix/Makefile           |   4 +-
 drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 793 +++++++++++++++++++++
 .../drm/bridge/{ => analogix}/analogix-anx78xx.c   | 146 +---
 drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h | 255 +++++++
 .../gpu/drm/bridge/analogix/analogix-i2c-dptx.c    | 165 +++++
 .../gpu/drm/bridge/analogix/analogix-i2c-dptx.h    | 258 +++++++
 .../drm/bridge/analogix/analogix-i2c-txcommon.h    | 236 ++++++
 13 files changed, 1868 insertions(+), 872 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.yaml
 delete mode 100644 drivers/gpu/drm/bridge/analogix-anx78xx.h
 create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
 rename drivers/gpu/drm/bridge/{ => analogix}/analogix-anx78xx.c (90%)
 create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h
 create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-i2c-dptx.c
 create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-i2c-dptx.h
 create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-i2c-txcommon.h

-- 
2.16.4