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

Torsten Duwe
2019-11-04T11:04:06Z

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@mail.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

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2.16.4