[PATCH v2 0/7] Add anx6345 DP/eDP bridge for Olimex Teres-I

From: Torsten Duwe <duwe@lst.de>
To: Maxime Ripard <maxime.ripard@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Andrzej Hajda <a.hajda@samsung.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Icenowy Zheng <icenowy@aosc.io>,
	Sean Paul <seanpaul@chromium.org>,
	Vasily Khoruzhick <anarsoul@gmail.com>,
	Harald Geyer <harald@ccbib.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: devicetree@vger.kernel.org, "Bcc:duwe"@lst.de,
	linux-arm-kernel@lists.infradead.org,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/7] Add anx6345 DP/eDP bridge for Olimex Teres-I
Date: Mon, 22 Jul 2019 17:04:14 +0200 (CEST)	[thread overview]
Message-ID: <20190722150414.9F97668B20@verein.lst.de> (raw)

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

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. No connector spec, no "quirks"[1],
  just plain EDID at work.

* 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

--------------
[1] I hesitate to associate information about a connected panel with that term.
    But should it be neccessary for maximum power saving (e.g. pinebooks),
    it would be good to have something here, regardless of nomenclature.

	Torsten

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