[PATCH v4 0/4] Pine64 PinePhone keyboard support

From: Samuel Holland <samuel@sholland.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>, linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Ondrej Jirman <x@xff.cz>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	devicetree@vger.kernel.org, Samuel Holland <samuel@sholland.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Chen-Yu Tsai <wens@csie.org>,
	Colin Ian King <colin.king@intel.com>,
	David Gow <davidgow@google.com>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Marco Felsch <m.felsch@pengutronix.de>,
	Mattijs Korpershoek <mkorpershoek@baylibre.com>,
	Stephen Boyd <swboyd@chromium.org>,
	Yassine Oudjana <y.oudjana@protonmail.com>,
	"fengping.yu" <fengping.yu@mediatek.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH v4 0/4] Pine64 PinePhone keyboard support
Date: Sat, 18 Jun 2022 11:57:43 -0500	[thread overview]
Message-ID: <20220618165747.55709-1-samuel@sholland.org> (raw)

This series adds support for the official keyboard case for the Pine64
PinePhone and PinePhone Pro. This accessory contains a keyboard MCU and
an IP5209 power bank IC. The keyboard MCU firmware[0] is free software.
It exposes the keyboard scan matrix over I2C, and also provides commands
for SMBus access to the IP5209. In order to keep the IP5209 driver
(CONFIG_IP5XXX_POWER) generic, this is modeled as a child I2C bus.

[0]: https://megous.com/git/pinephone-keyboard/about/

Changes in v4:
 - Rebase to resolve MAINTAINERS merge conflict
 - Add missing newlines in error messages

Changes in v3:
 - Replace unevaluatedProperties with additionalProperties
 - Rename i2c-bus to i2c
 - Rename i2c-bus to i2c

Changes in v2:
 - Drop keymap DT properties
 - Add vbat-supply property
 - Fix missing key release events when FN state changes
 - Add VBAT consumer to ensure enough power is available for the MCU
 - Use a single fixed-size, fixed-contents keymap for both layers

Samuel Holland (4):
  dt-bindings: input: Add the PinePhone keyboard binding
  Input: pinephone-keyboard - Add PinePhone keyboard driver
  Input: pinephone-keyboard - Support the proxied I2C bus
  [DO NOT MERGE] arm64: dts: allwinner: pinephone: Add keyboard

 .../input/pine64,pinephone-keyboard.yaml      |  66 +++
 MAINTAINERS                                   |   6 +
 .../dts/allwinner/sun50i-a64-pinephone.dtsi   |  18 +
 drivers/input/keyboard/Kconfig                |  10 +
 drivers/input/keyboard/Makefile               |   1 +
 drivers/input/keyboard/pinephone-keyboard.c   | 438 ++++++++++++++++++
 6 files changed, 539 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml
 create mode 100644 drivers/input/keyboard/pinephone-keyboard.c

-- 
2.35.1

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