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Subject[PATCH 0/5] ARM: Initial devicetree for Kobo Aura
Date
This series adds a devicetree for the i.MX507-based Kobo Aura e-book
reader, and fixes a few things in imx50.dtsi along the way.

A lot of functionality is still missing:
- poweroff/reboot, RTC, and battery monitoring support, as well as a PWM
channel for the display backlight are provided by a custom embedded
controller, which will be supported by a future patchset.
The EC driver will also tell the EC to keep the board powered on;
otherwise the EC will power the board off after about ten seconds
(presumably to avoid battery drain if the OS is missing or corrupted)
- The touchscreen controller, eKTF2132, currently doesn't have a
mainline driver.
- The e-paper display controller (EPDC) embedded in the i.MX50 SoC will
need a whole new DRM driver, devicetree bindings, etc.
- The TPS65185 PMIC, which generates the voltages necessary for driving
the E Ink panel, also needs a driver
- The backlight doesn't quite fit the existing pwm-backlight DT binding,
because it uses an additional GPIO to boost the brightness. This
requires some devicetree work
- Linux doesn't currently support suspend-to-ram on i.MX50

In order to keep the system running when CONFIG_PM is enabled, the
following fix is also required:
https://lore.kernel.org/lkml/20190318231737.8459-1-j.neuschaefer@gmx.net/

My own notes about this machine can be found here:
https://github.com/neuschaefer/linux/wiki/Kobo-Aura

Jonathan Neuschäfer (5):
dt-bindings: Add vendor prefix for Rakuten Kobo, Inc.
ARM: dts: imx50: Add Kobo Aura DTS
ARM: dts: imx50: Add PHY node for usbotg and adjust clocks
ARM: dts: imx50-kobo-aura: Enable USB support
ARM: dts: imx50: Fix the numbering of the I2C controllers

.../devicetree/bindings/vendor-prefixes.txt | 1 +
arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/imx50-kobo-aura.dts | 263 ++++++++++++++++++
arch/arm/boot/dts/imx50.dtsi | 14 +-
4 files changed, 279 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/boot/dts/imx50-kobo-aura.dts

--
2.20.1

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