[PATCH RFC 0/4] Driver for Apple Z2 touchscreens.

[Sasha Finkelstein via B4 Relay]

Hi.

This series adds support for Apple touchscreens using the Z2 protocol.
Those are used as the primary touchscreen on mobile Apple devices, and for the
touchbar on laptops using the M-series chips. (T1/T2 laptops have a coprocessor
in charge of speaking Z2 to the touchbar).

Sending this as a RFC for now, since this series requires the SPI controller
support which is not upstream yet:
https://lore.kernel.org/all/20211212034726.26306-1-marcan@marcan.st/

Signed-off-by: Sasha Finkelstein <fnkl.kernel at gmail.com>
---
Sasha Finkelstein (4):
      dt-bindings: input: touchscreen: Add Z2 controller bindings.
      input: apple_z2: Add a driver for Apple Z2 touchscreens
      arm64: dts: apple: t8103: Add touchbar bindings
      MAINTAINERS: Add entries for Apple Z2 touchscreen driver

 .../input/touchscreen/apple,z2-touchscreen.yaml    |  81 ++++
 MAINTAINERS                                        |   2 +
 arch/arm64/boot/dts/apple/t8103-j293.dts           |  20 +
 arch/arm64/boot/dts/apple/t8103.dtsi               |  12 +
 drivers/input/touchscreen/Kconfig                  |  13 +
 drivers/input/touchscreen/Makefile                 |   1 +
 drivers/input/touchscreen/apple_z2.c               | 465 +++++++++++++++++++++
 7 files changed, 594 insertions(+)
---
base-commit: c9c3395d5e3dcc6daee66c6908354d47bf98cb0c
change-id: 20230223-z2-for-ml-18fb5246f4b8

Best regards,
-- 
Sasha Finkelstein <fnkl.kernel at gmail.com>