This changeset adds a driver for the SPI keyboard and trackpad on recent MacBook's and MacBook Pro's. The driver has seen a fair amount of use over the last 2 years (basically anybody running linux on these machines), with only relatively small changes in the last year or so. For those interested, the driver development has been hosted at https://github.com/cb22/macbook12-spi-driver/ (as well as my clone at https://github.com/roadrunner2/macbook12-spi-driver/).
The first patch is just a placeholder for now and is provided in case somebody wants to compile the driver while it's being reviewed here; the real patch has been submitted to dri-devel and is being discussed there, with the intent/hope that I can get an Ack and permission to merge it through the input subsystem tree here as part of this patch series. The second and third patches add a new dev_print_hex_dump() helper as the dev_xxx() analog of print_hex_dump(). The fourth patch finally contains the new applespi driver. Changes in v3: Applied all feedback from review by Andy Shevchenko, including: - move dev_print_hex_dump() to driver core - clean up keyboard modifier bits testing/modifying - remove DEV() macro - minor style issues The full set of changes to applespi can be viewed at https://github.com/roadrunner2/macbook12-spi-driver/ as individual commits f832caa..3a6262e in the upstreaming-review branch. Ronald Tschalär (4): drm/bridge: sil_sii8620: depend on INPUT instead of selecting it. lib/hexdump.c: factor out generic hexdump formatting for reuse. driver core: add dev_print_hex_dump() logging function. Input: add Apple SPI keyboard and trackpad driver. drivers/base/core.c | 43 + drivers/gpu/drm/bridge/Kconfig | 2 +- drivers/input/keyboard/Kconfig | 15 + drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/applespi.c | 1988 +++++++++++++++++++++++++++++ include/linux/device.h | 15 + include/linux/printk.h | 12 + lib/hexdump.c | 95 +- 8 files changed, 2146 insertions(+), 25 deletions(-) create mode 100644 drivers/input/keyboard/applespi.c -- 2.20.1
