forked from Minki/linux
0526364ce4
Droid4's touchscreen can be used with mainline's maxtouch driver. The touchscreen's lower area is used for four soft buttons (KEY_MENU, KEY_HOME, KEY_BACK, KEY_SEARCH), but that does not seem to be currently supported by the mainline kernel. The mxt224 configuration can be saved with "mxt-app" for the kernel to load. It can be saved after the first boot with: # mxt-app -d i2c-dev:1-004a --save /lib/firmware/maxtouch.cfg Where the mxt-app can be found at: https://github.com/atmel-maxtouch/mxt-app The firmware for the droid 4 mxt224 comes with GPLv2 license in the Motorola Linux kernel sources. This firmware can be dumped out with "droid4-touchscreen-firmware" program at: https://github.com/tmlind/droid4-touchscreen-firmware The related LCD patches are still pending, but when merged, the touchscreen can be rotated in X with something like: # xrandr --output DSI-1 --rotate right # xinput set-prop 6 'Coordinate Transformation Matrix' \ 0 1 0 -1 0 1 0 0 1 For now, we rely on a gpio-hog but later on we can add the reset gpio handling to the driver and have it load the maxtouch.cfg and maxtouch.fw on boot. This patch is based on combined similar patches done by me and Sebastian. Signed-off-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> |
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