Dmitry Torokhov 10e3015263 drm/i915: cope with large i2c transfers ...

commit 9535c4757b upstream.

The hardware, according to the specs, is limited to 256 byte transfers,
and current driver has no protections in case users attempt to do larger
transfers. The code will just stomp over status register and mayhem
ensues.

Let's split larger transfers into digestable chunks. Doing this allows
Atmel MXT driver on Pixel 1 function properly (it hasn't since commit
9d8dc3e529 "Input: atmel_mxt_ts -
implement T44 message handling" which tries to consume multiple
touchscreen/touchpad reports in a single transaction).

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-05-06 21:56:27 +02:00

..

drm

drm/i915: cope with large i2c transfers

2015-05-06 21:56:27 +02:00

host1x

gpu: host1x: handle the correct # of syncpt regs

2014-06-07 13:25:30 -07:00

vga

fbcon: fix locking harder

2013-02-08 12:02:43 +10:00

Makefile

gpu: host1x: Add host1x driver

2013-04-22 12:32:40 +02:00