[PATCH 00/16 v2] cleanup atmel_mxt_ts

[Daniel Kurtz]

This patchset cleans up the atmel_mxt_ts touchscreen driver.
In particular, v2 implements the following:

1) sysfs
   a) fw_update only by root
2) faster initialization
   a) read/write sets of registers using i2c block transactions
   b) fetch object table as a set of i2c reads, one per object
   c) write config data as a set of i2c writes, one per object
3) faster interrupt processing & initialization times
   a) cache important values at init instead of computing in isr
   b) don't read message checksum byte (which isn't even enabled in fw)
4) more correct MT-B support
   a) send all (changed) contacts in a single EV_SYN/SYN_REPORT

v2:
  * Writable config via sysfs has been removed to resolve possible
    conflict with Nick Dyer's implementation.
  * Using T44 has been removed from this patchset, hopefully it can
    be reexamined after most of these patches are accepted.

The patches were tested using an MXT224E.

Daniel Kurtz (16):
  Input: atmel_mxt_ts - use CONFIG_PM_SLEEP
  Input: atmel_mxt_ts - only allow root to update firmware
  Input: atmel_mxt_ts - refactor mxt_read/write_reg to take a length
  Input: atmel_mxt_ts - store actual size and instance
  Input: atmel_mxt_ts - verify object size in mxt_write_object
  Input: atmel_mxt_ts - do not read extra (checksum) byte
  Input: atmel_mxt_ts - dump each message on just 1 line
  Input: atmel_mxt_ts - refactor mxt_object_show
  Input: atmel_mxt_ts - optimize writing of object table entries
  Input: atmel_mxt_ts - refactor get info
  Input: atmel_mxt_ts - refactor reading object table
  Input: atmel_mxt_ts - simplify event reporting
  Input: atmel_mxt_ts - cache T9 reportid range when reading object
    table
  Input: atmel_mxt_ts - parse vector field of data packets
  Input: atmel_mxt_ts - send all MT-B slots in one input report
  Input: atmel_mxt_ts - parse T6 reports

 drivers/input/touchscreen/atmel_mxt_ts.c |  477 ++++++++++++------------------
 1 files changed, 191 insertions(+), 286 deletions(-)

-- 
1.7.7.3

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