Custom Search

[PATCH 00/14 v3] cleanup atmel_mxt_ts

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

This patchset cleans up the atmel_mxt_ts touchscreen driver.
In particular, v3 implements the following:

1) sysfs
   a) fw_update only by root
   b) use sncprintf()
2) faster initialization
   a) read/write sets of registers using i2c block transactions
   b) fetch object descriptor table as a single i2c transaction
   c) fetch objects  as a set of i2c reads, one per object
   d) 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

  * Address Henrik's feedback:
    1) removed some more stack allocations
    2) use sncprintf() in sysfs handler

The patches were tested using an MXT224E.
They should apply cleanly to input/next.

Daniel Kurtz (14):
  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 - 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 - simplify event reporting
  Input: atmel_mxt_ts - cache T9 reportid range when reading object
  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 |  530 ++++++++++++------------------
 1 files changed, 218 insertions(+), 312 deletions(-)


To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at

[Linux Media Devel]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]    [Yosemite Photos]    [Free Online Dating]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux Wireless Networking]     [Linux Omap]

  Powered by Linux