From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Kurtz Subject: [PATCH 00/14 v3] cleanup atmel_mxt_ts Date: Wed, 18 Apr 2012 21:21:45 +0800 Message-ID: <1334755319-21365-1-git-send-email-djkurtz@chromium.org> Return-path: Received: from mail-vx0-f202.google.com ([209.85.220.202]:33905 "EHLO mail-vx0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753202Ab2DRNWD (ORCPT ); Wed, 18 Apr 2012 09:22:03 -0400 Received: by vcbfk26 with SMTP id fk26so839773vcb.1 for ; Wed, 18 Apr 2012 06:22:02 -0700 (PDT) Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov , Henrik Rydberg , Joonyoung Shim , Nick Dyer , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Benson Leung , Yufeng Shen , Daniel Kurtz 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 v3: * 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 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 | 530 ++++++++++++------------------ 1 files changed, 218 insertions(+), 312 deletions(-) -- 1.7.7.3