From: MyungJoo Ham Date: Fri, 20 Apr 2012 05:16:25 +0000 (+0900) Subject: Extcon: support multiple states at a device. X-Git-Tag: v3.5-rc1~147^2~75 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=806d9dd71ff52ef09764585baaeec23afbb98560;p=pandora-kernel.git Extcon: support multiple states at a device. One switch device (e.g., MUIC(MAX8997, MAX77686, ...), and some 30-pin devices) may have multiple cables attached. For example, one 30-pin port may inhabit a USB cable, an HDMI cable, and a mic. Thus, one switch device requires multiple state bits each representing a type of cable. For such purpose, we use the 32bit state variable; thus, up to 32 different type of cables may be defined for a switch device. The list of possible cables is defined by the array of cable names in the switch_dev struct given to the class. Signed-off-by: Chanwoo Choi Signed-off-by: MyungJoo Ham Signed-off-by: Kyungmin Park -- Changes from V7 - Bugfixed in _call_per_cable() (incorrect nb) (Chanwoo Choi) - Compiler error in header for !CONFIG_EXTCON (Chanwoo Choi) Changes from V5 - Sysfs style reformed: subdirectory per cable. - Updated standard cable names - Removed unnecessary printf - Bugfixes after testing Changes from V4 - Bugfixes after more testing at Exynos4412 boards with userspace processses. Changes from V3 - Bugfixes after more testing at Exynos4412 boards. Changes from V2 - State can be stored by user - Documentation updated Changes from RFC - Switch is renamed to extcon - Added kerneldoc comments - Added APIs to support "standard" cable names - Added helper APIs to support notifier block registration with cable name. - Regrouped function list in the header file. Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed