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This patch support the extcon property for the external connector because each external connector might have the property according to the H/W design and the specific characteristics. - EXTCON_PROP_USB_[property name] - EXTCON_PROP_CHG_[property name] - EXTCON_PROP_JACK_[property name] - EXTCON_PROP_DISP_[property name] Add the new extcon APIs to get/set the property value as following: - int extcon_get_property(struct extcon_dev *edev, unsigned int id, unsigned int prop, union extcon_property_value *prop_val) - int extcon_set_property(struct extcon_dev *edev, unsigned int id, unsigned int prop, union extcon_property_value prop_val) Change-Id: I3e483c69b374dcd6b340c94671d237c21e862cd2 Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Chris Zhong <zyw@rock-chips.com> Tested-by: Guenter Roeck <groeck@chromium.org> Reviewed-by: Guenter Roeck <groeck@chromium.org> (cherry picked from commit f8ffa9daf942 git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git extcon-test) Signed-off-by: Guenter Roeck <groeck@chromium.org>