Hi,
Some time ago, Robert tried to add VBUS detection to extcon-usb-gpio driver [1]. There was a discussion about patch #2 ("extcon: usb-gpio: add support for VBUS detection"). The final conclusion was that Chanwoo will add VBUS/ID notifiers [2]. That unfortunately never happened so this patchset is a follow up. 1. Add VBUS/ID cable state notifiers to extcon, so USB controllers could use it. 2. Add VBUS detection to extcon-usb-gpio driver. Some parts are based on old Robert's work, some are new, some are reworked. Best regards, Krzysztof [1] http://thread.gmane.org/gmane.linux.kernel/1923192/focus=1923193 [2] http://thread.gmane.org/gmane.linux.kernel/1923192/focus=1941152 Krzysztof Kozlowski (5): Revert "extcon: usb-gpio: switch to use pm wakeirq apis" extcon: Add raw VBUS and ID cable states extcon: usb-gpio: Add support for VBUS detection ARM: exynos_defconfig: Enable EXTCON_USB_GPIO for Odroid XU3 USB OTG ARM: dts: exynos: Add extcon-usb-gpio node for Odroid XU3 Robert Baldyga (2): Documentation: extcon: usb-gpio: update usb-gpio binding description extcon: usb-gpio: make debounce value configurable in devicetree .../devicetree/bindings/extcon/extcon-usb-gpio.txt | 28 ++++- arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts | 21 ++++ arch/arm/boot/dts/exynos5422-odroidxu3.dts | 21 ++++ arch/arm/configs/exynos_defconfig | 1 + drivers/extcon/extcon-usb-gpio.c | 138 +++++++++++++++++---- drivers/extcon/extcon.c | 3 + include/linux/extcon.h | 8 +- 7 files changed, 190 insertions(+), 30 deletions(-) -- 1.9.1