WM831X_GPN_PULL_SHIFT   56 include/linux/mfd/wm831x/gpio.h #define WM831X_GPIO_PULL_NONE (0 << WM831X_GPN_PULL_SHIFT)
WM831X_GPN_PULL_SHIFT   57 include/linux/mfd/wm831x/gpio.h #define WM831X_GPIO_PULL_DOWN (1 << WM831X_GPN_PULL_SHIFT)
WM831X_GPN_PULL_SHIFT   58 include/linux/mfd/wm831x/gpio.h #define WM831X_GPIO_PULL_UP   (2 << WM831X_GPN_PULL_SHIFT)