Add compatible string definitions and supported pin functions.
Signed-off-by: NIvan T. Ivanov <ivan.ivanov@linaro.org>
Acked-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This introduced the device tree bindings for the GPIO block found
in PMIC's from Qualcomm.
Signed-off-by: NBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>