pinctrl: Add support for PM8916 GPIO's and MPP's

Add compatible string definitions and supported pin functions.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
index 0f11a26..b2d2221 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -810,6 +810,7 @@
 }
 
 static const struct of_device_id pmic_gpio_of_match[] = {
+	{ .compatible = "qcom,pm8916-gpio" },	/* 4 GPIO's */
 	{ .compatible = "qcom,pm8941-gpio" },	/* 36 GPIO's */
 	{ .compatible = "qcom,pma8084-gpio" },	/* 22 GPIO's */
 	{ },