mfd: axp20x: Add ADC cells for AXP20X and AXP22X PMICs

This adds the AXP20X/AXP22x ADCs driver to the mfd cells of the AXP209,
AXP221 and AXP223 MFD.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index e02edf1..46bdd23 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -590,6 +590,8 @@
 	}, {
 		.name		= "axp20x-regulator",
 	}, {
+		.name		= "axp20x-adc",
+	}, {
 		.name		= "axp20x-ac-power-supply",
 		.of_compatible	= "x-powers,axp202-ac-power-supply",
 		.num_resources	= ARRAY_SIZE(axp20x_ac_power_supply_resources),
@@ -610,6 +612,8 @@
 	}, {
 		.name		= "axp20x-regulator",
 	}, {
+		.name		= "axp22x-adc"
+	}, {
 		.name		= "axp20x-usb-power-supply",
 		.of_compatible	= "x-powers,axp221-usb-power-supply",
 		.num_resources	= ARRAY_SIZE(axp22x_usb_power_supply_resources),
@@ -623,6 +627,8 @@
 		.num_resources		= ARRAY_SIZE(axp22x_pek_resources),
 		.resources		= axp22x_pek_resources,
 	}, {
+		.name		= "axp22x-adc",
+	}, {
 		.name			= "axp20x-regulator",
 	}, {
 		.name		= "axp20x-usb-power-supply",