Rename stmpgpio to gpio and add gpio-controller and interrupt-controller.
Rename stmpe_adc to adc. Move interrupt-controller and gpio-controller
under gpio node.

to fix below CHECK_DTBS warnings:

/home/lizhi/source/linux-upstream-pci/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dtb: stmpe1601@40 (st,stmpe1601): gpio: 'interrupt-controller' is a required property
	from schema $id: http://devicetree.org/schemas/mfd/st,stmpe.yaml#
/home/lizhi/source/linux-upstream-pci/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dtb: gpio (st,stmpe-gpio): 'interrupt-controller' is a required property
	from schema $id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#
/home/lizhi/source/linux-upstream-pci/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dtb: stmpe1601@44 (st,stmpe1601): gpio: 'interrupt-controller' is a required property
	from schema $id: http://devicetree.org/schemas/mfd/st,stmpe.yaml#
/home/lizhi/source/linux-upstream-pci/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dtb: gpio (st,stmpe-gpio): 'interrupt-controller' is a required property
	from schema $id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dts | 10 ++++++++--
 arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi  |  2 +-
 arch/arm/boot/dts/nxp/imx/imx6ul-isiot.dtsi     | 12 +++++++++---
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dts b/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dts
index 17fabff80e903f621814492a8f8b837c5721adbe..cbe580dec182e1428d39477fa800a6e5ae1fe20c 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6q-dmo-edmqmx6.dts
@@ -236,9 +236,12 @@ stmpe1: stmpe1601@40 {
 		vcc-supply = <&sw2_reg>;
 		vio-supply = <&sw2_reg>;
 
-		stmpe_gpio1: stmpe_gpio {
+		stmpe_gpio1: gpio {
 			#gpio-cells = <2>;
 			compatible = "st,stmpe-gpio";
+			gpio-controller;
+			#interrupt-cells = <2>;
+			interrupt-controller;
 		};
 	};
 
@@ -250,9 +253,12 @@ stmpe2: stmpe1601@44 {
 		vcc-supply = <&sw2_reg>;
 		vio-supply = <&sw2_reg>;
 
-		stmpe_gpio2: stmpe_gpio {
+		stmpe_gpio2: gpio {
 			#gpio-cells = <2>;
 			compatible = "st,stmpe-gpio";
+			gpio-controller;
+			#interrupt-cells = <2>;
+			interrupt-controller;
 		};
 	};
 
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi
index 419d85b5a66061d4389df5d42de626183c27a9e6..8a0ce250e57607ef157fe34859cf77f45f54935b 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi
@@ -589,7 +589,7 @@ stmpe_ts: touchscreen {
 			st,touch-det-delay = <5>;
 		};
 
-		stmpe_adc: stmpe_adc {
+		stmpe_adc: adc {
 			compatible = "st,stmpe-adc";
 			/* forbid to use ADC channels 3-0 (touch) */
 			st,norequest-mask = <0x0F>;
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-isiot.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ul-isiot.dtsi
index 4c09bb31269662adeb0b06991f45765935bef01e..e34c8cbe36aec682f46ffa128247bc47f3a6cab9 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ul-isiot.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6ul-isiot.dtsi
@@ -122,15 +122,21 @@ sgtl5000: codec@a {
 		VDDD-supply = <&reg_1p8v>;
 	};
 
-	stmpe811: gpio-expander@44 {
+	gpio-expander@44 {
 		compatible = "st,stmpe811";
 		reg = <0x44>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_stmpe>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
+
+		gpio {
+			compatible = "st,stmpe-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
 
 		stmpe: touchscreen {
 			compatible = "st,stmpe-ts";

-- 
2.34.1