ARM: tegra: Add stmpe-adc DT node to Toradex T30 modules

Add the stmpe-adc DT node as found on Toradex T30 modules
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-apalis-v1.1.dtsi

@@ -994,11 +994,17 @@ touchscreen@41 {
 			id = <0>;
 			blocks = <0x5>;
 			irq-trigger = <0x1>;
+			/* 3.25 MHz ADC clock speed */
+			st,adc-freq = <1>;
+			/* 12-bit ADC */
+			st,mod-12b = <1>;
+			/* internal ADC reference */
+			st,ref-sel = <0>;
+			/* ADC converstion time: 80 clocks */
+			st,sample-time = <4>;
 
 			stmpe_touchscreen {
 				compatible = "st,stmpe-ts";
-				/* 3.25 MHz ADC clock speed */
-				st,adc-freq = <1>;
 				/* 8 sample average control */
 				st,ave-ctrl = <3>;
 				/* 7 length fractional part in z */
@@ -1008,17 +1014,17 @@ stmpe_touchscreen {
 				 * current limit value
 				 */
 				st,i-drive = <1>;
-				/* 12-bit ADC */
-				st,mod-12b = <1>;
-				/* internal ADC reference */
-				st,ref-sel = <0>;
-				/* ADC converstion time: 80 clocks */
-				st,sample-time = <4>;
 				/* 1 ms panel driver settling time */
 				st,settling = <3>;
 				/* 5 ms touch detect interrupt delay */
 				st,touch-det-delay = <5>;
 			};
+
+			stmpe_adc {
+				compatible = "st,stmpe-adc";
+				/* forbid to use ADC channels 3-0 (touch) */
+				st,norequest-mask = <0x0F>;
+			};
 		};
 
 		/*

arch/arm/boot/dts/tegra30-apalis.dtsi

@@ -976,11 +976,17 @@ touchscreen@41 {
 			id = <0>;
 			blocks = <0x5>;
 			irq-trigger = <0x1>;
+			/* 3.25 MHz ADC clock speed */
+			st,adc-freq = <1>;
+			/* 12-bit ADC */
+			st,mod-12b = <1>;
+			/* internal ADC reference */
+			st,ref-sel = <0>;
+			/* ADC converstion time: 80 clocks */
+			st,sample-time = <4>;
 
 			stmpe_touchscreen {
 				compatible = "st,stmpe-ts";
-				/* 3.25 MHz ADC clock speed */
-				st,adc-freq = <1>;
 				/* 8 sample average control */
 				st,ave-ctrl = <3>;
 				/* 7 length fractional part in z */
@@ -990,17 +996,17 @@ stmpe_touchscreen {
 				 * current limit value
 				 */
 				st,i-drive = <1>;
-				/* 12-bit ADC */
-				st,mod-12b = <1>;
-				/* internal ADC reference */
-				st,ref-sel = <0>;
-				/* ADC converstion time: 80 clocks */
-				st,sample-time = <4>;
 				/* 1 ms panel driver settling time */
 				st,settling = <3>;
 				/* 5 ms touch detect interrupt delay */
 				st,touch-det-delay = <5>;
 			};
+
+			stmpe_adc {
+				compatible = "st,stmpe-adc";
+				/* forbid to use ADC channels 3-0 (touch) */
+				st,norequest-mask = <0x0F>;
+			};
 		};
 
 		/*

arch/arm/boot/dts/tegra30-colibri.dtsi

@@ -845,11 +845,18 @@ touchscreen@41 {
 			id = <0>;
 			blocks = <0x5>;
 			irq-trigger = <0x1>;
+			/* 3.25 MHz ADC clock speed */
+			st,adc-freq = <1>;
+			/* 12-bit ADC */
+			st,mod-12b = <1>;
+			/* internal ADC reference */
+			st,ref-sel = <0>;
+			/* ADC converstion time: 80 clocks */
+			st,sample-time = <4>;
+			/* forbid to use ADC channels 3-0 (touch) */
 
 			stmpe_touchscreen {
 				compatible = "st,stmpe-ts";
-				/* 3.25 MHz ADC clock speed */
-				st,adc-freq = <1>;
 				/* 8 sample average control */
 				st,ave-ctrl = <3>;
 				/* 7 length fractional part in z */
@@ -859,17 +866,16 @@ stmpe_touchscreen {
 				 * current limit value
 				 */
 				st,i-drive = <1>;
-				/* 12-bit ADC */
-				st,mod-12b = <1>;
-				/* internal ADC reference */
-				st,ref-sel = <0>;
-				/* ADC converstion time: 80 clocks */
-				st,sample-time = <4>;
 				/* 1 ms panel driver settling time */
 				st,settling = <3>;
 				/* 5 ms touch detect interrupt delay */
 				st,touch-det-delay = <5>;
 			};
+
+			stmpe_adc {
+				compatible = "st,stmpe-adc";
+				st,norequest-mask = <0x0F>;
+			};
 		};
 
 		/*