piscreen-overlay: Add invert[x,y] and swapxy

Signed-off-by: Satadru Pramanik <[email protected]>

Author: satmandu

arch/arm/boot/dts/overlays/README

@@ -3694,6 +3694,12 @@ Params: speed                   Display SPI bus speed
         drm                     Select the DRM/KMS driver instead of the FBTFT
                                 one
 
+        invx                    Touchscreen inverted x axis
+
+        invy                    Touchscreen inverted y axis
+
+        swapxy                  Touchscreen swapped x y axis
+
 
 Name:   piscreen2r
 Info:   PiScreen 2 with resistive TP display by OzzMaker.com

arch/arm/boot/dts/overlays/piscreen-overlay.dts

@@ -103,5 +103,8 @@
 		xohms =		<&piscreen_ts>,"ti,x-plate-ohms;0";
 		drm =		<&piscreen>,"compatible=waveshare,rpi-lcd-35",
 				<&piscreen>,"reset-gpios:8=",<GPIO_ACTIVE_HIGH>;
+		invx =		<&piscreen_ts>,"touchscreen-inverted-x?";
+		invy =		<&piscreen_ts>,"touchscreen-inverted-y?";
+		swapxy =	<&piscreen_ts>,"touchscreen-swapped-x-y!";
 	};
 };