IMX219: Add 4-lane option to the device tree overlay

Signed-off-by: Peyton Howe <[email protected]>

Author: peyton-howe

arch/arm/boot/dts/overlays/README

@@ -2795,6 +2795,8 @@ Params: rotation                Mounting rotation of the camera sensor (0 or
         cam0                    Adopt the default configuration for CAM0 on a
                                 Compute Module (CSI0, i2c_vc, and cam0_reg).
         vcm                     Configure a VCM focus drive on the sensor.
+        4lane                   Enable 4 CSI2 lanes. This requires a Compute
+                                Module (1, 3, 4, or 5) or Pi 5.
 
 
 Name:   imx258

arch/arm/boot/dts/overlays/imx219-overlay.dts

@@ -68,6 +68,21 @@
 		target = <&csi1>;
 		__dormant__ {
 			compatible = "brcm,bcm2835-unicam-legacy";
+	};
+
+	fragment@201 {
+		target = <&csi_ep>;
+		__dormant__ {
+			data-lanes = <1 2 3 4>;
+		};
+	};
+
+	fragment@202 {
+		target = <&cam_endpoint>;
+		__dormant__ {
+			data-lanes = <1 2 3 4>;
+			link-frequencies =
+					/bits/ 64 <363000000>;
 		};
 	};
 
@@ -83,6 +98,7 @@
 		       <&vcm>, "VANA-supply:0=", <&cam0_reg>;
 		vcm = <&vcm>, "status=okay",
 		      <&cam_node>,"lens-focus:0=", <&vcm>;
+		4lane = <0>, "+201+202";
 	};
 };