media: renesas-ceu: Use default mbus settings

As the v4l2-fwnode now allows drivers to set defaults, and eventually
override them by specifying properties in DTS, use defaults for the CEU
driver.

Also remove endpoint properties from the gr-peach-audiocamerashield as
they match the defaults now specified in the driver code
(h/vsync-active and bus-width) or are not relevant to the interface
as they cannot be configured (pclk-sample).

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

arch/arm/boot/dts/gr-peach-audiocamerashield.dtsi

@@ -69,10 +69,6 @@
 
 	port {
 		ceu_in: endpoint {
-			hsync-active = <1>;
-			vsync-active = <1>;
-			bus-width = <8>;
-			pclk-sample = <1>;
 			remote-endpoint = <&mt9v111_out>;
 		};
 	};

drivers/media/platform/renesas-ceu.c

@@ -1551,7 +1551,16 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 		return ret;
 
 	for (i = 0; i < num_ep; i++) {
-		struct v4l2_fwnode_endpoint fw_ep = { .bus_type = 0 };
+		struct v4l2_fwnode_endpoint fw_ep = {
+			.bus_type = V4L2_MBUS_PARALLEL,
+			.bus = {
+				.parallel = {
+					.flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH |
+						 V4L2_MBUS_VSYNC_ACTIVE_HIGH,
+					.bus_width = 8,
+				},
+			},
+		};
 
 		ep = of_graph_get_endpoint_by_regs(of, 0, i);
 		if (!ep) {
@@ -1564,14 +1573,7 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 		ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &fw_ep);
 		if (ret) {
 			dev_err(ceudev->dev,
-				"Unable to parse endpoint #%u.\n", i);
-			goto error_cleanup;
-		}
-
-		if (fw_ep.bus_type != V4L2_MBUS_PARALLEL) {
-			dev_err(ceudev->dev,
-				"Only parallel input supported.\n");
-			ret = -EINVAL;
+				"Unable to parse endpoint #%u: %d.\n", i, ret);
 			goto error_cleanup;
 		}