[PATCH 3/3] video: ipuv3: imx-ldb: Support video modes in ldb node

[Sascha Hauer]

We used to support video modes directly in the ldb device node, that
was lost in: 5bda17e video: ipuv3: Replace ipu_output with VPL.
Add this support back.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 drivers/video/imx-ipu-v3/imx-ldb.c | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/drivers/video/imx-ipu-v3/imx-ldb.c b/drivers/video/imx-ipu-v3/imx-ldb.c
index 2f49ed2..f502f19 100644
--- a/drivers/video/imx-ipu-v3/imx-ldb.c
+++ b/drivers/video/imx-ipu-v3/imx-ldb.c
@@ -282,9 +282,18 @@ static int imx_ldb_ioctl(struct vpl *vpl, unsigned int port,
 			V4L2_PIX_FMT_RGB24 : V4L2_PIX_FMT_BGR666;
 
 		return 0;
-	default:
-		return vpl_ioctl(vpl, imx_ldb_ch->output_port, cmd, data);
+	case VPL_GET_VIDEOMODES:
+		if (imx_ldb_ch->modes) {
+			struct display_timings *timings = data;
+			timings->num_modes = imx_ldb_ch->modes->num_modes;
+			timings->modes = imx_ldb_ch->modes->modes;
+			return 0;
+		}
+
+		break;
 	}
+
+	return vpl_ioctl(vpl, imx_ldb_ch->output_port, cmd, data);
 }
 
 static int imx_ldb_probe(struct device_d *dev)
@@ -329,8 +338,15 @@ static int imx_ldb_probe(struct device_d *dev)
 		/* The output port is port at 4 with mux or port at 1 without mux */
 		port = of_graph_get_port_by_id(child, channel->output_port);
 		if (!port) {
-			dev_warn(dev, "No port found for %s\n", child->full_name);
-			continue;
+			/*
+			 * No output port found, see if we can get modes from the
+			 * ldb node.
+			 */
+			channel->modes = of_get_display_timings(child);
+			if (!channel->modes) {
+				dev_warn(dev, "No port found for %s\n", child->full_name);
+				continue;
+			}
 		}
 
 		channel->vpl.node = child;
-- 
2.5.1