drm/omap: venc: List both PAL and NTSC modes

The TV encoder supports both PAL and NTSC modes, but when queried for
the list of modes it supports, only the currently selected mode is
reported. Fix it and report the two modes unconditionally.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/dss/venc.c

@@ -551,14 +551,27 @@ static void venc_display_disable(struct omap_dss_device *dssdev)
 static int venc_get_modes(struct omap_dss_device *dssdev,
 			  struct drm_connector *connector)
 {
-	struct venc_device *venc = dssdev_to_venc(dssdev);
-	int r;
+	static const struct videomode *modes[] = {
+		&omap_dss_pal_vm,
+		&omap_dss_ntsc_vm,
+	};
+	unsigned int i;
 
-	mutex_lock(&venc->venc_lock);
-	r = omapdss_display_get_modes(connector, &venc->vm);
-	mutex_unlock(&venc->venc_lock);
+	for (i = 0; i < ARRAY_SIZE(modes); ++i) {
+		struct drm_display_mode *mode;
 
-	return r;
+		mode = drm_mode_create(connector->dev);
+		if (!mode)
+			return i;
+
+		drm_display_mode_from_videomode(modes[i], mode);
+
+		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+		drm_mode_set_name(mode);
+		drm_mode_probed_add(connector, mode);
+	}
+
+	return ARRAY_SIZE(modes);
 }
 
 static void venc_set_timings(struct omap_dss_device *dssdev,