diff mbox

[RFC,11/17] omap3isp: Implement validate_pipeline

Message ID 1324412889-17961-11-git-send-email-sakari.ailus@maxwell.research.nokia.com (mailing list archive)
State RFC, archived
Headers

Commit Message

Sakari Ailus Dec. 20, 2011, 8:28 p.m. UTC 
  From: Sakari Ailus <sakari.ailus@iki.fi>

Validate pipeline of any external entity connected to the ISP driver.
The validation of the pipeline for the part that involves links inside the
domain of another driver must be done by that very driver.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
---
 drivers/media/video/omap3isp/ispvideo.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/drivers/media/video/omap3isp/ispvideo.c b/drivers/media/video/omap3isp/ispvideo.c
index f229057..0568234 100644
--- a/drivers/media/video/omap3isp/ispvideo.c
+++ b/drivers/media/video/omap3isp/ispvideo.c
@@ -355,6 +355,18 @@  static int isp_video_validate_pipeline(struct isp_pipeline *pipe)
 		    fmt_source.format.height != fmt_sink.format.height)
 			return -EPIPE;
 
+		if (subdev->host_priv) {
+			/*
+			 * host_priv != NULL: this is a sensor. Issue
+			 * validate_pipeline. We're at our end of the
+			 * pipeline so we quit now.
+			 */
+			ret = v4l2_subdev_call(subdev, pad, validate_pipeline);
+			if (ret < 0 && ret != -ENOIOCTLCMD)
+				return -EPIPE;
+			break;
+		}
+
 		if (shifter_link) {
 			unsigned int parallel_shift = 0;
 			if (isp->isp_ccdc.input == CCDC_INPUT_PARALLEL) {