From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Wed, 7 Aug 2019 14:21:27 +0000 (-0300)
Subject: media: omap3isp: Don't set streaming state on random subdevs
X-Git-Tag: v4.9.195~67
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47be10a1c29f71b7816f67b60790c8794de71f42;p=thirdparty%2Fkernel%2Fstable.git

media: omap3isp: Don't set streaming state on random subdevs

[ Upstream commit 7ef57be07ac146e70535747797ef4aee0f06e9f9 ]

The streaming state should be set to the first upstream sub-device only,
not everywhere, for a sub-device driver itself knows how to best control
the streaming state of its own upstream sub-devices.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index a21b12c5c0853..ce651d3ca1b82 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -726,6 +726,10 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
 					s_stream, mode);
 			pipe->do_propagation = true;
 		}
+
+		/* Stop at the first external sub-device. */
+		if (subdev->dev != isp->dev)
+			break;
 	}
 
 	return 0;
@@ -840,6 +844,10 @@ static int isp_pipeline_disable(struct isp_pipeline *pipe)
 						      &subdev->entity);
 			failure = -ETIMEDOUT;
 		}
+
+		/* Stop at the first external sub-device. */
+		if (subdev->dev != isp->dev)
+			break;
 	}
 
 	return failure;