Patch "[media] v4l: vsp1: Register pipe with output WPF" has been added to the 4.9-stable tree

Patch "[media] v4l: vsp1: Register pipe with output WPF" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    [media] v4l: vsp1: Register pipe with output WPF

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     v4l-vsp1-register-pipe-with-output-wpf.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Sun Mar 18 16:55:33 CET 2018
From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Date: Mon, 27 Feb 2017 10:40:34 -0300
Subject: [media] v4l: vsp1: Register pipe with output WPF

From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>


[ Upstream commit 1531a208ed861e4bd287444f9466ffcf98383de2 ]

The DRM object does not register the pipe with the WPF object. This is
used internally throughout the driver as a means of accessing the pipe.
As such this breaks operations which require access to the pipe from WPF
interrupts.

Register the pipe inside the WPF object after it has been declared as
the output.

Fixes: ff7e97c94d9f ("[media] v4l: vsp1: Store pipeline pointer in rwpf")

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/vsp1/vsp1_drm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/media/platform/vsp1/vsp1_drm.c
+++ b/drivers/media/platform/vsp1/vsp1_drm.c
@@ -596,6 +596,7 @@ int vsp1_drm_init(struct vsp1_device *vs
 	pipe->bru = &vsp1->bru->entity;
 	pipe->lif = &vsp1->lif->entity;
 	pipe->output = vsp1->wpf[0];
+	pipe->output->pipe = pipe;
 
 	return 0;
 }


Patches currently in stable-queue which might be from kieran.bingham+renesas@ideasonboard.com are

queue-4.9/v4l-vsp1-prevent-multiple-streamon-race-commencing-pipeline-early.patch
queue-4.9/v4l-vsp1-register-pipe-with-output-wpf.patch
queue-4.9/media-vsp1-prevent-suspending-and-resuming-drm-pipelines.patch