diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2017-12-03 05:06:57 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-25 16:17:57 +0200 |
| commit | 93c72937a26bf899b10b2af6193f89f9c113577c (patch) | |
| tree | ee8f2730f052a28154051272d531f4d46b4359b3 /drivers/media/platform/vsp1 | |
| parent | d600eadf7d80edf8575462d8a0c117adbbceba52 (diff) | |
media: v4l: vsp1: Fix display stalls when requesting too many inputs
[ Upstream commit 5e3e4cb5e24b92773b194aa90066170b12133bc6 ]
Make sure we don't accept more inputs than the hardware can handle. This
is a temporary fix to avoid display stall, we need to instead allocate
the BRU or BRS to display pipelines dynamically based on the number of
planes they each use.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+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>
Diffstat (limited to 'drivers/media/platform/vsp1')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_drm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c index 4dfbeac8f42c..d3cd57f6ba52 100644 --- a/drivers/media/platform/vsp1/vsp1_drm.c +++ b/drivers/media/platform/vsp1/vsp1_drm.c @@ -504,6 +504,15 @@ void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index) struct vsp1_rwpf *rpf = vsp1->rpf[i]; unsigned int j; + /* + * Make sure we don't accept more inputs than the hardware can + * handle. This is a temporary fix to avoid display stall, we + * need to instead allocate the BRU or BRS to display pipelines + * dynamically based on the number of planes they each use. + */ + if (pipe->num_inputs >= pipe->bru->source_pad) + pipe->inputs[i] = NULL; + if (!pipe->inputs[i]) continue; |