diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2017-12-03 13:06:57 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-02-26 18:21:40 +0300 |
| commit | 5e3e4cb5e24b92773b194aa90066170b12133bc6 (patch) | |
| tree | 23f5a91fe16e231854dde1344355e84c97f2ef7d /drivers/media | |
| parent | ed3056f015de90a53127d05c34d49fe3e04675a4 (diff) | |
| download | linux-5e3e4cb5e24b92773b194aa90066170b12133bc6.tar.xz | |
media: v4l: vsp1: Fix display stalls when requesting too many inputs
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>
Diffstat (limited to 'drivers/media')
| -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 7ce69f23f50a..ac85942162c1 100644 --- a/drivers/media/platform/vsp1/vsp1_drm.c +++ b/drivers/media/platform/vsp1/vsp1_drm.c @@ -530,6 +530,15 @@ 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; |