From 5dc4831dbb9a42e7ec14af4c8c010ef3d490eb6c Mon Sep 17 00:00:00 2001
From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Date: Fri, 4 Nov 2016 18:11:44 +0000
Subject: [PATCH 0/4] vsp1 partition algorithm improvements
Some updates and initial improvements for the VSP1 partition algorithm that
remove redundant processing and variables, reducing the processing done in
interrupt context slightly.
Patch 1 brings in some protection against invalid pipeline configurations that
are not supported by the partition algorithm on Gen3 hardware.
Patches 2,3 and 4 clean up the calculation of the partition sizes such that they
are only calculated once at streamon - and the partition windows are stored in
the vsp1_pipeline object.
Kieran Bingham (4):
v4l: vsp1: Implement partition algorithm restrictions
v4l: vsp1: Move vsp1_video_pipeline_setup_partitions() function
v4l: vsp1: Calculate partition sizes at stream start.
v4l: vsp1: Remove redundant context variables
drivers/media/platform/vsp1/vsp1_pipe.h | 10 ++-
drivers/media/platform/vsp1/vsp1_sru.c | 7 +-
drivers/media/platform/vsp1/vsp1_sru.h | 1 +
drivers/media/platform/vsp1/vsp1_video.c | 124 +++++++++++++++++++------------
4 files changed, 89 insertions(+), 53 deletions(-)
--
2.7.4
v4l: vsp1: Remove redundant context variables
The vsp1_pipe object context variables for div_size and
current_partition allowed state to be maintained through processing the
partitions during processing.
Now that the partition tables are calculated during stream on, there is
no requirement to store these variables in the pipe object.
Utilise local variables for the processing as required.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2 files changed
