On Fri, Jul 24, 2020 at 02:15:21PM +0200, Niklas Söderlund wrote: Hi, > Hi Kaaira, > > Thanks for your work. Thanks for yours :D > > On 2020-07-24 17:32:10 +0530, Kaaira Gupta wrote: > > This is version 2 of the patch series posted by Niklas for allowing > > multiple streams in VIMC. > > The original series can be found here: > > https://patchwork.kernel.org/cover/10948831/ > > > > This series adds support for two (or more) capture devices to be > > connected to the same sensors and run simultaneously. Each capture device > > can be started and stopped independent of each other. > > > > Patch 1/3 and 2/3 deals with solving the issues that arises once two > > capture devices can be part of the same pipeline. While 3/3 allows for > > two capture devices to be part of the same pipeline and thus allows for > > simultaneously use. > > I'm just curious if you are aware of this series? It would replace the > need for 1/3 and 2/3 of this series right? v3 of this series replaces the need for 1/3, but not the current version (ie v4). v4 of patch 2/5 removes the stream_counter that is needed to keep count of the calls to s_stream. Hence 1/3 becomes relevant again. > > 1. https://lore.kernel.org/linux-media/20200522075522.6190-1-dafna.hirschfeld@xxxxxxxxxxxxx/ > > > > > Changes since v1: > > - All three patches rebased on latest media-tree. > > Patch 3: > > - Search for an entity with a non-NULL pipe instead of searching > > for sensor. This terminates the search at output itself. > > > > Kaaira Gupta (3): > > media: vimc: Add usage count to subdevices > > media: vimc: Serialize vimc_streamer_s_stream() > > media: vimc: Join pipeline if one already exists > > > > .../media/test-drivers/vimc/vimc-capture.c | 35 ++++++++++++++++++- > > .../media/test-drivers/vimc/vimc-debayer.c | 8 +++++ > > drivers/media/test-drivers/vimc/vimc-scaler.c | 8 +++++ > > drivers/media/test-drivers/vimc/vimc-sensor.c | 9 ++++- > > .../media/test-drivers/vimc/vimc-streamer.c | 23 +++++++----- > > 5 files changed, 73 insertions(+), 10 deletions(-) > > > > -- > > 2.17.1 > > > > -- > Regards, > Niklas Söderlund