Hi, This series adds support for Renesas R-Car Gen3 VIN Up Down Scaler (UDS). Some VIN instances have access to a often shared UDS which can be used to scale the captured image up or down. If the scaler is shared it can only be used exclusively by one VIN at a time, switching in runtime and detection if a UDS are in use is supported in this series. If the user tries to start a capture on a VIN which would require the use of a scaler but that scaler is in use -EBUSY is returned. Patch 1/3 fix a format alignment issue found when working with UDS support. While patch 2/3 ands the UDS logic and 3/3 defines which VIN on which SoC have access to a UDS and how it's shared. The series is based on top of media-tree/master and is tested on R-Car Gen3 H3, M3-W, M3-N and Gen2 Koelsch (checking for regressions as Gen2 have no UDS). * Changes since v1 - Patch 1/3 have been replaced with a less strict version after good comments from Hans. Niklas Söderlund (3): rcar-vin: align width before stream start rcar-vin: add support for UDS (Up Down Scaler) rcar-vin: declare which VINs can use a Up Down Scaler (UDS) drivers/media/platform/rcar-vin/rcar-core.c | 18 +++ drivers/media/platform/rcar-vin/rcar-dma.c | 139 ++++++++++++++++++-- drivers/media/platform/rcar-vin/rcar-v4l2.c | 9 ++ drivers/media/platform/rcar-vin/rcar-vin.h | 24 ++++ 4 files changed, 180 insertions(+), 10 deletions(-) -- 2.19.0
