Hi Yuji,
On 4/28/22 15:11, Yuji Ishikawa wrote:
This series is the DNN image processing accelerator driver for Toshiba's ARM SoC, Visconti[0]. This provides DT binding documentation, device driver, MAINTAINER files.
The second patch "soc: visconti: Add Toshiba Visconti image processing accelerator common source" and the fourth patch "MAINTAINERS: ..." are the same as the ones in the preceding post for affine driver.
There appears to be no documentation whatsoever, unless I am missing something.
How is the uAPI supposed to be used? What does it do? What formats does it accept or produce?
If this processes images, then (as Laurent mentioned) this is more suitable as a V4L2 mem2mem driver.
See https://linuxtv.org/downloads/v4l-dvb-apis-new/userspace-api/v4l/dev-mem2mem... and the many drivers in drivers/media that use it (git grep v4l2-mem2mem.h).
But without any explanation whatsoever I have no idea what does or does not make sense.
Regards,
Hans
Best regards, Yuji
Yuji Ishikawa (4): dt-bindings: soc: visconti: Add Toshiba Visconti DNN image processing accelerator bindings soc: visconti: Add Toshiba Visconti image processing accelerator common source soc: visconti: Add Toshiba Visconti DNN image processing accelerator MAINTAINERS: Add entries for Toshiba Visconti DNN image processing accelerator
.../soc/visconti/toshiba,visconti-dnn.yaml | 54 ++ MAINTAINERS | 2 + drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 1 + drivers/soc/visconti/Kconfig | 7 + drivers/soc/visconti/Makefile | 8 + drivers/soc/visconti/dnn/Makefile | 6 + drivers/soc/visconti/dnn/dnn.c | 533 ++++++++++++++++++ drivers/soc/visconti/dnn/hwd_dnn.c | 183 ++++++ drivers/soc/visconti/dnn/hwd_dnn.h | 68 +++ drivers/soc/visconti/dnn/hwd_dnn_reg.h | 228 ++++++++ drivers/soc/visconti/ipa_common.c | 55 ++ drivers/soc/visconti/ipa_common.h | 18 + drivers/soc/visconti/uapi/dnn.h | 77 +++ drivers/soc/visconti/uapi/ipa.h | 88 +++ 15 files changed, 1329 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/visconti/toshiba,visconti-dnn.yaml create mode 100644 drivers/soc/visconti/Kconfig create mode 100644 drivers/soc/visconti/Makefile create mode 100644 drivers/soc/visconti/dnn/Makefile create mode 100644 drivers/soc/visconti/dnn/dnn.c create mode 100644 drivers/soc/visconti/dnn/hwd_dnn.c create mode 100644 drivers/soc/visconti/dnn/hwd_dnn.h create mode 100644 drivers/soc/visconti/dnn/hwd_dnn_reg.h create mode 100644 drivers/soc/visconti/ipa_common.c create mode 100644 drivers/soc/visconti/ipa_common.h create mode 100644 drivers/soc/visconti/uapi/dnn.h create mode 100644 drivers/soc/visconti/uapi/ipa.h