Hi Alex,
This is because VDEC and VENC are two separated IPs with their own
hardware resources and no links between both.
On future SoCs, VDEC can ship on its own, same for VENC.
Hoping that this clarify.
Best regards,
Hugues.
On 12/21/23 13:40, Alex Bee wrote:
Hi Hugues, Hi Nicolas,
is there any specific reason I'm not understanding / seeing why this is
added in two seperate vdec* / venc* files and not a single vpu* file? Is
it only for the seperate clocks (-names) / irqs (-names) / callbacks?
Those are defined per variant and perfectly fit in a single file holding
one vdec and one venc variant.
Alex
Am 21.12.23 um 09:47 schrieb Hugues Fruchet:
This patchset introduces support for VDEC video hardware decoder
and VENC video hardware encoder of STMicroelectronics STM32MP25
SoC series.
This initial support implements H264 decoding, VP8 decoding and
JPEG encoding.
This has been tested on STM32MP257F-EV1 evaluation board.
===========
= history =
===========
version 5:
- Precise that video decoding as been successfully tested up to
full HD
- Add Nicolas Dufresne reviewed-by
version 4:
- Fix comments from Nicolas about dropping encoder raw steps
version 3:
- Fix remarks from Krzysztof Kozlowski:
- drop "items", we keep simple enum in such case
- drop second example - it is the same as the first
- Drop unused node labels as suggested by Conor Dooley
- Revisit min/max resolutions as suggested by Nicolas Dufresne
version 2:
- Fix remarks from Krzysztof Kozlowski on v1:
- single video-codec binding for both VDEC/VENC
- get rid of "-names"
- use of generic node name "video-codec"
version 1:
- Initial submission
Hugues Fruchet (5):
dt-bindings: media: Document STM32MP25 VDEC & VENC video codecs
media: hantro: add support for STM32MP25 VDEC
media: hantro: add support for STM32MP25 VENC
arm64: dts: st: add video decoder support to stm32mp255
arm64: dts: st: add video encoder support to stm32mp255
.../media/st,stm32mp25-video-codec.yaml | 50 ++++++++
arch/arm64/boot/dts/st/stm32mp251.dtsi | 12 ++
arch/arm64/boot/dts/st/stm32mp255.dtsi | 17 +++
drivers/media/platform/verisilicon/Kconfig | 14 ++-
drivers/media/platform/verisilicon/Makefile | 4 +
.../media/platform/verisilicon/hantro_drv.c | 4 +
.../media/platform/verisilicon/hantro_hw.h | 2 +
.../platform/verisilicon/stm32mp25_vdec_hw.c | 92 ++++++++++++++
.../platform/verisilicon/stm32mp25_venc_hw.c | 115 ++++++++++++++++++
9 files changed, 307 insertions(+), 3 deletions(-)
create mode 100644
Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml
create mode 100644
drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
create mode 100644
drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
