| From: |
| hoff.benjamin.k-AT-gmail.com |
| To: |
| linux-media-AT-vger.kernel.org |
| Subject: |
| [PATCH v3 0/2] media: pci: add AVMatrix HWS capture driver |
| Date: |
| Mon, 30 Mar 2026 15:56:53 -0400 |
| Message-ID: |
| <20260330195703.304466-1-hoff.benjamin.k@gmail.com> |
| Cc: |
| linux-kernel-AT-vger.kernel.org, mchehab-AT-kernel.org, hverkuil+cisco-AT-kernel.org, Ben Hoff <hoff.benjamin.k-AT-gmail.com> |
| Archive-link: |
| Article |
From: Ben Hoff <hoff.benjamin.k@gmail.com>
Hi,
This series adds an in-tree AVMatrix HWS PCIe capture driver and a
matching MAINTAINERS entry.
Compared to v2, this revision makes mode-change handling explicit and
removes the previously unvalidated power-present reporting path.
Changes since v2:
- keep scratch DMA allocation on a single probe-owned path
- avoid double-freeing V4L2 control handlers on register unwind
- drop the extra per-node resolution sysfs ABI
- turn live geometry changes into explicit SOURCE_CHANGE renegotiation
- report live DV timings and reject attempts to retime a live source
- stop advertising RESOLUTION source changes for fps-only updates
- keep live fps state across harmless S_FMT restarts
- stop exposing an unvalidated DV RX power-present signal
- clean the imported sources for checkpatch and W=1 builds
Validation:
- make -C /lib/modules/$(uname -r)/build M=drivers/media/pci/hws W=1 CONFIG_VIDEO_HWS=m modules
- scripts/checkpatch.pl --strict --file drivers/media/pci/hws/*
- v4l2-compliance 1.32.0: 51 tests succeeded, 0 failed, 1 warning
The remaining v4l2-compliance warning is:
- V4L2_CID_DV_RX_POWER_PRESENT not found for input 0
DV_RX_POWER_PRESENT is intentionally left unsupported in this revision
because current hardware evidence does not expose a validated
receiver-side power-detect signal distinct from active video presence.
Ben Hoff (2):
media: pci: add AVMatrix HWS capture driver
MAINTAINERS: add entry for AVMatrix HWS driver
MAINTAINERS | 6 +
drivers/media/pci/Kconfig | 1 +
drivers/media/pci/Makefile | 1 +
drivers/media/pci/hws/Kconfig | 12 +
drivers/media/pci/hws/Makefile | 4 +
drivers/media/pci/hws/hws.h | 174 +++
drivers/media/pci/hws/hws_irq.c | 271 +++++
drivers/media/pci/hws/hws_irq.h | 10 +
drivers/media/pci/hws/hws_pci.c | 864 ++++++++++++++
drivers/media/pci/hws/hws_reg.h | 136 +++
drivers/media/pci/hws/hws_v4l2_ioctl.c | 924 +++++++++++++++
drivers/media/pci/hws/hws_v4l2_ioctl.h | 36 +
drivers/media/pci/hws/hws_video.c | 1504 ++++++++++++++++++++++++
drivers/media/pci/hws/hws_video.h | 29 +
14 files changed, 3972 insertions(+)
create mode 100644 drivers/media/pci/hws/Kconfig
create mode 100644 drivers/media/pci/hws/Makefile
create mode 100644 drivers/media/pci/hws/hws.h
create mode 100644 drivers/media/pci/hws/hws_irq.c
create mode 100644 drivers/media/pci/hws/hws_irq.h
create mode 100644 drivers/media/pci/hws/hws_pci.c
create mode 100644 drivers/media/pci/hws/hws_reg.h
create mode 100644 drivers/media/pci/hws/hws_v4l2_ioctl.c
create mode 100644 drivers/media/pci/hws/hws_v4l2_ioctl.h
create mode 100644 drivers/media/pci/hws/hws_video.c
create mode 100644 drivers/media/pci/hws/hws_video.h
--
2.53.0
