On 24/06/2025 14:35, Daniel Scally wrote: > Hello all > > This series adds a driver for the Input Video Control Block in the > RZ/V2H SoC. The IVC block transmits input image data from memory to > the ISP core (on this SoC, a Mali-C55 ISP). The driver registers an > output video device for userspace to queue image buffers to. One > noteworthy feature is that - because it is not a part of the main ISP > drive - the IVC driver also registers a subdevice, which connects to > the media device created by the ISP driver through the usual v4l2 > async framework. This requires delaying the registration of the video > device until the .registered() callback of the subdevice, so that the > struct v4l2_dev pointer the subdevice connected to can be set to the > video device. > > To facilitate communication between the ISP driver and the IVC driver > we use the new media jobs framework that was posted recently [1]. The > series is also based on top of the latest version of the Mali-C55 > driver [2] and some updates to rzg2l-cru [3]. > > Note that this is not quite ready to merge, as there's an outstanding > bug that sometimes causes the driver to hang. The device should fire > two interrupts per frame; once on completion of data transmission and > once on expiration of the blanking period. The second interrupt seems > sometimes not to arrive, and at the moment the problem is worked > around with a timeout in rzv2h_ivc_send_next_buffer(). We're working > on that issue, but because the driver lends helpful context to the > media jobs and mali-c55 series (and is probably otherwise ready for > comment too) I wanted to post it. > > Thanks > Dan > > [1] https://lore.kernel.org/linux-media/20250624-media-jobs-v2-0-8e649b069a96@xxxxxxxxxxxxxxxx/T/#t > [2] https://lore.kernel.org/linux-media/20250624-c55-v10-0-54f3d4196990@xxxxxxxxxxxxxxxx/T/#t > [3] https://lore.kernel.org/linux-media/20250623-rzg2l-cru-v5-0-1663a8c6719a@xxxxxxxxxxxxxxxx/T/#t > > --- > Daniel Scally (3): > dt-bindings: media: Add bindings for the RZ/V2H IVC block > media: platform: Add Renesas Input Video Control block driver > MAINTAINERS: Add entry for rzv2h-ivc driver > > .../bindings/media/renesas,rzv2h-ivc.yaml | 103 ++++ > MAINTAINERS | 7 + > drivers/media/platform/renesas/Kconfig | 2 + > drivers/media/platform/renesas/Makefile | 1 + > drivers/media/platform/renesas/rzv2h-ivc/Kconfig | 15 + > drivers/media/platform/renesas/rzv2h-ivc/Makefile | 5 + > .../platform/renesas/rzv2h-ivc/rzv2h-ivc-dev.c | 237 +++++++ > .../platform/renesas/rzv2h-ivc/rzv2h-ivc-subdev.c | 379 ++++++++++++ > .../platform/renesas/rzv2h-ivc/rzv2h-ivc-video.c | 678 +++++++++++++++++++++ > .../media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h | 133 ++++ > 10 files changed, 1560 insertions(+) > --- > base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 > change-id: 20250624-ivc-833d24376167 That's b4, right? So where is the changelog with lore link to previous version? Best regards, Krzysztof
