linux-kernel - Re: [PATCH v7 0/5] media: renesas: vsp1: Add support for VSPX and IIF

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Message-ID: <20250423211409.GB5879@pendragon.ideasonboard.com>
Date: Thu, 24 Apr 2025 00:14:09 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
	Niklas Söderlund <niklas.soderlund@...natech.se>,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
Subject: Re: [PATCH v7 0/5] media: renesas: vsp1: Add support for VSPX and IIF

Hi Jacopo,

Thank you for the patches.

On Tue, Apr 01, 2025 at 04:22:00PM +0200, Jacopo Mondi wrote:
> The VSPX is a VSP2 function that reads data from
> external memory using two RPF instances and feed it to the ISP.
> 
> The VSPX includes an IIF unit (ISP InterFace) modeled in the vsp1 driver
> as a new, simple, entity type.
> 
> IIF is part of VSPX, a version of the VSP2 IP specialized for ISP
> interfacing. To prepare to support VSPX, support IIF first by
> introducing a new entity and by adjusting the RPF/WPF drivers to
> operate correctly when an IIF is present.

I think patches 1/5 to 4/5 are ready to be merged, but 5/5 needs more
work. Please let me know if I can take the first four patches in my tree
already.

> Signed-off-by: Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>
> ---
> Changes in v7:
> - Include VSPX driver in the series
> - Use existing VSP1 formats and remove patches extending formats on RPF
> - Rework VSPX driver to split jobs creation and scheduling in two
>   different API entry points
> - Fix VSPX stride using the user provided bytesperline and using the
>   buffer size for ConfigDMA buffers
> - Link to v6: https://lore.kernel.org/r/20250321-v4h-iif-v6-0-361e9043026a@ideasonboard.com
> 
> Changes in v6:
> - Little cosmetic change as suggested by Laurent
> - Collect tags
> - Link to v5: https://lore.kernel.org/r/20250319-v4h-iif-v5-0-0a10456d792c@ideasonboard.com
> 
> Changes in v5:
> - Drop additional empty line 5/6
> - Link to v4: https://lore.kernel.org/r/20250318-v4h-iif-v4-0-10ed4c41c195@ideasonboard.com
> 
> Changes in v4:
> - Fix SWAP bits for RAW10, RAW12 and RAW16
> - Link to v3: https://lore.kernel.org/r/20250317-v4h-iif-v3-0-63aab8982b50@ideasonboard.com
> 
> Changes in v3:
> - Drop 2/6 from v2
> - Add 5/7 to prepare for a new implementation of 6/7
> - Individual changelog per patch
> - Add 7/7
> - Link to v2: https://lore.kernel.org/r/20250224-v4h-iif-v2-0-0305e3c1fe2d@ideasonboard.com
> 
> Changes in v2:
> - Collect tags
> - Address review comments from Laurent, a lot of tiny changes here and
>   there but no major redesign worth an entry in the patchset changelog
> 
> ---
> Jacopo Mondi (5):
>       media: vsp1: Add support IIF ISP Interface
>       media: vsp1: dl: Use singleshot DL for VSPX
>       media: vsp1: wpf: Propagate vsp1_rwpf_init_ctrls()
>       media: vsp1: rwpf: Support operations with IIF
>       media: vsp1: Add VSPX support
> 
>  drivers/media/platform/renesas/vsp1/Makefile      |   3 +-
>  drivers/media/platform/renesas/vsp1/vsp1.h        |   4 +
>  drivers/media/platform/renesas/vsp1/vsp1_dl.c     |   7 +-
>  drivers/media/platform/renesas/vsp1/vsp1_drv.c    |  24 +-
>  drivers/media/platform/renesas/vsp1/vsp1_entity.c |   8 +
>  drivers/media/platform/renesas/vsp1/vsp1_entity.h |   1 +
>  drivers/media/platform/renesas/vsp1/vsp1_iif.c    | 121 +++++
>  drivers/media/platform/renesas/vsp1/vsp1_iif.h    |  29 ++
>  drivers/media/platform/renesas/vsp1/vsp1_pipe.c   |   1 +
>  drivers/media/platform/renesas/vsp1/vsp1_pipe.h   |   1 +
>  drivers/media/platform/renesas/vsp1/vsp1_regs.h   |   9 +
>  drivers/media/platform/renesas/vsp1/vsp1_rpf.c    |   9 +-
>  drivers/media/platform/renesas/vsp1/vsp1_vspx.c   | 604 ++++++++++++++++++++++
>  drivers/media/platform/renesas/vsp1/vsp1_vspx.h   |  86 +++
>  drivers/media/platform/renesas/vsp1/vsp1_wpf.c    |  24 +-
>  include/media/vsp1.h                              |  73 +++
>  16 files changed, 991 insertions(+), 13 deletions(-)
> ---
> base-commit: f2151613e040973c868d28c8b00885dfab69eb75
> change-id: 20250123-v4h-iif-a1dda640c95d

-- 
Regards,

Laurent Pinchart