linux-kernel - [PATCH v10 0/5] media: atmel: atmel-isc: implement media controller

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Message-ID: <20220503095127.48710-1-eugen.hristev@microchip.com>
Date:   Tue, 3 May 2022 12:51:22 +0300
From:   Eugen Hristev <eugen.hristev@...rochip.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-media@...r.kernel.org>, <hverkuil@...all.nl>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <claudiu.beznea@...rochip.com>, <nicolas.ferre@...rochip.com>,
        <jacopo@...ndi.org>, Eugen Hristev <eugen.hristev@...rochip.com>
Subject: [PATCH v10 0/5] media: atmel: atmel-isc: implement media controller

This series is a split from the series :
[PATCH v9 00/13] media: atmel: atmel-isc: implement media controller
and it includes the media controller part.
previous fixes were sent on a different patch series.

As discussed on the ML, moving forward with having the media link validate at
start/stop streaming call.
I will test the patch :
[RFC PATCHv2] vb2: add support for (un)prepare_streaming queue ops
afterwards, but that patch requires moving my logic to the new vb2 callbacks.

Full series history:

Changes in v10:
-> split the series into this first fixes part.
-> moved IO_MC addition from first patch to the second patch on the driver changes
-> edited commit messages
-> DT nodes now disabled by default.

Changes in v9:
-> kernel robot reported isc_link_validate is not static, changed to static.

Changes in v8:
-> scaler: modified crop bounds to have the exact source size

Changes in v7:
-> scaler: modified crop bounds to have maximum isc size
-> format propagation: did small changes as per Jacopo review


Changes in v6:
-> worked a bit on scaler, added try crop and other changes as per Jacopo review
-> worked on isc-base enum_fmt , reworked as per Jacopo review

Changes in v5:
-> removed patch that removed the 'stop' variable as it was still required
-> added two new trivial patches
-> reworked some parts of the scaler and format propagation after discussions with Jacopo


Changes in v4:
-> as reviewed by Hans, added new patch to remove the 'stop' variable and reworked
one patch that was using it
-> as reviewed by Jacopo, reworked some parts of the media controller implementation


Changes in v3:
- change in bindings, small fixes in csi2dc driver and conversion to mc
for the isc-base.
- removed some MAINTAINERS patches and used patterns in MAINTAINERS

Changes in v2:
- integrated many changes suggested by Jacopo in the review of the v1 series.
- add a few new patches

Eugen Hristev (5):
  media: atmel: atmel-isc: prepare for media controller support
  media: atmel: atmel-isc: implement media controller
  ARM: dts: at91: sama7g5: add nodes for video capture
  ARM: configs: at91: sama7: add xisc and csi2dc
  ARM: multi_v7_defconfig: add atmel video pipeline modules

 arch/arm/boot/dts/sama7g5.dtsi                |  51 ++
 arch/arm/configs/multi_v7_defconfig           |   3 +
 arch/arm/configs/sama7_defconfig              |   2 +
 drivers/media/platform/atmel/Makefile         |   2 +-
 drivers/media/platform/atmel/atmel-isc-base.c | 485 +++++++++---------
 .../media/platform/atmel/atmel-isc-scaler.c   | 267 ++++++++++
 drivers/media/platform/atmel/atmel-isc.h      |  50 +-
 .../media/platform/atmel/atmel-sama5d2-isc.c  |  34 +-
 .../media/platform/atmel/atmel-sama7g5-isc.c  |  32 +-
 9 files changed, 685 insertions(+), 241 deletions(-)
 create mode 100644 drivers/media/platform/atmel/atmel-isc-scaler.c

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2.25.1