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[v3,0/7] rcar-isp: Prepare for ISP core support

Message ID 20250423163113.2961049-1-niklas.soderlund+renesas@ragnatech.se
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Series rcar-isp: Prepare for ISP core support | expand

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Niklas Söderlund April 23, 2025, 4:31 p.m. UTC 
Hello,

This series prepares for adding support for the ISP core functionality
found on some R-Car ISP instances. No core support is however added in
this series, the focus is to get the easy changes out of the way to
avoid conflicts of fixes and new features being added in parallel on top
of this.

Patch 1/7 extends the dt-bindings to allow describing both the CSISP and
ISPCORE blocks. Patch 2/7, 3/7 and 4/7 updates the existing bindings to
match the new style. While the change breaks the dt-bindings the driver
is compatible with both styles.

Patch 5/7 prepares for the addition of the ISP core functions that will
span multiple files by moving the driver implementation from a single C
file to a directory where it can grow. The intent is to get this out of
the way without bikeshedding the real ISP core work so fixes and such
can be based on the new file structure as early as possible.

Patch 6/7 and 7/7 prepares the driver for dealing with two regions for
when the ISP core work is integrated.

There is no functional gain in this series apart from correctly
describing the hardware in dt.

See individual patches for changelog.

Niklas Söderlund (7):
  dt-bindings: media: renesas,isp: Add ISP core function block
  arm64: dts: renesas: r8a779a0: Add ISP core function block
  arm64: dts: renesas: r8a779g0: Add ISP core function block
  arm64: dts: renesas: r8a779h0: Add ISP core function block
  media: rcar-isp: Move driver to own directory
  media: rcar-isp: Rename base register variable
  media: rcar-isp: Parse named cs memory region

 .../bindings/media/renesas,isp.yaml           | 63 ++++++++++++++++---
 MAINTAINERS                                   |  2 +-
 arch/arm64/boot/dts/renesas/r8a779a0.dtsi     | 60 +++++++++++++-----
 arch/arm64/boot/dts/renesas/r8a779g0.dtsi     | 30 ++++++---
 arch/arm64/boot/dts/renesas/r8a779h0.dtsi     | 21 +++++--
 drivers/media/platform/renesas/Kconfig        | 18 +-----
 drivers/media/platform/renesas/Makefile       |  2 +-
 .../media/platform/renesas/rcar-isp/Kconfig   | 18 ++++++
 .../media/platform/renesas/rcar-isp/Makefile  |  4 ++
 .../renesas/{rcar-isp.c => rcar-isp/csisp.c}  | 57 ++++++++++-------
 10 files changed, 196 insertions(+), 79 deletions(-)
 create mode 100644 drivers/media/platform/renesas/rcar-isp/Kconfig
 create mode 100644 drivers/media/platform/renesas/rcar-isp/Makefile
 rename drivers/media/platform/renesas/{rcar-isp.c => rcar-isp/csisp.c} (90%)