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

Message

Niklas Söderlund March 15, 2025, 3:27 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.

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           | 56 +++++++++++++++--
 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   | 17 ++++++
 .../media/platform/renesas/rcar-isp/Makefile  |  4 ++
 .../renesas/{rcar-isp.c => rcar-isp/csisp.c}  | 56 ++++++++++-------
 10 files changed, 189 insertions(+), 77 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} (89%)