[0/3] dmaengine: sh: rz-dmac: add r7s72100 support

Message

Wolfram Sang Sept. 30, 2024, 2:59 p.m. UTC

When activating good old Genmai board for regression testing, I found
out that not much is needed to activate the DMA controller for A1L.
Which makes sense, because the driver was initially written for this
SoC. Let it come home ;)

Patch 1 is a generic fix. The other patches are the actual enablement.
A branch with DTS additions for MMCIF can be found here:

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/genmai-upstreaming

These will be upstreamed once the driver parts are in next. Adding SDHI
is still WIP because RZ/A1L usage exposes a SDHI driver bug. So much for
the value of regression testing...

Wolfram Sang (3):
  dmaengine: sh: rz-dmac: handle configs where one address is zero
  dt-bindings: dma: rz-dmac: Document RZ/A1L SoC
  dmaengine: sh: rz-dmac: add r7s72100 support

 .../bindings/dma/renesas,rz-dmac.yaml         | 27 +++++++++++++------
 drivers/dma/sh/Kconfig                        |  6 ++---
 drivers/dma/sh/rz-dmac.c                      | 27 ++++++++++---------
 3 files changed, 37 insertions(+), 23 deletions(-)