mbox series

[v5,0/3] Add RZ/G2L DMAC support

Message ID 20210729082520.26186-1-biju.das.jz@bp.renesas.com (mailing list archive)
Headers show
Series Add RZ/G2L DMAC support | expand

Message

Biju Das July 29, 2021, 8:25 a.m. UTC 
This patch series aims to add DMAC support on RZ/G2L SoC's.

It is based on the work done by Chris Brandt for RZ/A DMA driver.

v4->v5:
 * Passing legacy slave channel configuration parameters using dmaengine_slave_config is prohibited.
   So started passing this parameters in DT instead, by encoding MID/RID values with channel parameters
   in the #dma-cells.
 * Removed Rb tag's of Geert and Rob since there is a modification in binding patch
 * Added 128 byte slave bus width support
 * Removed SoC dtsi and Defconfig patch from this series. Will send as separate patch.

Ref:-
  https://lore.kernel.org/linux-renesas-soc/20210719092535.4474-1-biju.das.jz@bp.renesas.com/T/#ma0b261df6d4400882204aaaaa014ddb59c479db4

v3->v4:
 * Added Rob's Rb tag for binding patch.
 * Incorporated Vinod and Geert's review comments.
v2->v3:
  * Described clocks and resets in binding file as per Rob's feedback.

v1->v2
 * Started using virtual DMAC
 * Added Geert's Rb tag for binding patch.

Biju Das (3):
  dt-bindings: dma: Document RZ/G2L bindings
  dmaengine: Extend the dma_slave_width for 128 bytes
  drivers: dma: sh: Add DMAC driver for RZ/G2L SoC

 .../bindings/dma/renesas,rz-dmac.yaml         | 130 +++
 drivers/dma/sh/Kconfig                        |   9 +
 drivers/dma/sh/Makefile                       |   1 +
 drivers/dma/sh/rz-dmac.c                      | 971 ++++++++++++++++++
 include/linux/dmaengine.h                     |   3 +-
 5 files changed, 1113 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml
 create mode 100644 drivers/dma/sh/rz-dmac.c