[PATCH 0/4] dmaengine: sh: rcar-dmac: add R-Car Gen5 X5H support

[PATCH 0/4] dmaengine: sh: rcar-dmac: add R-Car Gen5 X5H support

[Wolfram Sang]

Here is a small series with the needed driver updates to support R-Car
Gen5 and X5H for the SYSC-DMAC. Details are in the patch descriptions,
but it is all small stuff.

It has been tested on an Ironhide board (X5H) and a SparrowHawk (V4H)
for regression testing. The testing branch can be found here:

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/x5h/i2c-experimental

The patches here are based on linux-next as of 20260825. DT checks have
also been passed.

Looking forward to comments or approval!


Wolfram Sang (4):
  dmaengine: sh: rcar-dmac: fix style in struct initialization
  dmaengine: sh: rcar-dmac: SMMU doesn't need IPMMU workaround
  dt-bindings: renesas,rcar-dmac: Add support for R-Car X5H SoC
  dmaengine: sh: rcar-dmac: Add support for R-Car Gen5 SoCs

 .../bindings/dma/renesas,rcar-dmac.yaml       |  6 +++++
 drivers/dma/sh/rcar-dmac.c                    | 25 ++++++++++++++-----
 2 files changed, 25 insertions(+), 6 deletions(-)

-- 
2.47.3

[PATCH 3/4] dt-bindings: renesas,rcar-dmac: Add support for R-Car X5H SoC

[Wolfram Sang]

Also add the familiy compatible because X5H is the first R-Car Gen5 SoC.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 .../devicetree/bindings/dma/renesas,rcar-dmac.yaml          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
index 04fc4a99a7cb..d3d521c927e1 100644
--- a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
@@ -49,6 +49,11 @@ properties:
               - renesas,dmac-r8a779h0     # R-Car V4M
           - const: renesas,rcar-gen4-dmac # R-Car Gen4
 
+      - items:
+          - enum:
+              - renesas,dmac-r8a78000     # R-Car X5H
+          - const: renesas,rcar-gen5-dmac # R-Car Gen5
+
   reg: true
 
   interrupts:
@@ -123,6 +128,7 @@ if:
       contains:
         enum:
           - renesas,rcar-gen4-dmac
+          - renesas,rcar-gen5-dmac
 then:
   properties:
     reg:
-- 
2.47.3

Re: [PATCH 3/4] dt-bindings: renesas,rcar-dmac: Add support for R-Car X5H SoC

[Krzysztof Kozlowski]

On Tue, Aug 25, 2026 at 04:15:45PM +0200, Wolfram Sang wrote:
> Also add the familiy compatible because X5H is the first R-Car Gen5 SoC.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>  .../devicetree/bindings/dma/renesas,rcar-dmac.yaml          | 6 ++++++
>  1 file changed, 6 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof