* [PATCH] dt-bindings: mmc: arasan,sdhci: Allow "dma-coherent" property
@ 2025-12-15 21:27 Rob Herring (Arm)
2025-12-17 13:44 ` Ulf Hansson
0 siblings, 1 reply; 2+ messages in thread
From: Rob Herring (Arm) @ 2025-12-15 21:27 UTC (permalink / raw)
To: Ulf Hansson, Krzysztof Kozlowski, Conor Dooley, Adrian Hunter
Cc: linux-mmc, devicetree, linux-kernel
The Arasan SDHCI controller is DMA coherent on the APM merlin SoC, so allow
the dma-coherent property. No reason implementations can't also be coherent
and there's not an SoC specific compatible, so allow it on any platform.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml b/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
index 8e79de97b242..d6b6fa6dcffb 100644
--- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
@@ -121,6 +121,8 @@ properties:
- const: clk_ahb
- const: gate
+ dma-coherent: true
+
interrupts:
minItems: 1
maxItems: 2
--
2.51.0
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] dt-bindings: mmc: arasan,sdhci: Allow "dma-coherent" property
2025-12-15 21:27 [PATCH] dt-bindings: mmc: arasan,sdhci: Allow "dma-coherent" property Rob Herring (Arm)
@ 2025-12-17 13:44 ` Ulf Hansson
0 siblings, 0 replies; 2+ messages in thread
From: Ulf Hansson @ 2025-12-17 13:44 UTC (permalink / raw)
To: Rob Herring (Arm)
Cc: Krzysztof Kozlowski, Conor Dooley, Adrian Hunter, linux-mmc,
devicetree, linux-kernel
On Mon, 15 Dec 2025 at 22:28, Rob Herring (Arm) <robh@kernel.org> wrote:
>
> The Arasan SDHCI controller is DMA coherent on the APM merlin SoC, so allow
> the dma-coherent property. No reason implementations can't also be coherent
> and there's not an SoC specific compatible, so allow it on any platform.
>
> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Applied for next, thanks!
Kind regards
Uffe
> ---
> Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml b/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
> index 8e79de97b242..d6b6fa6dcffb 100644
> --- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
> @@ -121,6 +121,8 @@ properties:
> - const: clk_ahb
> - const: gate
>
> + dma-coherent: true
> +
> interrupts:
> minItems: 1
> maxItems: 2
> --
> 2.51.0
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-12-17 13:44 ` Ulf Hansson
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