* [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent
@ 2025-05-16 13:18 Radhey Shyam Pandey
2025-05-16 14:16 ` Conor Dooley
2025-05-27 19:26 ` Rob Herring (Arm)
0 siblings, 2 replies; 4+ messages in thread
From: Radhey Shyam Pandey @ 2025-05-16 13:18 UTC (permalink / raw)
To: gregkh, robh, krzk+dt, conor+dt, michal.simek
Cc: linux-usb, devicetree, linux-arm-kernel, linux-kernel, git,
Radhey Shyam Pandey
On Versal Gen 2 SoC the LPD USB DMA controller is coherent with the CPU
so allow specifying the information.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
---
Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
index 379dacacb526..36f5c644d959 100644
--- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
+++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
@@ -26,6 +26,8 @@ properties:
ranges: true
+ dma-coherent: true
+
power-domains:
description: specifies a phandle to PM domain provider node
maxItems: 1
base-commit: 8566fc3b96539e3235909d6bdda198e1282beaed
--
2.34.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent
2025-05-16 13:18 [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent Radhey Shyam Pandey
@ 2025-05-16 14:16 ` Conor Dooley
2025-05-27 19:26 ` Rob Herring
2025-05-27 19:26 ` Rob Herring (Arm)
1 sibling, 1 reply; 4+ messages in thread
From: Conor Dooley @ 2025-05-16 14:16 UTC (permalink / raw)
To: Radhey Shyam Pandey
Cc: gregkh, robh, krzk+dt, conor+dt, michal.simek, linux-usb,
devicetree, linux-arm-kernel, linux-kernel, git
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On Fri, May 16, 2025 at 06:48:36PM +0530, Radhey Shyam Pandey wrote:
> On Versal Gen 2 SoC the LPD USB DMA controller is coherent with the CPU
> so allow specifying the information.
Sounds like it should actually be marked required on this platform, no?
>
> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
> ---
> Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> index 379dacacb526..36f5c644d959 100644
> --- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> +++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml
> @@ -26,6 +26,8 @@ properties:
>
> ranges: true
>
> + dma-coherent: true
> +
> power-domains:
> description: specifies a phandle to PM domain provider node
> maxItems: 1
>
> base-commit: 8566fc3b96539e3235909d6bdda198e1282beaed
> --
> 2.34.1
>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent
2025-05-16 14:16 ` Conor Dooley
@ 2025-05-27 19:26 ` Rob Herring
0 siblings, 0 replies; 4+ messages in thread
From: Rob Herring @ 2025-05-27 19:26 UTC (permalink / raw)
To: Conor Dooley
Cc: Radhey Shyam Pandey, gregkh, krzk+dt, conor+dt, michal.simek,
linux-usb, devicetree, linux-arm-kernel, linux-kernel, git
On Fri, May 16, 2025 at 03:16:02PM +0100, Conor Dooley wrote:
> On Fri, May 16, 2025 at 06:48:36PM +0530, Radhey Shyam Pandey wrote:
> > On Versal Gen 2 SoC the LPD USB DMA controller is coherent with the CPU
> > so allow specifying the information.
>
> Sounds like it should actually be marked required on this platform, no?
Should still work without it, just more overhead of unnecessary cache
flushes.
Rob
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent
2025-05-16 13:18 [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent Radhey Shyam Pandey
2025-05-16 14:16 ` Conor Dooley
@ 2025-05-27 19:26 ` Rob Herring (Arm)
1 sibling, 0 replies; 4+ messages in thread
From: Rob Herring (Arm) @ 2025-05-27 19:26 UTC (permalink / raw)
To: Radhey Shyam Pandey
Cc: linux-usb, linux-kernel, michal.simek, git, linux-arm-kernel,
krzk+dt, gregkh, devicetree, conor+dt
On Fri, 16 May 2025 18:48:36 +0530, Radhey Shyam Pandey wrote:
> On Versal Gen 2 SoC the LPD USB DMA controller is coherent with the CPU
> so allow specifying the information.
>
> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
> ---
> Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
Applied, thanks!
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2025-05-27 19:31 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2025-05-16 13:18 [PATCH] dt-bindings: usb: dwc3-xilinx: allow dma-coherent Radhey Shyam Pandey
2025-05-16 14:16 ` Conor Dooley
2025-05-27 19:26 ` Rob Herring
2025-05-27 19:26 ` Rob Herring (Arm)
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