Re: [PATCH 04/10] arm64: dts: juno: use proper 'dma-channels/requests' properties

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On 2022-04-27 16:58, Krzysztof Kozlowski wrote:
pl330 DMA controller bindings documented 'dma-channels' and
'dma-requests' properties (without leading hash sign), so fix the DTS to
match the bindings.

Reported-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
  arch/arm64/boot/dts/arm/juno-base.dtsi | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index 4f40a5c8f565..96ef0ddc0b2d 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -829,8 +829,8 @@ dma-controller@7ff00000 {
  		compatible = "arm,pl330", "arm,primecell";
  		reg = <0x0 0x7ff00000 0 0x1000>;
  		#dma-cells = <1>;
-		#dma-channels = <8>;
-		#dma-requests = <32>;
+		dma-channels = <8>;
+		dma-requests = <32>;

BTW, this has always been wrong - Juno is configured with only 8 request interfaces. But then it's moot anyway since PL330 has an ID register for this stuff[1], so the DT properties aren't used by Linux, and shouldn't be needed in general.

Thanks,
Robin.

[1] https://developer.arm.com/documentation/ddi0424/d/programmers-model/register-descriptions/configuration-register-0?lang=en

  		interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
  			     <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
  			     <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,



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