linux-kernel - Re: [PATCH 1/5] arm64: dts: imx8-ss-hsio: Wire up DMA IRQ for PCIe

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Message-ID: <Z31KrdxPULx8K5ao@lizhi-Precision-Tower-5810>
Date: Tue, 7 Jan 2025 10:39:25 -0500
From: Frank Li <Frank.li@....com>
To: Alexander Stein <alexander.stein@...tq-group.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux@...tq-group.com
Subject: Re: [PATCH 1/5] arm64: dts: imx8-ss-hsio: Wire up DMA IRQ for PCIe

On Tue, Jan 07, 2025 at 03:01:06PM +0100, Alexander Stein wrote:
> IRQ mapping is already present. Add the missing DMA interrupt.

PCI host side have not use bridge's DMA yet although hardware support it.

Frank

>
> Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8-ss-hsio.dtsi | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-hsio.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-hsio.dtsi
> index 70a8aa1a67911..4bdfc15487cbc 100644
> --- a/arch/arm64/boot/dts/freescale/imx8-ss-hsio.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8-ss-hsio.dtsi
> @@ -57,8 +57,9 @@ pcieb: pcie@...10000 {
>  		ranges = <0x81000000 0 0x00000000 0x8ff80000 0 0x00010000>,
>  			 <0x82000000 0 0x80000000 0x80000000 0 0x0ff00000>;
>  		#interrupt-cells = <1>;
> -		interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
> -		interrupt-names = "msi";
> +		interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "msi", "dma";
>  		#address-cells = <3>;
>  		#size-cells = <2>;
>  		clocks = <&pcieb_lpcg IMX_LPCG_CLK_6>,
> --
> 2.34.1
>