linux-kernel - Re: [PATCH v3 5/5] imx8mq.dtsi: add the sdma nodes

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Date:   Wed, 23 Jan 2019 17:50:27 +0100
From:   Lucas Stach <l.stach@...gutronix.de>
To:     "Angus Ainslie (Purism)" <angus@...ea.ca>
Cc:     angus.ainslie@...i.sm, Vinod Koul <vkoul@...nel.org>,
        dmaengine@...r.kernel.org, NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Daniel Baluta <daniel.baluta@...il.com>
Subject: Re: [PATCH v3 5/5] imx8mq.dtsi: add the sdma nodes

Am Mittwoch, den 23.01.2019, 08:23 -0700 schrieb Angus Ainslie (Purism):
> Add the sdma nodes to the base devicetree for the imx8mq
> 
> > Signed-off-by: Angus Ainslie (Purism) <angus@...ea.ca>
> ---
>  arch/arm64/boot/dts/freescale/imx8mq.dtsi | 31 +++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> index c0402375e7c1..4397992fd021 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> @@ -336,6 +336,19 @@
> >  				clocks = <&clk IMX8MQ_CLK_WDOG3_ROOT>;
> >  				status = "disabled";
> >  			};
> +
> > > +			sdma2: sdma@...c0000 {
> > +				compatible = "fsl,imx8mq-sdma", "fsl,imx7d-sdma";
> > +				reg = <0x302c0000 0x10000>;
> > +				interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
> > +				clocks = <&clk IMX8MQ_CLK_SDMA2_ROOT>,
> > +					<&clk IMX8MQ_CLK_SDMA2_ROOT>;
> > +				clock-names = "ipg", "ahb";
> > +				#dma-cells = <3>;
> > +				fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";
> +				fsl,ratio-1-1;

Property does not exist anymore.

> +				status = "disabled";

SoC peripherals that have no outside connection and thus don't depend
on any board level configuration should always be enabled. Please drop
this status property.

> +			};
> >  		};
>  
> >  		bus@...00000 { /* AIPS2 */
> @@ -370,6 +383,8 @@
> >  				clocks = <&clk IMX8MQ_CLK_UART3_ROOT>,
> >  				         <&clk IMX8MQ_CLK_UART3_ROOT>;
> >  				clock-names = "ipg", "per";
> > +				dmas = <&sdma1 26 4 0>, <&sdma1 27 4 0>;
> > +				dma-names = "rx", "tx";
> >  				status = "disabled";
> >  			};
>  
> @@ -381,6 +396,8 @@
> >  				clocks = <&clk IMX8MQ_CLK_UART2_ROOT>,
> >  				         <&clk IMX8MQ_CLK_UART2_ROOT>;
> >  				clock-names = "ipg", "per";
> > +				dmas = <&sdma1 24 4 0>, <&sdma1 25 4 0>;
> > +				dma-names = "rx", "tx";
> >  				status = "disabled";
> >  			};
>  
> @@ -432,6 +449,8 @@
> >  				clocks = <&clk IMX8MQ_CLK_UART4_ROOT>,
> >  				         <&clk IMX8MQ_CLK_UART4_ROOT>;
> >  				clock-names = "ipg", "per";
> > +				dmas = <&sdma1 28 4 0>, <&sdma1 29 4 0>;
> > +				dma-names = "rx", "tx";
> >  				status = "disabled";
> >  			};
>  
> @@ -465,6 +484,18 @@
> >  				status = "disabled";
> >  			};
>  
> > > +			sdma1: sdma@...d0000 {
> > +				compatible = "fsl,imx8mq-sdma", "fsl,imx7d-sdma";
> > +				reg = <0x30bd0000 0x10000>;
> > +				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> > +				clocks = <&clk IMX8MQ_CLK_SDMA1_ROOT>,
> > +					<&clk IMX8MQ_CLK_AHB>;
> > +				clock-names = "ipg", "ahb";
> > +				#dma-cells = <3>;
> > +				fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";
> +				status = "disabled";

Same comment as above, this node should be enabled by default.

Regards,
Lucas

> +			};
> +
> > >  			fec1: ethernet@...e0000 {
> >  				compatible = "fsl,imx8mq-fec", "fsl,imx6sx-fec";
> >  				reg = <0x30be0000 0x10000>;