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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Oct 19, 2020 at 12:45:24PM -0500, Adam Ford wrote: > The driver exists for the Enhanced Asynchronous Sample Rate Converter > (EASRC) Controller, but there isn't a device tree entry for it. > > On the vendor kernel, they put this on a spba-bus for SDMA support. > > Add the the node for the spba-bus with the easrc node inside. > > Signed-off-by: Adam Ford > > diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi > index 746faf1cf2fb..7d34281332e1 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi > @@ -246,6 +246,34 @@ aips1: bus@30000000 { > #size-cells = <1>; > ranges; > > + spba-bus@30000000 { spba: bus@30000000 > + compatible = "fsl,spba-bus", "simple-bus"; "fsl,spba-bus" is undocumented. Document it or drop it. > + #address-cells = <1>; > + #size-cells = <1>; > + reg = <0x30000000 0x100000>; > + ranges; > + > + easrc: easrc@300C0000 { > + compatible = "fsl,imx8mn-easrc"; > + reg = <0x300C0000 0x10000>; > + interrupts = ; > + clocks = <&clk IMX8MN_CLK_ASRC_ROOT>; > + clock-names = "mem"; > + dmas = <&sdma2 16 23 0> , <&sdma2 17 23 0>, > + <&sdma2 18 23 0> , <&sdma2 19 23 0>, > + <&sdma2 20 23 0> , <&sdma2 21 23 0>, > + <&sdma2 22 23 0> , <&sdma2 23 23 0>; > + dma-names = "ctx0_rx", "ctx0_tx", > + "ctx1_rx", "ctx1_tx", > + "ctx2_rx", "ctx2_tx", > + "ctx3_rx", "ctx3_tx"; > + fsl,easrc-ram-script-name = "imx/easrc/easrc-imx8mn.bin"; Undocumented property? Shawn > + fsl,asrc-rate = <8000>; > + fsl,asrc-width = <16>; > + status = "disabled"; > + }; > + }; > + > gpio1: gpio@30200000 { > compatible = "fsl,imx8mn-gpio", "fsl,imx35-gpio"; > reg = <0x30200000 0x10000>; > -- > 2.25.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel