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SubjectRe: [PATCH V4 2/5] arm64: dts: imx8mn: Enable Asynchronous Sample Rate Converter
On Wed, Nov 18, 2020 at 5:13 PM Adam Ford <aford173@gmail.com> wrote:
>
> On Sat, Nov 7, 2020 at 5:58 AM Adam Ford <aford173@gmail.com> 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 node for the spba-bus with the easrc node inside.
> >
> > Signed-off-by: Adam Ford <aford173@gmail.com>
>
> Shawn,
>
> I split the dt-binding into a separate patch since I was struggling
> with checking the yaml syntax. Rob helped me find the proper branch
> to use. I hope it goes through this time.
>
> Do you have any comments on the rest of the series? I would like to
> fix them if you have any concerns so I can resend if/when the
> dt-binding is accepted.

Shawn,

The dt-binding was accepted per [1]. How do you want me to proceed
for the rest of the series? I can resend the other parts without the
dt-binding if you like.

thanks,

adam
[1] - https://lkml.org/lkml/2020/11/30/1211

>
> thanks,
>
> adam
>
> > ---
> > V4: No change
> > V3: Change spba-bus@30000000 to spba: bus@30000000
> > V2: Make the DT node more in-line with the dt binding and remove
> > vendor customizations that are not applicable.
> > arch/arm64/boot/dts/freescale/imx8mn.dtsi | 28 +++++++++++++++++++++++
> > 1 file changed, 28 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> > index a06d2a6268e6..61560c083300 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> > @@ -253,6 +253,34 @@ aips1: bus@30000000 {
> > #size-cells = <1>;
> > ranges;
> >
> > + spba: bus@30000000 {
> > + compatible = "fsl,spba-bus", "simple-bus";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + reg = <0x30000000 0x100000>;
> > + ranges;
> > +
> > + easrc: easrc@300c0000 {
> > + compatible = "fsl,imx8mn-easrc";
> > + reg = <0x300c0000 0x10000>;
> > + interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
> > + 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";
> > + firmware-name = "imx/easrc/easrc-imx8mn.bin";
> > + fsl,asrc-rate = <8000>;
> > + fsl,asrc-format = <2>;
> > + status = "disabled";
> > + };
> > + };
> > +
> > gpio1: gpio@30200000 {
> > compatible = "fsl,imx8mn-gpio", "fsl,imx35-gpio";
> > reg = <0x30200000 0x10000>;
> > --
> > 2.25.1
> >

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