Hi Marco,
On Wed, 22 Feb 2023 18:59:41 +0100
Marco Felsch <m.felsch@xxxxxxxxxxxxxx> wrote:
> Hi Luca,
>
> On 23-02-22, Luca Ceresoli wrote:
> > The MSC SM2-MB-EP1 carrier board for the SM2S-IMX8PLUS SMARC module has an
> > NXPP SGTL5000 audio codec connected to I2S-0 (sai2).
> >
> > This requires to:
> >
> > * add the power supplies (always on)
> > * enable sai2 with pinmuxes
> > * reparent the CLKOUT1 clock that feeds the codec SYS_MCLK to
> > IMX8MP_CLK_24M in order it to generate an accurate 24 MHz rate
> >
> > Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
> > ---
> > .../dts/freescale/imx8mp-msc-sm2s-ep1.dts | 60 +++++++++++++++++++
> > 1 file changed, 60 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
> > index 470ff8e31e32..894d9809f76d 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
> > @@ -14,6 +14,57 @@ / {
> > compatible = "avnet,sm2s-imx8mp-14N0600E-ep1",
> > "avnet,sm2s-imx8mp-14N0600E", "avnet,sm2s-imx8mp",
> > "fsl,imx8mp";
>
> ...
>
> > +/* I2S-0 = sai2 */
> > +&sai2 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_sai2>;
> > +
> > + assigned-clocks = <&clk IMX8MP_CLK_SAI2>;
> > + assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
> > + assigned-clock-rates = <12288000>;
> > +
> > + fsl,sai-mclk-direction-output;
> > + status = "okay";
> > };
>
> Do you have some downstream patches for the sai interfaces? AFAIR Marek
> worked on this but the patches are not mainlien yet.
Right, my patch is based on the v3 series by Marek, and it should be
threaded accordingly
(https://lore.kernel.org/linux-arm-kernel/20230222172552.1545519-1-luca.ceresoli@xxxxxxxxxxx/),
but I realize I haven't made it 100% clear -- sorry about this.
I guess I should just resend separately with a clarifying cover letter
next time.
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
