[PATCH] arm64: dts: imx8mp-msc-sm2s: Add sound card

[Marek Vasut]

On 2/22/23 18:59, Marco Felsch 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 at bootlin.com>
>> ---
>>   .../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.

I guess it is time to resubmit these.