arm64: dts: imx93-11x11-evk: Add PDM microphone sound card support

Add PDM micphone sound card support, configure the pinmux.

This sound card supports recording sound from PDM microphone
and convert the PDM format data to PCM data.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
index b2e298dc90679b746c7d72f1c6a9237fc08366e6..2273d318310f62d1d0b907f3a474682ed9b268df 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
@@ -104,6 +104,20 @@
                        sound-dai = <&bt_sco_codec 1>;
                };
        };
+
+       sound-micfil {
+               compatible = "fsl,imx-audio-card";
+               model = "micfil-audio";
+
+               pri-dai-link {
+                       link-name = "micfil hifi";
+                       format = "i2s";
+
+                       cpu {
+                               sound-dai = <&micfil>;
+                       };
+               };
+       };
 };
 
 &adc1 {
@@ -357,6 +371,16 @@
        status = "okay";
 };
 
+&micfil {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&pinctrl_pdm>;
+       pinctrl-1 = <&pinctrl_pdm_sleep>;
+       assigned-clocks = <&clk IMX93_CLK_PDM>;
+       assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
+       assigned-clock-rates = <49152000>;
+       status = "okay";
+};
+
 &mu1 {
        status = "okay";
 };
@@ -559,6 +583,22 @@
                >;
        };
 
+       pinctrl_pdm: pdmgrp {
+               fsl,pins = <
+                       MX93_PAD_PDM_CLK__PDM_CLK                       0x31e
+                       MX93_PAD_PDM_BIT_STREAM0__PDM_BIT_STREAM00      0x31e
+                       MX93_PAD_PDM_BIT_STREAM1__PDM_BIT_STREAM01      0x31e
+               >;
+       };
+
+       pinctrl_pdm_sleep: pdmsleepgrp {
+               fsl,pins = <
+                       MX93_PAD_PDM_CLK__GPIO1_IO08                    0x31e
+                       MX93_PAD_PDM_BIT_STREAM0__GPIO1_IO09            0x31e
+                       MX93_PAD_PDM_BIT_STREAM1__GPIO1_IO10            0x31e
+               >;
+       };
+
        pinctrl_sai1: sai1grp {
                fsl,pins = <
                        MX93_PAD_SAI1_TXC__SAI1_TX_BCLK                 0x31e