From: Shengjiu Wang <shengjiu.wang@nxp.com>
To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com
Subject: [PATCH 2/2] arm64: dts: imx8mp-evk:Add PDM micphone sound card support
Date: Fri, 23 Feb 2024 16:02:19 +0800 [thread overview]
Message-ID: <1708675339-8180-2-git-send-email-shengjiu.wang@nxp.com> (raw)
In-Reply-To: <1708675339-8180-1-git-send-email-shengjiu.wang@nxp.com>
Add PDM micphone sound card support, configure the pinmux.
This sound card supports recording sound from PDM micphone
and convert the PDM format data to PCM data.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 34 ++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 63f6e72fa18a..fdcd1158a34a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -146,6 +146,20 @@ sound-hdmi {
status = "okay";
};
+ sound-micfil {
+ compatible = "fsl,imx-audio-card";
+ model = "micfil-audio";
+
+ pri-dai-link {
+ link-name = "micfil hifi";
+ format = "i2s";
+
+ cpu {
+ sound-dai = <&micfil>;
+ };
+ };
+ };
+
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
@@ -527,6 +541,16 @@ &lcdif1 {
status = "okay";
};
+&micfil {
+ #sound-dai-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pdm>;
+ assigned-clocks = <&clk IMX8MP_CLK_PDM>;
+ assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <196608000>;
+ status = "okay";
+};
+
&mipi_dsi {
samsung,esc-clock-frequency = <10000000>;
status = "okay";
@@ -793,6 +817,16 @@ MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x40
>;
};
+ pinctrl_pdm: pdmgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI5_RXC__AUDIOMIX_PDM_CLK 0xd6
+ MX8MP_IOMUXC_SAI5_RXD0__AUDIOMIX_PDM_BIT_STREAM00 0xd6
+ MX8MP_IOMUXC_SAI5_RXD1__AUDIOMIX_PDM_BIT_STREAM01 0xd6
+ MX8MP_IOMUXC_SAI5_RXD2__AUDIOMIX_PDM_BIT_STREAM02 0xd6
+ MX8MP_IOMUXC_SAI5_RXD3__AUDIOMIX_PDM_BIT_STREAM03 0xd6
+ >;
+ };
+
pinctrl_pmic: pmicgrp {
fsl,pins = <
MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03 0x000001c0
--
2.34.1
next prev parent reply other threads:[~2024-02-23 8:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-23 8:02 [PATCH 1/2] arm64: dts: imx8mp-evk: Add HDMI audio sound card support Shengjiu Wang
2024-02-23 8:02 ` Shengjiu Wang [this message]
2024-02-23 9:06 ` Alexander Stein
2024-02-26 3:06 ` Shengjiu Wang
2024-05-12 13:26 ` Francesco Dolcini
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