[PATCH v2] arm64: tegra: Audio codec support on Jetson AGX Orin

From: Sameer Pujar
Date: Sun Feb 12 2023 - 23:45:00 EST


Jetson AGX Orin has onboard RT5640 audio codec. This patch adds the
codec device node and the bindings to I2S1 interface.

Signed-off-by: Sameer Pujar <spujar@xxxxxxxxxx>
---
changes in v2:
* removed explicit 'status' property from audio codec node
* driver change in the series got merged, so just sending v2 for DT patch.

.../dts/nvidia/tegra234-p3737-0000+p3701-0000.dts | 45 +++++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
index 8a97478..ddc057f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
@@ -3,6 +3,7 @@

#include <dt-bindings/input/linux-event-codes.h>
#include <dt-bindings/input/gpio-keys.h>
+#include <dt-bindings/sound/rt5640.h>

#include "tegra234-p3701-0000.dtsi"
#include "tegra234-p3737-0000.dtsi"
@@ -49,7 +50,7 @@

i2s1_dap: endpoint {
dai-format = "i2s";
- /* placeholder for external codec */
+ remote-endpoint = <&rt5640_ep>;
};
};
};
@@ -2017,6 +2018,30 @@
status = "okay";
};

+ i2c@31e0000 {
+ status = "okay";
+
+ audio-codec@1c {
+ compatible = "realtek,rt5640";
+ reg = <0x1c>;
+ interrupt-parent = <&gpio>;
+ interrupts = <TEGRA234_MAIN_GPIO(AC, 5) GPIO_ACTIVE_HIGH>;
+ clocks = <&bpmp TEGRA234_CLK_AUD_MCLK>;
+ clock-names = "mclk";
+ realtek,dmic1-data-pin = <RT5640_DMIC1_DATA_PIN_NONE>;
+ realtek,dmic2-data-pin = <RT5640_DMIC2_DATA_PIN_NONE>;
+ realtek,jack-detect-source = <RT5640_JD_SRC_HDA_HEADER>;
+ sound-name-prefix = "CVB-RT";
+
+ port {
+ rt5640_ep: endpoint {
+ remote-endpoint = <&i2s1_dap>;
+ mclk-fs = <256>;
+ };
+ };
+ };
+ };
+
pwm@32a0000 {
assigned-clocks = <&bpmp TEGRA234_CLK_PWM3>;
assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLP_OUT0>;
@@ -2293,5 +2318,23 @@
<&dmic3_port>;

label = "NVIDIA Jetson AGX Orin APE";
+
+ widgets = "Microphone", "CVB-RT MIC Jack",
+ "Microphone", "CVB-RT MIC",
+ "Headphone", "CVB-RT HP Jack",
+ "Speaker", "CVB-RT SPK";
+
+ routing = /* I2S1 <-> RT5640 */
+ "CVB-RT AIF1 Playback", "I2S1 DAP-Playback",
+ "I2S1 DAP-Capture", "CVB-RT AIF1 Capture",
+ /* RT5640 codec controls */
+ "CVB-RT HP Jack", "CVB-RT HPOL",
+ "CVB-RT HP Jack", "CVB-RT HPOR",
+ "CVB-RT IN1P", "CVB-RT MIC Jack",
+ "CVB-RT IN2P", "CVB-RT MIC Jack",
+ "CVB-RT SPK", "CVB-RT SPOLP",
+ "CVB-RT SPK", "CVB-RT SPORP",
+ "CVB-RT DMIC1", "CVB-RT MIC",
+ "CVB-RT DMIC2", "CVB-RT MIC";
};
};
--
2.7.4