arm64: tegra: Audio codec support on Jetson AGX Orin

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@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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 (file)
--- 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";
        };
 };