arm64: dts: ti: k3-am68-phyboard-izar: Add PEB-AV-15 overlay

Add an overlay to use the PEB-AV-15 AV-Adapter. It's a small expansion board
using a Lontium LT8912B DSI->HDMI bridge and a TLV320AIC3007 audio codec.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
Link: https://patch.msgid.link/20260320212349.420951-6-d.haller@phytec.de
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index e043192546919ce5c7087984565325eea92731c1..a0a8bb900752af6eb03e5c93ae292c35b1014241 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -135,6 +135,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am68-phyboard-izar.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am68-phyboard-izar-lvds-ph128800t006.dtb
 k3-am68-phyboard-izar-lvds-ph128800t006-dtbs := k3-am68-phyboard-izar.dtb \
        k3-am68-phyboard-izar-lvds-ph128800t006.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am68-phyboard-izar-peb-av-15.dtb
+k3-am68-phyboard-izar-peb-av-15-dtbs := k3-am68-phyboard-izar.dtb \
+        k3-am68-phyboard-izar-peb-av-15.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board-pcie1-ep.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb
@@ -310,6 +313,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
        k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \
        k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
        k3-am68-phyboard-izar-lvds-ph128800t006.dtb \
+       k3-am68-phyboard-izar-peb-av-15.dtb \
        k3-am68-sk-base-board-csi2-dual-imx219.dtb \
        k3-am68-sk-base-board-pcie1-ep.dtb \
        k3-am69-sk-csi2-dual-imx219.dtb \

diff --git a/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso
new file mode 100644 (file)
index 0000000..92007bf
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2026 PHYTEC Messtechnik GmbH
+ * Author: Dominik Haller <d.haller@phytec.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "k3-pinctrl.h"
+
+&{/} {
+       audio_refclk1: audio-clock {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <19200000>;
+       };
+
+       hdmi: hdmi-connector {
+               compatible = "hdmi-connector";
+               label = "hdmi";
+               type = "a";
+               ddc-i2c-bus = <&main_i2c2>;
+
+               port {
+                       hdmi_connector_in: endpoint {
+                               remote-endpoint = <&lt8912b_out>;
+                       };
+               };
+       };
+
+       reg_audio_3v3: regulator-audio-3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "VCC3V3_AUDIO";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+       };
+
+       reg_audio_1v8: regulator-audio-1v8 {
+               compatible = "regulator-fixed";
+               regulator-name = "VCC1V8_AUDIO";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-always-on;
+       };
+
+       sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,name = "PEB-AV-15";
+               simple-audio-card,widgets =
+                       "Headphone", "Headphone Jack",
+                       "Microphone", "Mic Jack";
+               simple-audio-card,routing =
+                       "Headphone Jack", "HPLOUT",
+                       "Headphone Jack", "HPROUT",
+                       "MIC3R", "Mic Jack",
+                       "Mic Jack", "Mic Bias";
+               simple-audio-card,format = "dsp_b";
+               simple-audio-card,bitclock-inversion;
+               simple-audio-card,bitclock-master = <&link0_codec>;
+               simple-audio-card,frame-master = <&link0_codec>;
+
+               link0_cpu: simple-audio-card,cpu {
+                       sound-dai = <&mcasp0>;
+               };
+
+               link0_codec: simple-audio-card,codec {
+                       sound-dai = <&audio_codec>;
+                       clocks = <&audio_refclk1>;
+               };
+       };
+
+};
+
+&dphy_tx1 {
+       status = "okay";
+};
+
+&dsi1 {
+       status = "okay";
+};
+
+&dsi1_ports {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       port@0 {
+               reg = <0>;
+               dsi1_out: endpoint {
+                       remote-endpoint = <&lt8912b_in>;
+               };
+       };
+
+       port@1 {
+               reg = <1>;
+               dsi1_in: endpoint {
+                       remote-endpoint = <&dpi3_out>;
+               };
+       };
+};
+
+&dss {
+       status = "okay";
+};
+
+&dss_ports {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       port@3 {
+               reg = <3>;
+               dpi3_out: endpoint {
+                       remote-endpoint = <&dsi1_in>;
+               };
+       };
+};
+
+&mcasp0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mcasp0_pins>;
+
+       #sound-dai-cells = <0>;
+
+       op-mode = <0>;  /* MCASP_IIS_MODE */
+       tdm-slots = <2>;
+
+       /* 4 serializers */
+       serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+               2 0 0 1
+               0 0 0 0
+               0 0 0 0
+               0 0 0 0
+       >;
+
+       tx-num-evt = <32>;
+       rx-num-evt = <32>;
+       status = "okay";
+};
+
+&main_i2c2 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       audio_codec: audio-codec@18 {
+               compatible = "ti,tlv320aic3007";
+               reg = <0x18>;
+               #sound-dai-cells = <0>;
+               ai3x-micbias-vg = <2>;
+               AVDD-supply = <&reg_audio_3v3>;
+               IOVDD-supply = <&reg_audio_3v3>;
+               DRVDD-supply = <&reg_audio_3v3>;
+               DVDD-supply = <&reg_audio_1v8>;
+       };
+
+       bridge@48 {
+               compatible = "lontium,lt8912b";
+               reg = <0x48>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               lt8912b_in: endpoint {
+                                       data-lanes = <0 1 2 3>;
+                                       remote-endpoint = <&dsi1_out>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+                               lt8912b_out: endpoint {
+                                       remote-endpoint = <&hdmi_connector_in>;
+                               };
+                       };
+               };
+       };
+};
+
+&main_pmx0 {
+       mcasp0_pins: mcasp0-default-pins {
+               pinctrl-single,pins = <
+                       J721S2_IOPAD(0x03c, PIN_INPUT, 1) /* (U27) WCLK, MCASP0_AFSX.MCASP0_AFSX */
+                       J721S2_IOPAD(0x038, PIN_INPUT, 1) /* (AB28) BCLK, MCASP0_ACLKX.MCASP0_ACLKX */
+                       J721S2_IOPAD(0x040, PIN_OUTPUT, 1) /* (AC28) DOUT, MCASP0_AXR0.MCASP0_AXR0 */
+                       J721S2_IOPAD(0x07c, PIN_INPUT, 1) /* (T27) DIN, MCASP0_AXR3.MCASP0_AXR3 */
+               >;
+       };
+};