[PATCH v3 0/5] k3-am68-phyboard-izar dsi support

[PATCH v3 0/5] k3-am68-phyboard-izar dsi support

[Dominik Haller]

This series adds support for the two dsi based display interfaces of the
phyboard-izar with the phycore-am68x/tda4x som.

dsi0 gets converted to lvds on the som using a SN65DSI83 bridge in the
default configuration. The phyboard-izar kit comes with a 10.1" lvds
display with usb touch as addon.

dsi1 is routed to the carrier board onto a connector. To use that Phytec
has developed a small extension board "PEB-AV-15" with a Lontium LT8912B
dsi->hdmi bridge.

Changes for v2:
- Drop the following patch as it got merged in the last window:
  dt-bindings: display: bridge: lt8912b: Drop reset gpio requirement

- In arm64: dts: ti: k3-am68-phyboard-izar: Add LVDS-Display
  Reduce pwm frequency to ~23kHz for the backlight. This is supported by
  the backlight and works better with most fans. Since the fan connector
  is using PWM0_A and the backlight PWM0_B they need to use the same
  frequency.

- In arm64: dts: ti: k3-am68-phyboard-izar: Add PEB-AV-15 overlay
  Fix license in boilerplate: s/GPL-2.0-or-only or MIT/GPL-2.0-only OR MIT

Link to v1:
https://lore.kernel.org/linux-devicetree/20260130205820.83189-1-d.haller@phytec.de/

Changes for v3:
- In arm64: dts: ti: k3-j721s2-main: Add DSI1
  Pick up Beleswar's Reviewed-by from v1

- In arm64: dts: ti: k3-am68-phyboard-izar: Add PEB-AV-15 overlay
  Fix the remaining style issues pointed out by Vignesh in v2

Link to v2:
https://lore.kernel.org/linux-devicetree/20260306033151.276202-1-d.haller@phytec.de/

Dominik Haller (5):
  arm64: dts: ti: k3-am68-phyboard-izar: Assign dss clocks
  arm64: dts: ti: k3-am68-phycore-som: Add DSI->LVDS bridge
  arm64: dts: ti: k3-am68-phyboard-izar: Add LVDS-Display
  arm64: dts: ti: k3-j721s2-main: Add DSI1
  arm64: dts: ti: k3-am68-phyboard-izar: Add PEB-AV-15 overlay

 arch/arm64/boot/dts/ti/Makefile               |   8 +
 ...-am68-phyboard-izar-lvds-ph128800t006.dtso | 125 ++++++++++++
 .../ti/k3-am68-phyboard-izar-peb-av-15.dtso   | 192 ++++++++++++++++++
 .../boot/dts/ti/k3-am68-phyboard-izar.dts     |  18 ++
 .../boot/dts/ti/k3-am68-phycore-som.dtsi      |  17 ++
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi    |  39 ++++
 6 files changed, 399 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-lvds-ph128800t006.dtso
 create mode 100644 arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso

-- 
2.43.0

[PATCH v3 1/5] arm64: dts: ti: k3-am68-phyboard-izar: Assign dss clocks

[Dominik Haller]

Assign the dss clocks in the base dts so that display overlays can be
used in any combination.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
---
 .../boot/dts/ti/k3-am68-phyboard-izar.dts      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar.dts b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar.dts
index e221ccb30e95..b8d17bdb7685 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar.dts
@@ -298,6 +298,24 @@ phy0: ethernet-phy@0 {
 	};
 };
 
+&dss {
+	/*
+	 * VP0 - Displayport
+	 * VP1 - DPI0
+	 * VP2 - DSI0
+	 * VP3 - DPI1/DSI1
+	 */
+
+	assigned-clocks = <&k3_clks 158 2>,
+			  <&k3_clks 158 5>,
+			  <&k3_clks 158 14>,
+			  <&k3_clks 158 18>;
+	assigned-clock-parents = <&k3_clks 158 3>,
+				 <&k3_clks 158 7>,
+				 <&k3_clks 158 16>,
+				 <&k3_clks 158 22>;
+};
+
 &i2c_som_rtc {
 	trickle-resistor-ohms = <3000>;
 };
-- 
2.43.0

[PATCH v3 2/5] arm64: dts: ti: k3-am68-phycore-som: Add DSI->LVDS bridge

[Dominik Haller]

Add the TI SN65DSI83 MIPI-DSI->LVDS bridge that can be populated on the
phyCORE-AM68x/TDA4x.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
---
 arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
index 0ff511028f81..ab87767419fe 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
@@ -151,6 +151,12 @@ J721S2_WKUP_IOPAD(0x09c, PIN_INPUT_PULLUP, 0) /* (H27) WKUP_I2C0_SDA */
 		>;
 		bootph-all;
 	};
+
+	wkup_sn65dsi83_pins_default: wkup-sn65dsi83-default-pins {
+		pinctrl-single,pins = <
+			J721S2_WKUP_IOPAD(0x084, PIN_OUTPUT, 7) /* (F25) WKUP_GPIO0_11 */
+		>;
+	};
 };
 
 &main_cpsw {
@@ -183,6 +189,17 @@ &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_pins_default>;
 
+	sn65dsi83: bridge@2d {
+		compatible = "ti,sn65dsi83";
+		reg = <0x2d>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&wkup_sn65dsi83_pins_default>;
+		enable-gpios = <&wkup_gpio0 11 GPIO_ACTIVE_LOW>;
+		vcc-supply = <&bucka4>;
+		/* enabled in panel overlay */
+		status = "disabled";
+	};
+
 	temperature-sensor@48 {
 		compatible = "ti,tmp102";
 		reg = <0x48>;
-- 
2.43.0

[PATCH v3 3/5] arm64: dts: ti: k3-am68-phyboard-izar: Add LVDS-Display

[Dominik Haller]

Add an overlay to use a powertip,ph128800t006-zhc01 10.1" LVDS display.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
---
 arch/arm64/boot/dts/ti/Makefile               |   4 +
 ...-am68-phyboard-izar-lvds-ph128800t006.dtso | 125 ++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-lvds-ph128800t006.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index ba01a929e06f..a188e62e32b4 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -132,6 +132,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721e-sk-csi2-dual-imx219.dtbo
 
 # Boards with J721s2 SoC
 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-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board-pcie1-ep.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb
@@ -319,6 +322,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
 	k3-am67a-kontron-sa67-base-gpios.dtb \
+	k3-am68-phyboard-izar-lvds-ph128800t006.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-lvds-ph128800t006.dtso b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-lvds-ph128800t006.dtso
new file mode 100644
index 000000000000..f167d6cc43e7
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-lvds-ph128800t006.dtso
@@ -0,0 +1,125 @@
+// 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 <dt-bindings/pwm/pwm.h>
+#include "k3-pinctrl.h"
+
+&{/} {
+	backlight_lvds: backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 32 64 96 128 160 192 224 255>;
+		default-brightness-level = <6>;
+		enable-gpios = <&exp2 12 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&backlight_pins_default>;
+		power-supply = <&bl_12v>;
+		pwms = <&main_ehrpwm0 1 44000 0>;
+	};
+
+	bl_12v: regulator-backlight {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&exp2 13 GPIO_ACTIVE_HIGH>;
+		regulator-name = "BL_12V";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	panel-lvds {
+		compatible = "powertip,ph128800t006-zhc01";
+		backlight = <&backlight_lvds>;
+		power-supply = <&vcc_5v0>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&panel_bridge_out>;
+			};
+		};
+	};
+};
+
+&main_pmx0 {
+	backlight_pins_default: backlight-default-pins {
+		pinctrl-single,pins = <
+			J721S2_IOPAD(0x064, PIN_OUTPUT, 9) /* (W28) MCAN0_TX.EHRPWM0_B */
+		>;
+	};
+};
+
+&dphy_tx0 {
+	status = "okay";
+};
+
+&dss {
+	status = "okay";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@2 {
+		reg = <2>;
+		dpi2_out: endpoint {
+			remote-endpoint = <&dsi0_in>;
+		};
+	};
+};
+
+&dsi0 {
+	status = "okay";
+};
+
+&dsi0_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@0 {
+		reg = <0>;
+		dsi0_out: endpoint {
+			remote-endpoint = <&panel_bridge_in>;
+		};
+	};
+
+	port@1 {
+		reg = <1>;
+		dsi0_in: endpoint {
+			remote-endpoint = <&dpi2_out>;
+		};
+	};
+};
+
+&main_ehrpwm0 {
+        status = "okay";
+};
+
+&sn65dsi83 {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			panel_bridge_in: endpoint {
+				remote-endpoint = <&dsi0_out>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+
+		port@2 {
+			reg = <2>;
+			panel_bridge_out: endpoint {
+				remote-endpoint = <&panel_in>;
+			};
+		};
+	};
+};
-- 
2.43.0

[PATCH v3 4/5] arm64: dts: ti: k3-j721s2-main: Add DSI1

[Dominik Haller]

Add the second DSI instance and its corresponding phy to the main domain
include file.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
Reviewed-by: Beleswar Padhi <b-padhi@ti.com>
---
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 80c51b11ac9f..80a32c451d1b 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -1815,6 +1815,19 @@ dphy_tx0: phy@4480000 {
 		status = "disabled";
 	};
 
+	dphy_tx1: phy@4481000 {
+		compatible = "ti,j721e-dphy";
+		reg = <0x00 0x04481000 0x00 0x00001000>;
+		clocks = <&k3_clks 364 8>, <&k3_clks 364 14>;
+		clock-names = "psm", "pll_ref";
+		#phy-cells = <0>;
+		power-domains = <&k3_pds 364 TI_SCI_PD_EXCLUSIVE>;
+		assigned-clocks = <&k3_clks 364 14>;
+		assigned-clock-parents = <&k3_clks 364 15>;
+		assigned-clock-rates = <19200000>;
+		status = "disabled";
+	};
+
 	dsi0: dsi@4800000 {
 		compatible = "ti,j721e-dsi";
 		reg = <0x00 0x04800000 0x00 0x00100000>,
@@ -1841,6 +1854,32 @@ port@1 {
 		};
 	};
 
+	dsi1: dsi@4900000 {
+		compatible = "ti,j721e-dsi";
+		reg = <0x00 0x04900000 0x00 0x00100000>,
+		      <0x00 0x04720000 0x00 0x00000100>;
+		clocks = <&k3_clks 155 4>, <&k3_clks 155 1>;
+		clock-names = "dsi_p_clk", "dsi_sys_clk";
+		power-domains = <&k3_pds 155 TI_SCI_PD_EXCLUSIVE>;
+		interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
+		phys = <&dphy_tx1>;
+		phy-names = "dphy";
+		status = "disabled";
+
+		dsi1_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+			};
+
+			port@1 {
+				reg = <1>;
+			};
+		};
+	};
+
 	dss: dss@4a00000 {
 		compatible = "ti,j721e-dss";
 		reg = <0x00 0x04a00000 0x00 0x10000>, /* common_m */
-- 
2.43.0

[PATCH v3 5/5] arm64: dts: ti: k3-am68-phyboard-izar: Add PEB-AV-15 overlay

[Dominik Haller]

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>
---
 arch/arm64/boot/dts/ti/Makefile               |   4 +
 .../ti/k3-am68-phyboard-izar-peb-av-15.dtso   | 192 ++++++++++++++++++
 2 files changed, 196 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index a188e62e32b4..ae5994818ad2 100644
--- 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
@@ -323,6 +326,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
 	k3-am67a-kontron-sa67-base-gpios.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
index 000000000000..a86971fcdee1
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso
@@ -0,0 +1,192 @@
+// 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 */
+		>;
+	};
+};
-- 
2.43.0

Re: [PATCH v3 5/5] arm64: dts: ti: k3-am68-phyboard-izar: Add PEB-AV-15 overlay

[Vignesh Raghavendra]

On 12/03/26 05:18, Dominik Haller wrote:
> 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>
> ---
>  arch/arm64/boot/dts/ti/Makefile               |   4 +
>  .../ti/k3-am68-phyboard-izar-peb-av-15.dtso   | 192 ++++++++++++++++++
>  2 files changed, 196 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso
> 
> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> index a188e62e32b4..ae5994818ad2 100644
> --- 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
> @@ -323,6 +326,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
>  	k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
>  	k3-am67a-kontron-sa67-base-gpios.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
> index 000000000000..a86971fcdee1
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-peb-av-15.dtso
> @@ -0,0 +1,192 @@
> +// 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";

You have spacs instead of tabs

> +};
> +
> +&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>;
> +

Here too... Please check the entire series.

> +        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>;

Missing space before "="

> +		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 */
> +		>;
> +	};
> +};

-- 
Regards
Vignesh
https://ti.com/opensource

Re: [PATCH v3 3/5] arm64: dts: ti: k3-am68-phyboard-izar: Add LVDS-Display

[Vignesh Raghavendra]

On 12/03/26 05:18, Dominik Haller wrote:

[...]

> +&dsi0_ports {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	port@0 {
> +		reg = <0>;
> +		dsi0_out: endpoint {
> +			remote-endpoint = <&panel_bridge_in>;
> +		};
> +	};
> +
> +	port@1 {
> +		reg = <1>;
> +		dsi0_in: endpoint {
> +			remote-endpoint = <&dpi2_out>;
> +		};
> +	};
> +};


> +
> +&main_ehrpwm0 {
> +        status = "okay";

Use tabs please

> +};
> +

[...]

> +&sn65dsi83 {
> +	status = "okay";
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port@0 {
> +			reg = <0>;
> +			panel_bridge_in: endpoint {
> +				remote-endpoint = <&dsi0_out>;
> +				data-lanes = <1 2 3 4>;
> +			};
> +		};
> +
> +		port@2 {
> +			reg = <2>;
> +			panel_bridge_out: endpoint {
> +				remote-endpoint = <&panel_in>;
> +			};
> +		};
> +	};
> +};

-- 
Regards
Vignesh
https://ti.com/opensource