ARM: dts: am335x: Add Seeed Studio BeagleBone HDMI cape overlay

Add devicetree overlay for the Seeed Studio BeagleBone HDMI cape, which
provides HDMI output via an ITE IT66121 HDMI bridge and audio support
through McASP.

The cape is designed for BeagleBone Green but is also compatible with
BeagleBone and BeagleBone Black due to pin compatibility.

Link: https://www.seeedstudio.com/Seeed-Studio-BeagleBoner-Green-HDMI-Cape.html
Signed-off-by: Kory Maincent (TI) <kory.maincent@bootlin.com>
Signed-off-by: Kevin Hilman (TI) <khilman@baylibre.com>

diff --git a/arch/arm/boot/dts/ti/omap/Makefile b/arch/arm/boot/dts/ti/omap/Makefile
index 4c577214f512286c0863d61148817a4267d1f744..3a4d9204339b941abd76ff6d7eb6be242576be94 100644 (file)
--- a/arch/arm/boot/dts/ti/omap/Makefile
+++ b/arch/arm/boot/dts/ti/omap/Makefile
@@ -84,6 +84,10 @@ dtb-$(CONFIG_ARCH_OMAP4) += \
        omap4-samsung-espresso10.dtb \
        omap4-xyboard-mz609.dtb \
        omap4-xyboard-mz617.dtb
+
+am335x-bonegreen-hdmi-00a0-dtbs := am335x-bonegreen-eco.dtb \
+       am335x-bone-hdmi-00a0.dtbo
+
 dtb-$(CONFIG_SOC_AM33XX) += \
        am335x-baltos-ir2110.dtb \
        am335x-baltos-ir3220.dtb \
@@ -95,6 +99,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
        am335x-bonegreen.dtb \
        am335x-bonegreen-wireless.dtb \
        am335x-bonegreen-eco.dtb \
+       am335x-bonegreen-hdmi-00a0.dtb \
        am335x-chiliboard.dtb \
        am335x-cm-t335.dtb \
        am335x-evm.dtb \

diff --git a/arch/arm/boot/dts/ti/omap/am335x-bone-hdmi-00a0.dtso b/arch/arm/boot/dts/ti/omap/am335x-bone-hdmi-00a0.dtso
new file mode 100644 (file)
index 0000000..f43f44c
--- /dev/null
+++ b/arch/arm/boot/dts/ti/omap/am335x-bone-hdmi-00a0.dtso
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * 2017 Copyright (c) Seeed Technology Inc.  All right reserved.
+ * Author: Baozhu Zuo <zuobaozhu@gmail.com>
+ * Copyright (c) Bootlin 2026
+ *
+ * This device tree overlay is compatible with the BeagleBone Black, Green
+ * and their subversions.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/pinctrl/am33xx.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&{/} {
+       hdmi0: connector-hdmi {
+               compatible = "hdmi-connector";
+               label = "hdmi";
+               type = "a";
+               port {
+                       hdmi_connector_in: endpoint {
+                               remote-endpoint = <&it66121_out>;
+                       };
+               };
+       };
+
+       clk_mcasp0_fixed: clk-mcasp0-fixed {
+               #clock-cells = <0>;
+               compatible = "fixed-clock";
+               clock-frequency = <24576000>;
+       };
+
+       clk_mcasp0: clk-mcasp0 {
+               #clock-cells = <0>;
+               compatible = "gpio-gate-clock";
+               clocks = <&clk_mcasp0_fixed>;
+               enable-gpios = <&gpio1 27 0>;
+       };
+
+       sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,name = "TI BeagleBone Green HDMI cape";
+               simple-audio-card,format = "i2s";
+               simple-audio-card,bitclock-master = <&sound_master>;
+               simple-audio-card,frame-master = <&sound_master>;
+
+               sound_master: simple-audio-card,cpu {
+                       sound-dai = <&mcasp0>;
+                       clocks = <&clk_mcasp0>;
+               };
+
+               simple-audio-card,codec {
+                       sound-dai = <&it66121>;
+               };
+       };
+};
+
+&am33xx_pinmux {
+       bb_lcd_pins: pinmux-bb-lcd-pins {
+               pinctrl-single,pins = <
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA0, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA1, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA2, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA3, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA4, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA5, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA6, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA7, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA8, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA9, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA10, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA11, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA12, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA13, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA14, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_DATA15, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_VSYNC, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_HSYNC, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_PCLK, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_LCD_AC_BIAS_EN, PIN_OUTPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_GPMC_ADVN_ALE, PIN_OUTPUT_PULLDOWN, MUX_MODE7)
+                       AM33XX_PADCONF(AM335X_PIN_GPMC_OEN_REN, PIN_OUTPUT_PULLDOWN, MUX_MODE7)
+                       AM33XX_PADCONF(AM335X_PIN_GPMC_WEN, PIN_INPUT, MUX_MODE7)
+               >;
+       };
+       mcasp0_pins: mcasp0-pins {
+               pinctrl-single,pins = <
+                       AM33XX_PADCONF(AM335X_PIN_MCASP0_AHCLKX, PIN_INPUT_PULLUP, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_MCASP0_AHCLKR, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
+                       AM33XX_PADCONF(AM335X_PIN_MCASP0_FSX, PIN_OUTPUT_PULLUP, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_MCASP0_ACLKX, PIN_OUTPUT_PULLDOWN, MUX_MODE0)
+               >;
+       };
+};
+
+&i2c2 {
+       status = "okay";
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       it66121: it66121 {
+               compatible = "ite,it66121";
+               reg = <0x4d>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&bb_lcd_pins>;
+
+               #sound-dai-cells = <0>;
+
+               interrupt-parent = <&gpio2>;
+               interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               it66121_in: endpoint {
+                                       bus-width = <24>;
+                                       remote-endpoint = <&lcdc_0>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+                               it66121_out: endpoint {
+                                       remote-endpoint = <&hdmi_connector_in>;
+                               };
+                       };
+               };
+       };
+};
+
+&lcdc {
+       status = "okay";
+       blue-and-red-wiring = "straight";
+       port {
+               lcdc_0: endpoint@0 {
+                       remote-endpoint = <&it66121_in>;
+               };
+       };
+};
+
+
+&mcasp0 {
+       status = "okay";
+       #sound-dai-cells = <0>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&mcasp0_pins>;
+       op-mode = <0>;
+       tdm-slots = <2>;
+       serial-dir = < 0 0 1 0 >;
+       tx-num-evt = <32>;
+       rx-num-evt = <32>;
+};
+