[PATCH 5/8] dts: ti: beagleplay: Add mikrobus connector symbols

[Ayush Singh <ayush@xxxxxxxxxxxxxxx>]

- I2C, UART, PWM symbols
- MIKROBUS_GPIO defines a gpio-controller that defines the pins in the
  following order:
  0: PWM
  1: INT
  2: RX
  3: TX
  4: SCL
  5: SDA
  6: MOSI
  7: MISO
  8: SCK
  9: CS
  10: RST
  11: AN
- PWM should always use channel 0. Use nexus node for routing

Signed-off-by: Ayush Singh <ayush@xxxxxxxxxxxxxxx>
---
 MAINTAINERS                                        |  1 +
 arch/arm64/boot/dts/ti/Makefile                    |  1 +
 .../k3-am625-beagleplay-mikrobus-connector0.dtso   | 49 ++++++++++++++++++++++
 3 files changed, 51 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index d0c18bd7b558..95f228c85a40 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15432,6 +15432,7 @@ F:	drivers/usb/image/microtek.*
 MIKROBUS CONNECTOR
 M:	Ayush Singh <ayush@xxxxxxxxxxxxxxx>
 S:	Maintained
+F:	arch/arm64/boot/dts/ti/k3-am625-beagleplay-mikrobus-connector0.dtso
 F:	Documentation/devicetree/bindings/connector/mikrobus-connector.yaml
 F:	drivers/misc/mikrobus.rs
 
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index bcd392c3206e..c628954a357b 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -12,6 +12,7 @@
 dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-ov5640.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-mikrobus-connector0.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-rdk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-dahlia.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-mikrobus-connector0.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-mikrobus-connector0.dtso
new file mode 100644
index 000000000000..81d370249f64
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-mikrobus-connector0.dtso
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/**
+ * MikroBUS Overlay for BeaglePlay MikroBUS Connector 0
+ *
+ * Copyright (C) 2024 Ayush Singh <ayush@xxxxxxxxxxxxxxx>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	__symbols__ {
+		MIKROBUS_CONNECTOR = "/mikrobus-connector0";
+
+		/* GPIO controller for all pins */
+		MIKROBUS_ALL_GPIO = "/mikrobus-connector0";
+
+		/* MikroBUS connector 0 SCL Pin options */
+		MIKROBUS_SCL_MUX_I2C_SCL = "/bus@f0000/pinctrl@f4000/mikrobus-i2c-default-pins";
+		MIKROBUS_SCL_MUX_DIGITAL = "/bus@f0000/pinctrl@f4000/mikrobus-i2c-gpio-pins";
+
+		/* MikroBUS connector 0 SDA Pin options */
+		MIKROBUS_SDA_MUX_I2C_SDA = "/bus@f0000/pinctrl@f4000/mikrobus-i2c-default-pins";
+		MIKROBUS_SDA_MUX_DIGITAL = "/bus@f0000/pinctrl@f4000/mikrobus-i2c-gpio-pins";
+
+		/* MikroBUS connector 0 UART_TX Pin options */
+		MIKROBUS_TX_MUX_UART_TX = "/bus@f0000/pinctrl@f4000/mikrobus-uart-default-pins";
+		MIKROBUS_TX_MUX_DIGITAL = "/bus@f0000/pinctrl@f4000/mikrobus-uart-gpio-pins";
+
+		/* MikroBUS connector 0 UART_RX Pin options */
+		MIKROBUS_RX_MUX_UART_RX = "/bus@f0000/pinctrl@f4000/mikrobus-uart-default-pins";
+		MIKROBUS_RX_MUX_DIGITAL = "/bus@f0000/pinctrl@f4000/mikrobus-uart-gpio-pins";
+
+		/* MikroBUS connector 0 PWM Pin options */
+		MIKROBUS_PWM_MUX_PWM = "/bus@f0000/pinctrl@f4000/mikrobus-pwm-default-pins";
+		MIKROBUS_PWM_MUX_DIGITAL = "/bus@f0000/pinctrl@f4000/mikrobus-pwm-gpio-pins";
+
+		/* MikroBUS connector 0 uses main_i2c3 for I2C on BeaglePlay */
+		MIKROBUS_SCL_I2C = "/bus@f0000/i2c@20030000";
+		MIKROBUS_SDA_I2C = "/bus@f0000/i2c@20030000";
+
+		/* MikroBUS connector 0 uses main_uart5 for UART on BeaglePlay */
+		MIKROBUS_TX_UART = "/bus@f0000/serial@2850000";
+		MIKROBUS_RX_UART = "/bus@f0000/serial@2850000";
+
+		/* MikroBUS connector 0 uses ecap2 for PWM on BeaglePlay */
+		MIKROBUS_PWM_PWM = "/bus@f0000/pwm@23120000";
+	};
+};

-- 
2.46.0