linux-kernel - [PATCH RFC 2/3] arm64: dts: ti: k3-am625-beagleplay: Add Grove connector adapter overlays

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Date: Tue, 2 Jul 2024 11:44:02 -0500
From: Andrew Davis <afd@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Vaishnav M A
	<vaishnav@...gleboard.org>,
        Derek Kiernan <derek.kiernan@....com>,
        Dragan
 Cvetic <dragan.cvetic@....com>, Arnd Bergmann <arnd@...db.de>,
        Michael Walle
	<mwalle@...nel.org>,
        Jason Kridner <jkridner@...gleboard.org>,
        Robert Nelson
	<robertcnelson@...gleboard.org>,
        Robert Nelson <robertcnelson@...il.com>,
        Ayush Singh <ayush@...gleboard.org>,
        Ayush Singh <ayushdevel1325@...il.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Andrew Davis <afd@...com>
Subject: [PATCH RFC 2/3] arm64: dts: ti: k3-am625-beagleplay: Add Grove connector adapter overlays

The second connector is only an example and will be removed.

Signed-off-by: Andrew Davis <afd@...com>
---
 arch/arm64/boot/dts/ti/Makefile               |  2 +
 .../k3-am625-beagleplay-grove-connector0.dtso | 41 +++++++++++++++++++
 .../k3-am625-beagleplay-grove-connector1.dtso | 22 ++++++++++
 3 files changed, 65 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector0.dtso
 create mode 100644 arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector1.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index e20b27ddf9011..a859629a6072c 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -12,6 +12,8 @@
 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-grove-connector0.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-grove-connector1.dtbo
 dtb-$(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-grove-connector0.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector0.dtso
new file mode 100644
index 0000000000000..897d77a6de90a
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector0.dtso
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/**
+ * Gasket Overlay for BeaglePlay Grove Connector 0
+ *
+ * Copyright (C) 2024 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	__symbols__ {
+		GROVE_CONNECTOR = "/grove-connector0";
+
+		/* Grove connector 0 Pin1 options */
+		GROVE_PIN1_MUX_I2C_SCL = "/bus@...00/pinctrl@...00/grove-i2c-pins";
+		GROVE_PIN1_MUX_DIGITAL = "/bus@...00/pinctrl@...00/grove-digital-pins";
+		/* GROVE_PIN1_MUX_ANALOG not available on this pin on this connector on this board */
+		GROVE_PIN1_MUX_UART_RX = "/bus@...00/pinctrl@...00/grove-uart-pins";
+
+		/* Grove connector 0 Pin2 options */
+		GROVE_PIN2_MUX_I2C_SDA = "/bus@...00/pinctrl@...00/grove-i2c-pins";
+		GROVE_PIN2_MUX_DIGITAL = "/bus@...00/pinctrl@...00/grove-digital-pins";
+		/* GROVE_PIN2_MUX_ANALOG not available on this pin on this connector on this board */
+		GROVE_PIN2_MUX_UART_TX = "/bus@...00/pinctrl@...00/grove-uart-pins";
+
+		/* Grove connector 0 uses main_i2c1 for I2C on BeaglePlay */
+		GROVE_PIN1_I2C = "/bus@...00/i2c@...10000";
+		GROVE_PIN2_I2C = "/bus@...00/i2c@...10000";
+
+		/* Grove connector 0 uses main_gpio1 for DIGITAL on BeaglePlay */
+		GROVE_PIN1_DIGITAL = "/bus@...00/gpio@...000";
+		GROVE_PIN2_DIGITAL = "/bus@...00/gpio@...000";
+
+		/* Grove connector 0 does not have ANALOG on BeaglePlay */
+
+		/* Grove connector 0 uses main_uart1 for UART on BeaglePlay */
+		GROVE_PIN1_UART = "/bus@...00/serial@...0000";
+		GROVE_PIN2_UART = "/bus@...00/serial@...0000";
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector1.dtso b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector1.dtso
new file mode 100644
index 0000000000000..1a0e463d4ec65
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay-grove-connector1.dtso
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/**
+ * Gasket Overlay for BeaglePlay Grove Connector 1
+ *
+ * Copyright (C) 2024 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	__symbols__ {
+		GROVE_CONNECTOR = "/grove-connector1";
+
+		/* This connector does not exist on BeaglePlay, this
+		 * file is here as an example to show that add-ons cannot
+		 * be applied when the needed pins are unavailable. No
+		 * pin is available so all add-on overlays should fail
+		 * to attach to this connector.
+		 */
+	};
+};
-- 
2.39.2