[PATCH v4 5/5] arm64: dts: renesas: r9a07g044: Enable sci0 node using dt overlay

From: Biju Das <biju.das.jz@bp.renesas.com>
To: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH v4 5/5] arm64: dts: renesas: r9a07g044: Enable sci0 node using dt overlay
Date: Tue, 21 Mar 2023 11:47:53 +0000	[thread overview]
Message-ID: <20230321114753.75038-6-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20230321114753.75038-1-biju.das.jz@bp.renesas.com>

Enable sci0 node using dt overlay and disable can{0,1}-stb-hog
nodes in dt overlay as its pins are shared with sci0 pins.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v3->v4:
 * Updated commit header sci0 nodes->sci0 node
 * Removed PMOD USBUART reference and connection details as user can connect
   anything on that PMOD1 pins.
 * Renamed r9a07g043-smarc.dtso->r9a07g043-smarc-pmod.dtso
 * Dropped unused header file dt-bindings/gpio/gpio.h
v3:
 * New patch
---
 arch/arm64/boot/dts/renesas/Makefile          |  1 +
 .../dts/renesas/r9a07g043-smarc-pmod.dtso     | 42 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a07g043-smarc-pmod.dtso

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 23b10c03091c..d1f10ae85f9f 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -76,6 +76,7 @@ dtb-$(CONFIG_ARCH_R8A77961) += r8a779m3-ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A77965) += r8a779m5-salvator-xs.dtb
 
 dtb-$(CONFIG_ARCH_R9A07G043) += r9a07g043u11-smarc.dtb
+dtb-$(CONFIG_ARCH_R9A07G043) += r9a07g043-smarc-pmod.dtbo
 
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc.dtb
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb
diff --git a/arch/arm64/boot/dts/renesas/r9a07g043-smarc-pmod.dtso b/arch/arm64/boot/dts/renesas/r9a07g043-smarc-pmod.dtso
new file mode 100644
index 000000000000..b125a1152982
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a07g043-smarc-pmod.dtso
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the RZ/{G2UL, Five} SMARC EVK PMOD parts
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ *
+ *
+ * [Connection]
+ *
+ * SMARC EVK
+ * +----------------------------+
+ * |CN7 (PMOD1 PIN HEADER)      |
+ * |	SCI0_TXD	  pin7  |
+ * |	SCI0_RXD	  pin8  |
+ * +----------------------------+
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+&pinctrl {
+	can0-stb-hog {
+		status = "disabled";
+	};
+
+	can1-stb-hog {
+		status = "disabled";
+	};
+
+	sci0_pins: sci0-pins {
+		pinmux = <RZG2L_PORT_PINMUX(2, 2, 5)>, /* TxD */
+			 <RZG2L_PORT_PINMUX(2, 3, 5)>; /* RxD */
+	};
+};
+
+&sci0 {
+	pinctrl-0 = <&sci0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
-- 
2.25.1

