linux-kernel - [PATCH 3/4] ARM: dts: r8a7742-iwg21d-q7: Add can0 support to carrier board

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Message-Id: <20200825162718.5838-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Tue, 25 Aug 2020 17:27:17 +0100
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: [PATCH 3/4] ARM: dts: r8a7742-iwg21d-q7: Add can0 support to carrier board

This patch enables CAN0 interface exposed through connector J20 on the
carrier board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@...esas.com>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index e709a132f2f7..070fc9729b39 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -198,6 +198,13 @@
 	};
 };
 
+&can0 {
+	pinctrl-0 = <&can0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
 &cmt0 {
 	status = "okay";
 };
@@ -214,6 +221,15 @@
 	};
 };
 
+&gpio1 {
+	can-trx-en-gpio{
+		gpio-hog;
+		gpios = <28 GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "can-trx-en-gpio";
+	};
+};
+
 &hsusb {
 	pinctrl-0 = <&usb0_pins>;
 	pinctrl-names = "default";
@@ -287,6 +303,11 @@
 		function = "tpu0";
 	};
 
+	can0_pins: can0 {
+		groups = "can0_data_d";
+		function = "can0";
+	};
+
 	i2c2_pins: i2c2 {
 		groups = "i2c2_b";
 		function = "i2c2";
-- 
2.17.1