linux-kernel - [PATCH v2 2/3] ARM: dts: r8a7742-iwg21d-q7: Add can1 support to carrier board

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Date:   Mon,  7 Sep 2020 16:55:40 +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>,
        Biju Das <biju.das.jz@...renesas.com>,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: [PATCH v2 2/3] ARM: dts: r8a7742-iwg21d-q7: Add can1 support to carrier board

This patch enables CAN1 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 818f1a850c62..66881a473d6c 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -198,6 +198,13 @@
 	};
 };
 
+&can1 {
+	pinctrl-0 = <&can1_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";
 	};
 
+	can1_pins: can1 {
+		groups = "can1_data_b";
+		function = "can1";
+	};
+
 	i2c2_pins: i2c2 {
 		groups = "i2c2_b";
 		function = "i2c2";
-- 
2.17.1