linux-kernel - [PATCH] ARM: dts: lan966x: Add support for SMA connectors

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Message-ID: <20230421113758.3465678-1-horatiu.vultur@microchip.com>
Date:   Fri, 21 Apr 2023 13:37:58 +0200
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <netdev@...r.kernel.org>
CC:     <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <richardcochran@...il.com>, <nicolas.ferre@...rochip.com>,
        <claudiu.beznea@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH] ARM: dts: lan966x: Add support for SMA connectors

The pcb8309 has 2 SMA connectors which are connected to the lan966x
chip. The lan966x can generate 1PPS output on one of them and it can
receive 1PPS input on the other one.

Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
---
 arch/arm/boot/dts/lan966x-pcb8309.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/lan966x-pcb8309.dts b/arch/arm/boot/dts/lan966x-pcb8309.dts
index c436cd20d4b4c..0cb505f79ba1a 100644
--- a/arch/arm/boot/dts/lan966x-pcb8309.dts
+++ b/arch/arm/boot/dts/lan966x-pcb8309.dts
@@ -144,6 +144,18 @@ fc4_b_pins: fc4-b-pins {
 		function = "fc4_b";
 	};
 
+	pps_out_pins: pps-out-pins {
+		/* 1pps output */
+		pins = "GPIO_38";
+		function = "ptpsync_3";
+	};
+
+	ptp_ext_pins: ptp-ext-pins {
+		/* 1pps input */
+		pins = "GPIO_39";
+		function = "ptpsync_4";
+	};
+
 	sgpio_a_pins: sgpio-a-pins {
 		/* SCK, D0, D1, LD */
 		pins = "GPIO_32", "GPIO_33", "GPIO_34", "GPIO_35";
@@ -212,5 +224,7 @@ gpio@1 {
 };
 
 &switch {
+	pinctrl-0 = <&pps_out_pins>, <&ptp_ext_pins>;
+	pinctrl-names = "default";
 	status = "okay";
 };
-- 
2.38.0