linux-kernel - [RFC PATCH v2 3/3] arm64: dts: renesas: ulcb-kf: add node for GPS

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Date:   Tue, 20 Jun 2023 12:39:08 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-renesas-soc@...r.kernel.org
Cc:     Johan Hovold <johan@...nel.org>, Wolfram Sang <wsa@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH v2 3/3] arm64: dts: renesas: ulcb-kf: add node for GPS

From: Wolfram Sang <wsa@...nel.org>

Add the node for the GPS receiver and its VCC supply.

Signed-off-by: Wolfram Sang <wsa@...nel.org>
---
Changes since RFC v1:
* rebased because of patches dropped and refactored
* added static vcc-suplly

@Geert: Not sure if we need so many fixed 3v3 regulators. Most of the
other ones more or less directly derive from d_3v3. Or do you prefer it
this way?

 arch/arm64/boot/dts/renesas/ulcb-kf.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index e62f5359f64b..dd1ffc31c874 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -39,6 +39,13 @@ accel_3v3: regulator-acc-3v3 {
 		regulator-max-microvolt = <3300000>;
 	};
 
+	d_3v3: regulator-d-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "d-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
 	hdmi_1v8: regulator-hdmi-1v8 {
 		compatible = "regulator-fixed";
 		regulator-name = "hdmi-1v8";
@@ -434,6 +441,13 @@ &scif1 {
 	pinctrl-names = "default";
 
 	status = "okay";
+
+	gnss {
+		compatible = "u-blox,neo-m8";
+		reset-gpios = <&gpio_exp_75 6 GPIO_ACTIVE_LOW>;
+		vcc-supply = <&d_3v3>;
+		current-speed = <9600>;
+	};
 };
 
 &sdhi3 {
-- 
2.30.2