linux-kernel - [DONOTAPPLY RFC PATCH v2 4/4] arm64: dts: samsung,coreprimevelte: add wifi node

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Message-ID: <20251026182602.26464-5-balejk@matfyz.cz>
Date: Sun, 26 Oct 2025 19:20:41 +0100
From: Karel Balej <balejk@...fyz.cz>
To: Johannes Berg <johannes@...solutions.net>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Duje Mihanović <duje@...emihanovic.xyz>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Brian Norris <briannorris@...omium.org>,
        Francesco Dolcini <francesco@...cini.it>,
        Ulf Hansson <ulf.hansson@...aro.org>, Frank Li <Frank.Li@....com>,
        linux-wireless@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mmc@...r.kernel.org
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Karel Balej <balejk@...fyz.cz>, Jeff Chen <jeff.chen_1@....com>,
        Peng Fan <peng.fan@....com>
Subject: [DONOTAPPLY RFC PATCH v2 4/4] arm64: dts: samsung,coreprimevelte: add wifi node

Add a node for the phone's WiFi serviced by the Marvell SD8777 chip a
communication with which happens over the SDIO. Also enable a regulator
without which it is not possible to connect to networks although they
are discovered properly.

Signed-off-by: Karel Balej <balejk@...fyz.cz>
---
 .../mmp/pxa1908-samsung-coreprimevelte.dts        | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
index b2ce5edd9c6a..36d6ae4e902e 100644
--- a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
+++ b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
@@ -475,6 +475,14 @@ ldo14: ldo14 {
 				regulator-min-microvolt = <1200000>;
 				regulator-max-microvolt = <3300000>;
 			};
+
+			/*
+			 * Needs to be enabled in order for the WiFi to be able
+			 * to connect to networks.
+			 */
+			ldo15 {
+				regulator-always-on;
+			};
 		};
 	};
 };
@@ -523,6 +531,13 @@ &sdh1 {
 	pinctrl-1 = <&sdh1_fast_pins_0 &sdh1_fast_pins_1 &sdh1_pins_2>;
 	bus-width = <4>;
 	non-removable;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	wifi@1 {
+		compatible = "marvell,sd8777";
+		reg = <1>;
+	};
 };
 
 &pwm3 {
-- 
2.51.1