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Wed, 03 Dec 2025 13:47:29 -0800 (PST) Received: from localhost ([2a00:79e0:2e7c:8:e953:f750:77d0:7f01]) by smtp.gmail.com with UTF8SMTPSA id a92af1059eb24-11dcb04a07bsm88741033c88.7.2025.12.03.13.47.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Dec 2025 13:47:28 -0800 (PST) Date: Wed, 3 Dec 2025 13:47:27 -0800 From: Brian Norris To: Karel Balej Cc: Johannes Berg , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Duje =?utf-8?Q?Mihanovi=C4=87?= , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Francesco Dolcini , Ulf Hansson , Frank Li , linux-wireless@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Jeff Chen , Peng Fan Subject: Re: [DONOTAPPLY RFC PATCH v2 4/4] arm64: dts: samsung,coreprimevelte: add wifi node Message-ID: References: <20251026182602.26464-1-balejk@matfyz.cz> <20251026182602.26464-5-balejk@matfyz.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251026182602.26464-5-balejk@matfyz.cz> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251203_134732_303181_63C1ED30 X-CRM114-Status: GOOD ( 21.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, Oct 26, 2025 at 07:20:41PM +0100, Karel Balej wrote: > 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 > --- > .../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; Do we have a min/max voltage for this regulator? > + }; > }; > }; > }; > @@ -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>; I wonder if this should have: vmmc-supply = <&ldo16>; rather than regulator-always-on above. Brian > + > + wifi@1 { > + compatible = "marvell,sd8777"; > + reg = <1>; > + }; > }; > > &pwm3 { > -- > 2.51.1 >