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[144.178.202.138]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c34adc25c89sm346173466b.45.2026.10.14.00.13.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Oct 2026 00:13:24 -0700 (PDT) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 14 Oct 2026 09:13:23 +0200 Message-Id: Subject: Re: [PATCH 3/3] arm64: dts: qcom: Add Samsung Galaxy Book2 Go From: "Luca Weiss" To: "Dmitry Baryshkov" , "Luca Weiss" Cc: "Konrad Dybcio" , "Douglas Anderson" , "Neil Armstrong" , "Jessica Zhang" , "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , "Bjorn Andersson" , "Konrad Dybcio" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , , <~postmarketos/upstreaming@lists.sr.ht>, , , , , , "Jasper Korten" , "Federico Amedeo Izzo" , "Luca Weiss" , "Hans de Goede" X-Mailer: aerc 0.22.0-0-gc2f86b7abde3-dirty References: <20261012-book2go-v1-0-7188e7ea7a15@fairphone.com> <20261012-book2go-v1-3-7188e7ea7a15@fairphone.com> In-Reply-To: On Wed Oct 14, 2026 at 3:28 AM CEST, Dmitry Baryshkov wrote: > On Tue, Oct 13, 2026 at 12:17:05PM +0200, Luca Weiss wrote: >> On Tue Oct 13, 2026 at 12:10 PM CEST, Konrad Dybcio wrote: >> > On 10/12/26 8:11 PM, Luca Weiss wrote: >> >> From: Jasper Korten >> > >> > [...] >> > >> >> Signed-off-by: Jasper Korten >> >> Co-developed-by: Federico Amedeo Izzo >> >> Signed-off-by: Federico Amedeo Izzo >> >> Co-developed-by: Luca Weiss >> >> Signed-off-by: Luca Weiss >> >> Signed-off-by: Luca Weiss >> > >> > Good to see the Lucas are in agreement ;) >>=20 >> :) >>=20 >> > >> > [...] >> > >> >> +&usb_1 { >> >> + dr_mode =3D "host"; >> > >> > Does OTG not "just work"? >>=20 >> Is this a feature one would want on a laptop? On a phone for sure, but I >> don't quite see the use case for the laptop to be a peripheral? But I >> didn't try it, the USB basic setup was done by Jasper > > Why not? It's more or less the same set of usecases: USB gadget device > (which can be a networking gadget, serial, etc). I can give it a try! > >>=20 >> > >> > I'm assuming there's no pmic-glink on this device? >>=20 >> I'm not quite sure yet how the USB stuff works. For sure from >> observation, USB-C only works when stuff was plugged-in at boot time >> (UEFI?), and charger also only supplies any power (but not actually >> charging) when plugged in at boot time. > > This means that something is not 100% correct, for example, missing EC > support. For sure some bits are missing. This laptop doesn't have an EC per-se, it's got a "EMEC" - Emulated EC, where on Windows there's just a bunch of drivers handling EC-like functionality. So e.g. already for battery, we just talk with the sbs-battery directly. I assume this will be the case for the other components on this laptop as well. Regards Luca