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[144.178.202.138]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b976cba2e01sm48940266b.9.2026.03.13.07.00.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 13 Mar 2026 07:00:54 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@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: Fri, 13 Mar 2026 15:00:53 +0100 Message-Id: Cc: <~postmarketos/upstreaming@lists.sr.ht>, , , , Subject: Re: [PATCH 4/5] arm64: dts: qcom: milos-fairphone-fp6: Enable Bluetooth From: "Luca Weiss" To: "Luca Weiss" , "Konrad Dybcio" , "Bjorn Andersson" , "Konrad Dybcio" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Alexander Koskovich" X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20260116-milos-fp6-bt-wifi-v1-0-27b4fbb77e9c@fairphone.com> <20260116-milos-fp6-bt-wifi-v1-4-27b4fbb77e9c@fairphone.com> <52fffc84-2fb5-47aa-835c-b0dd8c110d59@oss.qualcomm.com> In-Reply-To: On Fri Mar 13, 2026 at 11:40 AM CET, Luca Weiss wrote: > On Wed Jan 21, 2026 at 12:52 PM CET, Konrad Dybcio wrote: >> On 1/16/26 3:50 PM, Luca Weiss wrote: >>> Add the nodes to describe the WCN6755 chip with its PMU and Bluetooth >>> parts. >>>=20 >>> Thanks to Alexander Koskovich for helping with the bringup, adding >>> 'clocks' to the PMU node to make Bluetooth work. >>>=20 >>> Signed-off-by: Luca Weiss >>> --- >>> arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts | 174 +++++++++++++++= ++++++++ >>> 1 file changed, 174 insertions(+) >>>=20 >>> diff --git a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts b/arch/ar= m64/boot/dts/qcom/milos-fairphone-fp6.dts >>> index 52895dd9e4fa..cbe1507b0aaa 100644 >>> --- a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts >>> +++ b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts >>> + bluetooth_enable_default: bluetooth-enable-default-state { >>> + pins =3D "gpio53"; >>> + function =3D "gpio"; >>> + output-low; >>> + bias-disable; >>> + }; >> >> Not sure if we need to drive that pin.. perhaps a pull-down would >> suffice? > > I'll give it a shot, this pinctrl is coming from downstream but perhaps > the downstream btpower.c driver is differing in behavior to the upstream > PMU driver. Seems to work, but honestly I'm not sure what the actual effects of this change are? - output-low; - bias-disable; + bias-pull-down; Regards Luca