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Wed, 21 Jan 2026 05:26:39 -0800 (PST) From: Biswapriyo Nath Date: Wed, 21 Jan 2026 13:26:19 +0000 Subject: [PATCH v2 3/5] arm64: dts: qcom: sm6125: Add debug UART node Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260121-xiaomi-ginkgo-features-v2-3-fb3ee94922d0@gmail.com> References: <20260121-xiaomi-ginkgo-features-v2-0-fb3ee94922d0@gmail.com> In-Reply-To: <20260121-xiaomi-ginkgo-features-v2-0-fb3ee94922d0@gmail.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Biswapriyo Nath , Konrad Dybcio X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1769001984; l=1390; i=nathbappai@gmail.com; s=20260118; h=from:subject:message-id; bh=hB2PWZM4ZB4CYZFskv7vZ7lEVdcGMkMbujOg9c56v/I=; b=+tNfMlVu/60v1/8jW5BzCD87Jr+udO9JBnfv1+at5mgstF0y01P/XnjTm2D/jC+ZQZOKWxtXQ CNMWoZ8Q7QIA4QyH+6lk30XL2gRk//hJ9pIY3ZMNOH2n58HjwHir+DH X-Developer-Key: i=nathbappai@gmail.com; a=ed25519; pk=slmb/9yXbet+KTiT3EYLCp0p0MEOYa3EdjUXP+HXfjg= qup0 on sm6125 has 6 SEs and SE4 is used as debug uart. The uart node and the associated pinctrl are added here. Reviewed-by: Konrad Dybcio Signed-off-by: Biswapriyo Nath --- arch/arm64/boot/dts/qcom/sm6125.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qco= m/sm6125.dtsi index e60d4d74c..0540fb865 100644 --- a/arch/arm64/boot/dts/qcom/sm6125.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi @@ -661,6 +661,13 @@ qup_spi9_sleep: qup-spi9-sleep-state { drive-strength =3D <6>; bias-disable; }; + + qup_uart4_default: qup-uart4-default-state { + pins =3D "gpio16", "gpio17"; + function =3D "qup04"; + drive-strength =3D <2>; + bias-disable; + }; }; =20 gcc: clock-controller@1400000 { @@ -985,6 +992,17 @@ i2c4: i2c@4a90000 { #size-cells =3D <0>; status =3D "disabled"; }; + + uart4: serial@4a90000 { + compatible =3D "qcom,geni-debug-uart"; + reg =3D <0x04a90000 0x4000>; + clocks =3D <&gcc GCC_QUPV3_WRAP0_S4_CLK>; + clock-names =3D "se"; + interrupts =3D ; + pinctrl-0 =3D <&qup_uart4_default>; + pinctrl-names =3D "default"; + status =3D "disabled"; + }; }; =20 gpi_dma1: dma-controller@4c00000 { --=20 2.52.0