From: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>

This has been tested on the Pixel 3a with USB Cereal board

Depends on
https://lore.kernel.org/all/20260310002606.16413-5-mailingradian@gmail.com/

Signed-off-by: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
---
 arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi b/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi
index 32dce1cfdf6f..e8bd5f3861e4 100644
--- a/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi
@@ -27,7 +27,9 @@
 /delete-node/ &gpu_mem;
 
 / {
-	aliases { };
+	aliases {
+		serial0 = &uart12;
+	};
 
 	battery: battery {
 		compatible = "simple-battery";
@@ -683,6 +685,16 @@ &qupv3_id_1 {
 	status = "okay";
 };
 
+&qup_uart12_rx {
+	drive-strength = <2>;
+	bias-pull-up;
+};
+
+&qup_uart12_tx {
+	drive-strength = <2>;
+	bias-disable;
+};
+
 &sdhc_1 {
 	supports-cqe;
 	mmc-hs200-1_8v;
@@ -749,6 +761,10 @@ ts-switch-pins {
 	};
 };
 
+&uart12 {
+	status = "okay";
+};
+
 &usb_1_hsphy {
 	vdd-supply = <&vreg_l1b_0p925>;
 	vdda-pll-supply = <&vreg_l10a_1p8>;

-- 
2.53.0

On 3/28/26 11:58 PM, Pablo Correa Gómez via B4 Relay wrote:
> From: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
> 
> This has been tested on the Pixel 3a with USB Cereal board
> 
> Depends on
> https://lore.kernel.org/all/20260310002606.16413-5-mailingradian@gmail.com/
> 
> Signed-off-by: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

On Sat, Mar 28, 2026 at 11:58:42PM +0100, Pablo Correa Gómez via B4 Relay wrote:
> From: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
> 
> This has been tested on the Pixel 3a with USB Cereal board
> 
> Depends on
> https://lore.kernel.org/all/20260310002606.16413-5-mailingradian@gmail.com/
> 
> Signed-off-by: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry