linux-kernel - Re: [PATCH 3/4] arm64: dts: qcom: qcm2290: add UART3 device

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Message-ID: <55195890-b7d2-4df8-b8c5-fa2768e90094@oss.qualcomm.com>
Date: Sat, 1 Feb 2025 16:19:01 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Rob Herring
 <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Balakrishna Godavarthi <quic_bgodavar@...cinc.com>,
        Rocky Liao <quic_rjliao@...cinc.com>,
        Bjorn Andersson
 <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-bluetooth@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 3/4] arm64: dts: qcom: qcm2290: add UART3 device

On 1.02.2025 10:18 AM, Dmitry Baryshkov wrote:
> On QCM2290-based devices the SE3 is used for the Bluetooth chips. Add
> corresponding device node.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/qcm2290.dtsi | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcm2290.dtsi b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> index f0746123e594d5ce5cc314c956eaca11556a9211..5f92eb16482a0ea5f8436cfa7e55849f171ebd24 100644
> --- a/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> @@ -1239,6 +1239,21 @@ &qup_virt SLAVE_QUP_CORE_0 RPM_ALWAYS_TAG>,
>  				status = "disabled";
>  			};
>  
> +			uart3: serial@...c000 {
> +				compatible = "qcom,geni-uart";
> +				reg = <0x0 0x04a8c000 0x0 0x4000>;
> +				interrupts = <GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&gcc GCC_QUPV3_WRAP0_S3_CLK>;
> +				clock-names = "se";
> +				interconnects = <&qup_virt MASTER_QUP_CORE_0 RPM_ALWAYS_TAG
> +						 &qup_virt SLAVE_QUP_CORE_0 RPM_ALWAYS_TAG>,
> +						<&bimc MASTER_APPSS_PROC RPM_ALWAYS_TAG
> +						 &config_noc MASTER_APPSS_PROC RPM_ALWAYS_TAG>;

This path doesn't look quite right.. there'MASTER_APPSS_PROC is only
on one of these.

+ RPM_ACTIVE_TAG

Konrad