linux-kernel - Re: [PATCH v1] arm64: dts: qcom: sa8775p: Add UART node

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Message-ID: <fa189b4c-d407-4d48-9677-528f07f81efa@quicinc.com>
Date: Thu, 11 Jul 2024 10:34:24 +0530
From: Viken Dadhaniya <quic_vdadhani@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski
	<krzk@...nel.org>, <andersson@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <conor+dt@...nel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <quic_msavaliy@...cinc.com>, <quic_anupkulk@...cinc.com>
Subject: Re: [PATCH v1] arm64: dts: qcom: sa8775p: Add UART node



On 7/10/2024 4:09 PM, Konrad Dybcio wrote:
> On 10.07.2024 11:47 AM, Krzysztof Kozlowski wrote:
>> On 10/07/2024 11:41, Viken Dadhaniya wrote:
>>> Add missing UART configuration for sa8775.
>>>
>>> Signed-off-by: Viken Dadhaniya <quic_vdadhani@...cinc.com>
>>> ---
>>>   arch/arm64/boot/dts/qcom/sa8775p.dtsi | 231 ++++++++++++++++++++++++++
>>>   1 file changed, 231 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>>> index 23f1b2e5e624..c107ee40341d 100644
>>> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>>> @@ -1,6 +1,7 @@
>>>   // SPDX-License-Identifier: BSD-3-Clause
>>>   /*
>>>    * Copyright (c) 2023, Linaro Limited
>>> + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
>>>    */
>>>   
>>>   #include <dt-bindings/interconnect/qcom,icc.h>
>>> @@ -657,6 +658,21 @@
>>>   				status = "disabled";
>>>   			};
>>>   
>>> +			uart14: serial@...000 {
>>> +				compatible = "qcom,geni-uart";
>>> +				reg = <0x0 0x00880000 0x0 0x4000>;
>>> +				interrupts = <GIC_SPI 373 IRQ_TYPE_LEVEL_HIGH>;
>>> +				clocks = <&gcc GCC_QUPV3_WRAP2_S0_CLK>;
>>> +				clock-names = "se";
>>> +				interconnects = <&clk_virt MASTER_QUP_CORE_2 QCOM_ICC_TAG_ALWAYS
>>> +						 &clk_virt SLAVE_QUP_CORE_2 QCOM_ICC_TAG_ALWAYS>,
>>> +						<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
>>> +						 &config_noc SLAVE_QUP_2 QCOM_ICC_TAG_ALWAYS>;
>>> +				interconnect-names = "qup-core", "qup-config";
>>> +				power-domains = <&rpmhpd SA8775P_CX>;
>>
>> All the clocks, interconenct and power domains look to me questionable.
>> AFAIK, most of it (if not all) is going to be removed.
> 
> Yeah.. I'm lukewarm on accepting any sa8775p changes until that qcs9100(?)
> situation is squared out first
> 
> Konrad

Thanks for clarification. Please help to sign-off or let me know in case 
of any concern.