linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: add wifi node for IPQ5332 based RDP441

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Message-ID: <f69fea6c-c6a3-461f-96e5-2e6ccd76cf73@quicinc.com>
Date: Tue, 28 Jan 2025 22:30:54 +0530
From: Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Krzysztof Kozlowski
	<krzk@...nel.org>, <ath12k@...ts.infradead.org>
CC: <linux-wireless@...r.kernel.org>, Kalle Valo <kvalo@...nel.org>,
        "Rob
 Herring" <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Conor
 Dooley" <conor+dt@...nel.org>,
        Jeff Johnson <jjohnson@...nel.org>,
        "Bjorn
 Andersson" <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH 2/2] arm64: dts: qcom: add wifi node for IPQ5332 based
 RDP441

On 1/28/2025 5:02 PM, Konrad Dybcio wrote:
> On 28.01.2025 10:41 AM, Raj Kumar Bhagat wrote:
>> On 1/28/2025 2:52 PM, Krzysztof Kozlowski wrote:
>>> On 28/01/2025 10:10, Raj Kumar Bhagat wrote:
>>>> +	/*                 Default Profile
>>>> +	 * +============+==============+=====================+
>>>> +	 * |            |              |                     |
>>>> +	 * | Region     | Start Offset |       Size          |
>>>> +	 * |            |              |                     |
>>>> +	 * +------------+--------------+---------------------+
>>>> +	 * |            |              |                     |
>>>> +	 * |            |              |                     |
>>>> +	 * |            |              |                     |
>>>> +	 * | WLAN Q6    |  0x4A900000  |       43MB          |
>>>> +	 * |            |              |                     |
>>>> +	 * |            |              |                     |
>>>> +	 * +------------+--------------+---------------------+
>>>> +	 * | M3 Dump    |  0x4D400000  |       1MB           |
>>>> +	 * +============+==============+=====================+
>>>> +	 * |                                                 |
>>>> +	 * |                                                 |
>>>> +	 * |                                                 |
>>>> +	 * |            Rest of memory for Linux             |
>>>> +	 * |                                                 |
>>>> +	 * |                                                 |
>>>> +	 * |                                                 |
>>>> +	 * +=================================================+
>>>> +	 */
>>>> +
>>>> +	reserved-memory {
>>>> +		#address-cells = <2>;
>>>> +		#size-cells = <2>;
>>>> +		ranges;
>>>> +
>>>> +		q6_region: wcss@...00000 {
>>>> +			reg = <0x0 0x4a900000 0x0 0x02b00000>;
>>>> +			no-map;
>>>> +		};
>>>> +
>>>> +		m3_dump: m3-dump@...00000 {
>>>
>>> This fails with your wireless patchset.
>>>
>>
>> Yes, this will fail with v4 wireless patch.
>> We have v5 (yet to be sent) to read the correct reserved memory. Since,
>> in v4 I was asked to address and send DTS patch separately, The corresponding
>> driver patches are yet to be sent.
> 
> I think the intention was to send them separately, but together time-wise, so
> that the large set of net changes is somewhat shrunk, but the reviewers can
> cross-reference both series if/as needed
> 

Yes, the intention is similar: to get DT related reviews before posting the next
version (v5) of the driver changes.

>>
>>>> +			reg = <0x0 0x4D400000 0x0 0x100000>;
> 
> Please use lowercase hex
> 

Thanks, will do in next version.