Re: [PATCH v10 4/6] arm64: dts: qcom: ipq5018: add nodes to bring up q6

From: Konrad Dybcio

Date: Fri Feb 20 2026 - 05:36:32 EST


On 2/19/26 8:42 PM, Jeff Johnson wrote:
> On 1/13/2026 1:20 AM, Varadarajan Narayanan wrote:
>> From: George Moussalem <george.moussalem@xxxxxxxxxxx>
>>
>> Enable nodes required for q6 remoteproc bring up.
>
> I just recently became aware of this series, and have some questions...
>
>> + q6v5_wcss: remoteproc@cd00000 {
>> + compatible = "qcom,ipq5018-wcss-sec-pil";
>> + reg = <0x0cd00000 0x10000>;
>> + firmware-name = "ath11k/IPQ5018/hw1.0/q6_fw.mbn";
>
> This file does not currently exist in linux-firmware.
> Instead there is q6_fw.mdt with associated .b* files.
>
> How do we transition from .mdt to .mbn given that distros update their version
> of linux-firmware independently from kernel updates? Will we need to have both
> the .mdt and .mbn files present for some period of time? Are there associated
> changes which no longer attempt to load the .mdt files?

Since there are no in-kernel users for this one (the ipq8074 WCSS driver
requests that but no DT is wired up), I would say we should promptly move to
MBN..

> I ask because I've been told the ath11k/ath12k drivers will also need to
> transition their firmware loading from m3_fw.mdt to m3_fw.mbn, and I'm not
> sure how to make that transition.

I can't see any m3_fw.mdt in the tree or l-f, unless the m3.bin qualifies

Konrad