Re: [PATCH v8 3/3] ARM: dts: armada: WRT3200ACM: add marvell,invalid-reg-hint-in-rom

[Francesco Dolcini]

On 27 August 2026 20:02:27 CEST, George Valkov <gvalkov@xxxxxxxxx> wrote:
>On Thu, 27 Aug 2026 at 20:40, Francesco Dolcini <francesco@xxxxxxxxxx> wrote:
>>
>>
>>
>> On 27 August 2026 19:19:37 CEST, Georgi Valkov <gvalkov@xxxxxxxxx> wrote:
>> >WRT3200ACM and WRT32x routers always report a fixed US regulatory domain
>> >from the mwifiex ROM, which conflicts with the platform regulatory
>> >configuration on units sold outside the US market. For example:
>> >- phy0 mwlwifi 5 GHz, hard-coded region 98 EU mapped to FR
>> >- phy1 mwlwifi 2.4 GHz, hard-coded region 98 EU mapped to FR
>> >- phy2 mwifiex 2.4 and 5 GHz, hard-coded region US
>> >
>> >When the system boots, it detects a conflict between the user selected
>> >region and the radios, e.g. BG FR US, and applies extreme restrictions,
>> >preventing phy0 from starting on any DFS channel. phy2 works.
>> >
>> >Add node wifi@1 with a flag marvell,invalid-reg-hint-in-rom to the
>> >WRT3200ACM device-tree, which signals mwifiex that its regulatory
>> >hint from ROM conflicts with the platform and should be ignored, so the
>> >platform regulatory domain can be used. This does not allow the user to
>> >change the regulatory config of any radio. It only allows phy0 to start
>> >and operate according to its certified configuration. All radios in
>> >WRT3200ACM/WRT32x are locked to the hard-coded configuration for which
>> >they are certified.
>> >
>> >On WRT3200ACM, the platform configuration is stored on the devinfo mtd3
>> >partition, which is read-only: cert_region=EU modelNumber=WRT3200ACM-EU
>> >
>> >The Linux kernel sources do not have support for WRT32x. An equivalent
>> >patch for these routers has to be sent to OpenWrt.
>> >
>> >[1] https://github.com/kaloz/mwlwifi/issues/173#issuecomment-307879699
>> >[2] https://github.com/openwrt/openwrt/issues/9956
>> >
>> >Cc: stable@xxxxxxxxxxxxxxx
>>
>> This whole series is not material for stable. Please drop thia tag from all the patches.
>
>Dropped CC: stable from all patches, and sent v9:
>https://lore.kernel.org/linux-wireless/20260827175850.89395-1-gvalkov@xxxxxxxxx/T/#t

Please, you are not supposed to send a new patch series revision every time you get a single comment and you did send the previous version just 2 hours ago.

It does not work like that, you just create additional overhead.

I assume this is all documented, please look into the Documentation directory.