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

On Thu, 27 Aug 2026 at 21:05, Francesco Dolcini <[email protected]> wrote:
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> On 27 August 2026 20:02:27 CEST, George Valkov <[email protected]> wrote:
> >On Thu, 27 Aug 2026 at 20:40, Francesco Dolcini <[email protected]> wrote:
> >>
> >>
> >>
> >> On 27 August 2026 19:19:37 CEST, Georgi Valkov <[email protected]> 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: [email protected]
> >>
> >> 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/[email protected]/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.

ok, I will make sure to wait for a few days in the future. I apologise!

Georgi Valkov