Re: [PATCH v6 1/3] dt-bindings: net: wireless: add flag marvell,invalid-reg-hint-in-rom

[Krzysztof Kozlowski]

On Fri, Aug 21, 2026 at 04:07:26AM +0300, Georgi Valkov 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 a device-tree flag, which allows affected devices, where the radio
> conflicts with the platform to ignore the incorrect regulatory hint in
> the ROM of the radio, so the platform regulatory domain can be used.
> This does not allow the user to change the regulatory configuration of
> any radio. It only allows phy0 to start and operate according to its
> certified configuration.
> 
> [1] https://github.com/kaloz/mwlwifi/issues/173#issuecomment-307879699
> [2] https://github.com/openwrt/openwrt/issues/9956
> 
> Cc: stable@xxxxxxxxxxxxxxx

I don't think there is any bug to be fixed here. Support was incomplete,
so you add a missing quirk, but there was no bug in the binding.
Binding was correct.

With stable dropped:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>

Best regards,
Krzysztof