From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 47765451998; Thu, 27 Aug 2026 15:33:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787844797; cv=none; b=DZwJcOxiU0dWEg3zRYfVNwL0m/eRwgP3pZTg7R015+jW8xjFVI+Wx5cBqHyijyrAMGAJfIstnCeqKKNCB81kEg6LT8iZJo8EMDMvrmSWTsaXnRpf7Od0tfhLJjsx6naFhzPaLrt1XIrFGv5+TtDBUn+m1SVSX9lPtf6bu3Senwg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787844797; c=relaxed/simple; bh=drsQcz7vpLHCPTbJHf54XFIKntywsoBGoQH3UYvoEbE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=LkMoR1szY9e+YGwrNKwPtqfcZCHmVeS55jL3aXlkYQYmLWd12pePS2ZGztVDDcu2EgpsOeSaWQI0H8z/npvmg3JSAaEepOACdVzDcra9moYeJC0q0pb+/aahgJbKf8czGYs03MYblQCTN6CZQ0JXhNpl+6Ta/mrtXwsDaOI88No= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EkNYY/2T; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EkNYY/2T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCE3B1F000E9; Thu, 27 Aug 2026 15:33:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787844796; bh=4oPsdO8UvwcZK2FdI47sHipp2PYwd210CEtnNDq551M=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=EkNYY/2TymrOw7w04hBE9IzFqwAjn5BgIOiM6RWUrh5Qfag3j75kKyb4vFjwl82Y5 eN4wrbtBg7rSkenawg9mXdvqwt8Gxnn0qe0Xsh1uhNF5NTiNml1qchqWzC0fOcXsd1 6O9D1qnQsjw4oie5swpFjwE790AdyxOibGLbMp0zdm+9+WmnVSbmke7Cg34vww2oz1 tlmx7K/+Mv1dzXxGj4bLlUMFgcA7+iBh0b4S3ZZTNqomzOB086eTD/mOYn/QnvVFd0 SzDsoGoZUCnzIHbfVnon2aV2/STL73s7N5BvjyFTuCO3CeJUcDP6vVqv8+Ny7aYpI0 3iJd3sClIgkYg== Message-ID: Date: Thu, 27 Aug 2026 17:33:02 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 2/3] wifi: mwifiex: add dt flag to avoid conflict with platform reg domain To: Georgi Valkov , briannorris@chromium.org, johannes@sipsolutions.net, andrew@lunn.ch, krzk+dt@kernel.org Cc: francesco@dolcini.it, johannes.berg@intel.com, kees@kernel.org, miriam.rachel.korenblit@intel.com, rongqianfeng@vivo.com, wenst@chromium.org, rafael.beims@toradex.com, avraham.stern@intel.com, error27@gmail.com, s.kerkmann@pengutronix.de, gregory.clement@bootlin.com, sebastian.hesselbarth@gmail.com, robh@kernel.org, conor+dt@kernel.org, Frank.Li@nxp.com, chunfan.chen@gmail.com, arend.vanspriel@broadcom.com, peddolla.reddy@oss.qualcomm.com, linux-arm-kernel@lists.infradead.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, stable@vger.kernel.org References: <20260827130335.6606-1-gvalkov@gmail.com> <20260827130335.6606-2-gvalkov@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 27/08/2026 15:03, 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. > > The change affects only platforms which explicitly define this flag, and > helps overcome the incorrect behaviour of proprietary radio firmware. > > [1] https://github.com/kaloz/mwlwifi/issues/173#issuecomment-307879699 > [2] https://github.com/openwrt/openwrt/issues/9956 > > Tested-on: WRT3200ACM, OpenWrt OK, so this comment from v6 was not about binding, but this is still wrong - there is no such tag. Just make it a standard sentence. Do not introduce OpenWRT rules in to the upstream kernel. Best regards, Krzysztof