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[188.152.100.94]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483b820def3sm50829565e9.2.2026.02.24.06.57.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Feb 2026 06:57:12 -0800 (PST) Date: Tue, 24 Feb 2026 15:57:10 +0100 From: Stefano Radaelli To: Frank Li Cc: Fabio Estevam , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Stefano Radaelli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sascha Hauer , Pengutronix Kernel Team Subject: Re: [PATCH v1 06/11] arm64: dts: freescale: imx8mm-var-som: Update WiFi/BT configuration Message-ID: References: <3e79c4d806b8b8024b71bc99c36b09a2fbb90a65.1771353301.git.stefano.r@variscite.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260224_065715_186123_253666EA X-CRM114-Status: GOOD ( 27.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello everyone, On Wed, Feb 18, 2026 at 06:18:16PM +0100, Stefano Radaelli wrote: > Hi Frank, > > On Wed, Feb 18, 2026 at 11:35:23AM -0500, Frank Li wrote: > > On Tue, Feb 17, 2026 at 08:42:19PM +0100, Stefano Radaelli wrote: > > > Hi Fabio! > > > > > > On Tue, Feb 17, 2026 at 03:59:33PM -0300, Fabio Estevam wrote: > > > > > > > > What about users who still have boards with the Broadcom Wi-Fi chip? > > > > > > > > Will Wifi on the old boards stop working? > > > > > > The Broadcom-based WiFi module was used on earlier revisions of the > > > VAR-SOM-MX8MM. That hardware revision is no longer in production and > > > is not available for new orders. All currently manufactured and shipped > > > VAR-SOM-MX8MM modules integrate the NXP IW61x instead. > > > > This common problem, we met similar case. After replace new compenent, it > > should be new boards, or new revision. > > > > I don't suggest directly replace it to broken old one. You can create dt > > overlay files for new boards. > > > > Krzysztof Kozlowski: > > how about other vendor handle similar case? Any guide line for > > that? > > > > Frank > > > > Thanks for the feedback! > > We understand the concern about potential regressions on older SOM > revisions. However, since the wireless module is soldered on the SOM > and not configurable, we are aligning the upstream device tree with > the hardware revision that is currently in production. > > This change also aligns the i.MX8MM VAR-SOM with other VAR-SOM > platforms already present in mainline (e.g. i.MX8MP, i.MX93), which > use the IW61x wireless module as well. The intention is to keep the > VAR-SOM family consistent in mainline with the hardware that is > actively produced. > > If there is a strong requirement to preserve an explicit description > of the older Broadcom-based revision in mainline, we can evaluate > adding a separate description. > > Best regards, > Stefano Do you have any update about this topic? Thank you a lot, Best Regards, Stefano