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[79.37.15.246]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b80234a2786sm232719666b.49.2025.12.18.05.23.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Dec 2025 05:23:23 -0800 (PST) From: Andrea della Porta X-Google-Original-From: Andrea della Porta Date: Thu, 18 Dec 2025 14:25:56 +0100 To: "Rob Herring (Arm)" Cc: Florian Fainelli , bcm-kernel-feedback-list@broadcom.com, Krzysztof Kozlowski , Conor Dooley , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, andrea.porta@suse.com Subject: Re: [PATCH v2] arm64: broadcom: bcm2712: Drop rp1 overlay Message-ID: References: <20251211193854.1778221-1-robh@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251211193854.1778221-1-robh@kernel.org> Hi Rob, On 13:38 Thu 11 Dec , Rob Herring (Arm) wrote: > It's a requirement that DT overlays be applied at build time in order to > validate them as overlays are not validated on their own, but the > rp1.dtbo is not applied to anything. The rp1.dtso overlay doesn't work > on its own as there are additional settings needed as seen in > bcm2712-rpi-5-b.dts. In addition, the 'rp1_nexus' node is applied to the > wrong place in the DT as it should be under a PCIe root port rather than > the host bridge. There's also a duplicate overlay in drivers/misc/rp1/. > > For these reasons, just drop the overlay to fix the warning until all > these issues can be fixed. > > Signed-off-by: Rob Herring (Arm) > --- > The missing applying of rp1.dtbo is now a warning in v6.19-rc1. This > should be sent to Linus ASAP. > > v2: > - Drop the overlay instead of trying to rework. The addition of > ethernet0 alias complicates that. > --- > arch/arm64/boot/dts/broadcom/Makefile | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile > index 83d45afc6588..031875a277d7 100644 > --- a/arch/arm64/boot/dts/broadcom/Makefile > +++ b/arch/arm64/boot/dts/broadcom/Makefile > @@ -14,8 +14,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \ > bcm2837-rpi-3-b.dtb \ > bcm2837-rpi-3-b-plus.dtb \ > bcm2837-rpi-cm3-io3.dtb \ > - bcm2837-rpi-zero-2-w.dtb \ > - rp1.dtbo > + bcm2837-rpi-zero-2-w.dtb I'm preparing a rework patch that drops the overlay too, it will fix this warning and the other concerns about RP1 DT hierarchy. Anyway, since this warning seems to annoy a lot of people, feel free to apply it in the meantime and I'll adapt accordingly, hence: Reviewed-by: Andrea della Porta Thanks, Andrea > > subdir-y += bcmbca > subdir-y += northstar2 > -- > 2.51.0 >