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[93.44.188.26]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-acb3d34a5a8sm174672666b.183.2025.04.16.11.40.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Apr 2025 11:40:15 -0700 (PDT) From: Andrea della Porta X-Google-Original-From: Andrea della Porta Date: Wed, 16 Apr 2025 20:41:37 +0200 To: Stefan Wahren Cc: Andrea della Porta , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , Lorenzo Pieralisi , Krzysztof Wilczynski , Manivannan Sadhasivam , Bjorn Helgaas , Linus Walleij , Catalin Marinas , Will Deacon , Bartosz Golaszewski , Derek Kiernan , Dragan Cvetic , Arnd Bergmann , Greg Kroah-Hartman , Saravana Kannan , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-gpio@vger.kernel.org, Masahiro Yamada , Herve Codina , Luca Ceresoli , Thomas Petazzoni , Andrew Lunn , Phil Elwell , Dave Stevenson , kernel-list@raspberrypi.com Subject: Re: [PATCH v8 11/13] arm64: dts: bcm2712: Add external clock for RP1 chipset on Rpi5 Message-ID: References: <7c26a0b52e00a39930ba02f7552abdd1be4c828c.1742418429.git.andrea.porta@suse.com> <45c1a50c-2ecd-4201-85e5-9a0e94f06fa3@gmx.net> Precedence: bulk X-Mailing-List: devicetree@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: <45c1a50c-2ecd-4201-85e5-9a0e94f06fa3@gmx.net> Hi Stefan, On 13:55 Mon 14 Apr , Stefan Wahren wrote: > Hi Andrea, > > Am 19.03.25 um 22:52 schrieb Andrea della Porta: > > The RP1 found on Raspberry Pi 5 board needs an external crystal at 50MHz. > > Add clk_rp1_xosc node to provide that. > > > > Signed-off-by: Andrea della Porta > > Reviewed-by: Florian Fainelli > i'm fine with the patch content, but I think this is necessary before > Patch 9 is applied? True. Thanks for pointing that out. Cheers, Andrea > > --- > > arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts | 7 +++++++ > > 1 file changed, 7 insertions(+) > > > > diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts > > index fbc56309660f..1850a575e708 100644 > > --- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts > > +++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts > > @@ -16,6 +16,13 @@ chosen: chosen { > > stdout-path = "serial10:115200n8"; > > }; > > > > + clk_rp1_xosc: clock-50000000 { > > + compatible = "fixed-clock"; > > + #clock-cells = <0>; > > + clock-output-names = "rp1-xosc"; > > + clock-frequency = <50000000>; > > + }; > > + > > /* Will be filled by the bootloader */ > > memory@0 { > > device_type = "memory"; >