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[85.85.171.48]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69a19ce4ad4sm5751522a12.12.2026.07.07.05.43.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Jul 2026 05:44:01 -0700 (PDT) Message-ID: <53f3621f-3888-45f3-b319-95efa36fb0f2@suse.com> Date: Tue, 7 Jul 2026 14:43:59 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 3/3] arm64: dts: broadcom: rpi-5: Add RP1 PWM node To: Andrea della Porta , =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?= , linux-pwm@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Naushir Patuck , Stanimir Varbanov , Sean Young , Julian Braha References: <300b6fb4ba2c9399297b4bd85cbb3bc14f08f6b7.1783097764.git.andrea.porta@suse.com> Content-Language: en-US, ca-ES, es-ES From: Matthias Brugger Autocrypt: addr=mbrugger@suse.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260707_054403_659695_EA6A756D X-CRM114-Status: GOOD ( 15.74 ) 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 On 03/07/2026 19:05, Andrea della Porta wrote: > From: Stanimir Varbanov > > The RP1 chipset used on the Raspberry Pi 5 features an integrated > PWM controller to drive the cooling fan. > > Add the corresponding DT node for this PWM controller. > > Signed-off-by: Stanimir Varbanov > Co-developed-by: Andrea della Porta > Signed-off-by: Andrea della Porta Reviewed-by: Matthias Brugger > --- > arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts | 12 ++++++++++++ > arch/arm64/boot/dts/broadcom/rp1-common.dtsi | 9 +++++++++ > 2 files changed, 21 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 0fc57e72632ed..748be8f1ee9e2 100644 > --- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts > +++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts > @@ -64,6 +64,12 @@ phy1: ethernet-phy@1 { > }; > > &rp1_gpio { > + fan_pwm_default_state: fan-pwm-default-state { > + function = "pwm1"; > + pins = "gpio45"; > + bias-pull-down; > + }; > + > usb_vbus_default_state: usb-vbus-default-state { > function = "vbus1"; > groups = "vbus1"; > @@ -94,6 +100,12 @@ &rp1_i2c6 { > pinctrl-names = "default"; > }; > > +&rp1_pwm1 { > + pinctrl-0 = <&fan_pwm_default_state>; > + pinctrl-names = "default"; > + status = "okay"; > +}; > + > &rp1_usb0 { > pinctrl-0 = <&usb_vbus_default_state>; > pinctrl-names = "default"; > diff --git a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi > index 16f5359395835..df4c2d09c8d34 100644 > --- a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi > +++ b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi > @@ -99,7 +99,16 @@ rp1_i2c6: i2c@40088000 { > clocks = <&rp1_clocks RP1_CLK_SYS>; > i2c-scl-rising-time-ns = <65>; > i2c-scl-falling-time-ns = <100>; > + status = "disabled"; > + }; > > + rp1_pwm1: pwm@4009c000 { > + compatible = "raspberrypi,rp1-pwm"; > + reg = <0x00 0x4009c000 0x0 0x100>; > + clocks = <&rp1_clocks RP1_CLK_PWM1>; > + assigned-clocks = <&rp1_clocks RP1_CLK_PWM1>; > + assigned-clock-rates = <50000000>; > + #pwm-cells = <3>; > status = "disabled"; > }; >