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Fri, 03 Jul 2026 10:02:08 -0700 (PDT) From: Andrea della Porta To: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , linux-pwm@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , Andrea della Porta , 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 , mbrugger@suse.com, Sean Young , Julian Braha Subject: [PATCH v6 3/3] arm64: dts: broadcom: rpi-5: Add RP1 PWM node Date: Fri, 3 Jul 2026 19:05:26 +0200 Message-ID: <300b6fb4ba2c9399297b4bd85cbb3bc14f08f6b7.1783097764.git.andrea.porta@suse.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- 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"; }; -- 2.35.3