{"id":2219597,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2219597/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pwm/patch/ef79e974c6680202294a4cfde7cc791753bf1b3e.1775223441.git.andrea.porta@suse.com/","project":{"id":38,"url":"http://patchwork.ozlabs.org/api/1.2/projects/38/?format=json","name":"Linux PWM development","link_name":"linux-pwm","list_id":"linux-pwm.vger.kernel.org","list_email":"linux-pwm@vger.kernel.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<ef79e974c6680202294a4cfde7cc791753bf1b3e.1775223441.git.andrea.porta@suse.com>","list_archive_url":null,"date":"2026-04-03T14:31:56","name":"[3/3] arm64: dts: broadcom: rp1: Add PWM node","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":false,"hash":"6950ab864a40e54cbdb59db118d5fd45eecbc51b","submitter":{"id":88172,"url":"http://patchwork.ozlabs.org/api/1.2/people/88172/?format=json","name":"Andrea della Porta","email":"andrea.porta@suse.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pwm/patch/ef79e974c6680202294a4cfde7cc791753bf1b3e.1775223441.git.andrea.porta@suse.com/mbox/","series":[{"id":498637,"url":"http://patchwork.ozlabs.org/api/1.2/series/498637/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pwm/list/?series=498637","date":"2026-04-03T14:31:53","name":"Add RP1 PWM controller support","version":1,"mbox":"http://patchwork.ozlabs.org/series/498637/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2219597/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2219597/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n 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(PDT)","From":"Andrea della Porta <andrea.porta@suse.com>","To":"=?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <ukleinek@kernel.org>,\n linux-pwm@vger.kernel.org, Rob Herring <robh@kernel.org>,\n Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>,\n Florian Fainelli <florian.fainelli@broadcom.com>,\n Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>,\n Andrea della Porta <andrea.porta@suse.com>, devicetree@vger.kernel.org,\n linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org,\n linux-kernel@vger.kernel.org, Naushir Patuck <naush@raspberrypi.com>,\n Stanimir Varbanov <svarbanov@suse.de>","Subject":"[PATCH 3/3] arm64: dts: broadcom: rp1: Add PWM node","Date":"Fri,  3 Apr 2026 16:31:56 +0200","Message-ID":"\n <ef79e974c6680202294a4cfde7cc791753bf1b3e.1775223441.git.andrea.porta@suse.com>","X-Mailer":"git-send-email 2.51.0","In-Reply-To":"<cover.1775223441.git.andrea.porta@suse.com>","References":"<cover.1775223441.git.andrea.porta@suse.com>","Precedence":"bulk","X-Mailing-List":"linux-pwm@vger.kernel.org","List-Id":"<linux-pwm.vger.kernel.org>","List-Subscribe":"<mailto:linux-pwm+subscribe@vger.kernel.org>","List-Unsubscribe":"<mailto:linux-pwm+unsubscribe@vger.kernel.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit"},"content":"From: Stanimir Varbanov <svarbanov@suse.de>\n\nThe RP1 chipset used on the Raspberry Pi 5 features an integrated\nPWM controller to drive the cooling fan.\n\nAdd the corresponding DT node for this PWM controller.\n\nSigned-off-by: Stanimir Varbanov <svarbanov@suse.de>\nCo-developed-by: Andrea della Porta <andrea.porta@suse.com>\nSigned-off-by: Andrea della Porta <andrea.porta@suse.com>\n---\n arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts | 12 ++++++++++++\n arch/arm64/boot/dts/broadcom/rp1-common.dtsi     | 10 ++++++++++\n 2 files changed, 22 insertions(+)","diff":"diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts\nindex 2856082814462..a4e5ba23bf536 100644\n--- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts\n+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts\n@@ -64,12 +64,24 @@ phy1: ethernet-phy@1 {\n };\n \n &rp1_gpio {\n+\tfan_pwm_default_state: fan-pwm-default-state {\n+\t\tfunction = \"pwm1\";\n+\t\tpins = \"gpio45\";\n+\t\tbias-pull-down;\n+\t};\n+\n \tusb_vbus_default_state: usb-vbus-default-state {\n \t\tfunction = \"vbus1\";\n \t\tgroups = \"vbus1\";\n \t};\n };\n \n+&rp1_pwm {\n+\tpinctrl-0 = <&fan_pwm_default_state>;\n+\tpinctrl-names = \"default\";\n+\tstatus = \"okay\";\n+};\n+\n &rp1_usb0 {\n \tpinctrl-0 = <&usb_vbus_default_state>;\n \tpinctrl-names = \"default\";\ndiff --git a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi\nindex 5a815c3797945..7e78501e62b0c 100644\n--- a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi\n+++ b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi\n@@ -56,6 +56,16 @@ rp1_eth: ethernet@40100000 {\n \t\t#size-cells = <0>;\n \t};\n \n+\trp1_pwm: pwm@4009c000 {\n+\t\tcompatible = \"raspberrypi,rp1-pwm\";\n+\t\treg = <0x00 0x4009c000  0x0 0x100>;\n+\t\tclocks = <&rp1_clocks RP1_CLK_PWM1>;\n+\t\tassigned-clocks = <&rp1_clocks RP1_CLK_PWM1>;\n+\t\tassigned-clock-rates = <50000000>;\n+\t\t#pwm-cells = <3>;\n+\t\tstatus = \"disabled\";\n+\t};\n+\n \trp1_usb0: usb@40200000 {\n \t\tcompatible = \"snps,dwc3\";\n \t\treg = <0x00 0x40200000  0x0 0x100000>;\n","prefixes":["3/3"]}