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[109.206.198.27]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6aab38a9756sm3306589a12.25.2026.09.24.00.14.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Sep 2026 00:14:50 -0700 (PDT) From: Adam Wermuth To: Heiko Stuebner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Adam Wermuth Subject: [PATCH 1/3] arm64: dts: rockchip: Enable USB 2.0 host1 on Radxa ROCK 3B Date: Thu, 24 Sep 2026 09:14:43 +0200 Message-ID: <20260924071445.441822-2-adam@wermuth.pl> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260924071445.441822-1-adam@wermuth.pl> References: <20260924071445.441822-1-adam@wermuth.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The USB 2.0 data lines of the M.2 B-key slot are routed to USB2_HOST3, which is served by usb_host1_ehci/ohci through the host port of usb2phy1. Enable the controllers and the PHY port so that modules in the B-key slot, such as LTE modems, can enumerate. Signed-off-by: Adam Wermuth --- arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/b= oot/dts/rockchip/rk3568-rock-3b.dts index 149a5306bb03..ad9a91c0d0d0 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts @@ -758,6 +758,14 @@ &usb_host0_xhci { status =3D "okay"; }; =20 +&usb_host1_ehci { + status =3D "okay"; +}; + +&usb_host1_ohci { + status =3D "okay"; +}; + &usb_host1_xhci { status =3D "okay"; }; @@ -780,6 +788,11 @@ &usb2phy1 { status =3D "okay"; }; =20 +&usb2phy1_host { + phy-supply =3D <&vcc5v0_usb_host>; + status =3D "okay"; +}; + &usb2phy1_otg { phy-supply =3D <&vcc5v0_usb_host>; status =3D "okay"; --=20 2.43.0 From nobody Thu Sep 24 12:59:28 2026 Received: from mail-ed2-f29.google.com (mail-ed2-f29.google.com [74.125.228.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65DAB3D6498 for ; 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[109.206.198.27]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6aab38a9756sm3306589a12.25.2026.09.24.00.14.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Sep 2026 00:14:52 -0700 (PDT) From: Adam Wermuth To: Heiko Stuebner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Adam Wermuth Subject: [PATCH 2/3] arm64: dts: rockchip: Enable M.2 B-key WWAN slot on Radxa ROCK 3B Date: Thu, 24 Sep 2026 09:14:44 +0200 Message-ID: <20260924071445.441822-3-adam@wermuth.pl> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260924071445.441822-1-adam@wermuth.pl> References: <20260924071445.441822-1-adam@wermuth.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The M.2 B-key slot on the ROCK 3B is controlled by three GPIOs: - GPIO0_C6 (4G_PWREN_H) enables the 3.3V supply of the slot, which is generated from vcc5v0_sys by a dedicated buck converter, - GPIO0_D6 (4G_RESET) drives the RESET# signal of the slot, - GPIO1_B0 (4G_DISABLE) drives W_DISABLE1#. Unless the supply is enabled and both active-low signals are deasserted, the module never enumerates on USB. Describe the supply as an always-on fixed regulator and hog RESET# and W_DISABLE1# in their inactive state. Tested with a SIMCom SIM7600G-H module. Signed-off-by: Adam Wermuth --- .../boot/dts/rockchip/rk3568-rock-3b.dts | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/b= oot/dts/rockchip/rk3568-rock-3b.dts index ad9a91c0d0d0..908bb4425e81 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts @@ -98,6 +98,20 @@ vcc3v3_sys2: regulator-3v3-vcc-sys2 { vin-supply =3D <&vcc5v0_sys>; }; =20 + vcc3v3_wwan: regulator-3v3-vcc-wwan { + compatible =3D "regulator-fixed"; + enable-active-high; + gpios =3D <&gpio0 RK_PC6 GPIO_ACTIVE_HIGH>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&wwan_pwren_h>; + regulator-name =3D "vcc3v3_wwan"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt =3D <3300000>; + regulator-max-microvolt =3D <3300000>; + vin-supply =3D <&vcc5v0_sys>; + }; + vcc5v0_sys: regulator-5v0-vcc-sys { compatible =3D "regulator-fixed"; regulator-name =3D "vcc5v0_sys"; @@ -220,6 +234,24 @@ &gmac1m1_rgmii_bus status =3D "okay"; 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[109.206.198.27]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6aab38a9756sm3306589a12.25.2026.09.24.00.14.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Sep 2026 00:14:54 -0700 (PDT) From: Adam Wermuth To: Heiko Stuebner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Adam Wermuth Subject: [PATCH 3/3] arm64: dts: rockchip: Add PWM fan to Radxa ROCK 3B Date: Thu, 24 Sep 2026 09:14:45 +0200 Message-ID: <20260924071445.441822-4-adam@wermuth.pl> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260924071445.441822-1-adam@wermuth.pl> References: <20260924071445.441822-1-adam@wermuth.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The ROCK 3B has a 2-pin fan header powered from vcc5v0_sys and switched by a MOSFET driven from PWM8 (pwm8m0 pins). Enable the PWM controller, describe the fan as a pwm-fan cooling device and add active trip points to the CPU thermal zone: - 50 C: fan at 25% - 60 C: fan at 50-75% - 70 C: fan at 100% each with 5 C hysteresis. The existing passive and critical trip points are left unchanged. Signed-off-by: Adam Wermuth --- .../boot/dts/rockchip/rk3568-rock-3b.dts | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/b= oot/dts/rockchip/rk3568-rock-3b.dts index 908bb4425e81..815f67988ab7 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts @@ -24,6 +24,14 @@ chosen { stdout-path =3D "serial2:1500000n8"; }; =20 + fan: fan { + compatible =3D "pwm-fan"; + cooling-levels =3D <0 64 128 192 255>; + fan-supply =3D <&vcc5v0_sys>; + pwms =3D <&pwm8 0 10000 0>; + #cooling-cells =3D <2>; + }; + hdmi-con { compatible =3D "hdmi-connector"; type =3D "a"; @@ -200,6 +208,45 @@ &cpu3 { cpu-supply =3D <&vdd_cpu>; }; =20 +&cpu_thermal { + trips { + cpu_fan0: cpu-fan0 { + hysteresis =3D <5000>; + temperature =3D <50000>; + type =3D "active"; + }; + + cpu_fan1: cpu-fan1 { + hysteresis =3D <5000>; + temperature =3D <60000>; + type =3D "active"; + }; + + cpu_fan2: cpu-fan2 { + hysteresis =3D <5000>; + temperature =3D <70000>; + type =3D "active"; + }; + }; + + cooling-maps { + map1 { + trip =3D <&cpu_fan0>; + cooling-device =3D <&fan THERMAL_NO_LIMIT 1>; + }; + + map2 { + trip =3D <&cpu_fan1>; + cooling-device =3D <&fan 2 3>; + }; + + map3 { + trip =3D <&cpu_fan2>; + cooling-device =3D <&fan 4 THERMAL_NO_LIMIT>; + }; + }; +}; + &gmac0 { assigned-clocks =3D <&cru SCLK_GMAC0_RX_TX>, <&cru SCLK_GMAC0>; assigned-clock-parents =3D <&cru SCLK_GMAC0_RGMII_SPEED>, <&cru CLK_MAC0_= 2TOP>; @@ -708,6 +755,10 @@ &pmu_io_domains { status =3D "okay"; }; =20 +&pwm8 { + status =3D "okay"; +}; + &saradc { vref-supply =3D <&vcca_1v8>; status =3D "okay"; --=20 2.43.0