From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F2C003A4F50; Tue, 25 Aug 2026 05:18:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787635098; cv=none; b=X207gAJ58Z5HY9xTwTAPcsk2ttiQe4FKqMiGQp3C40MhrrazEeidp87Jwr9cyhU2fewHMVLHHzSZWk5gmRouHOIebQ0/qTNi//vLT1kbeaduWThga8nR3tZeQZ1IeptukTjOdxAVP1dcoX1YbwUaFK1+xohogqnXuxK0n5f6uKE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787635098; c=relaxed/simple; bh=BneTF6Xp5rmyFqyxHB08Ui4BQSkX5TS6o9LZKizGA58=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=u+6JbMxJq8jBligKkPhzBt6NrKcEmLw91/XOIYxiwtFiam/N+PUfpMlYPCzR42vcKpP07+mk9RDexJ+zsVEdJzKKCD4xZDaS/XxbSGqeYhaDHtFgSzbBdenwcXV4mVOxPTUxw9pZcLBqxba6WsvsKWI/3NAkSBf8M4K/E7ypbv4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Xo47GiyG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Xo47GiyG" Received: by smtp.kernel.org (Postfix) with ESMTPS id 869E5C2BCF4; Tue, 25 Aug 2026 05:18:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1787635097; bh=BneTF6Xp5rmyFqyxHB08Ui4BQSkX5TS6o9LZKizGA58=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Xo47GiyGhMkdCipCKnOTrjdRaYBT1T/wWO/QvSfALphPWrzex6DcYWTs+Vt2nOjq9 Xa2vtj02c3W107E3vmCbJNAVf5auPLa1ADwTrSdNRuH/svFJA+YptsFejhMrV2sf5O pUOHLEplU3aq5jIAu8WwodeXKpGSIQbBMHR+AfpNMX1HToAJX/B0YOLrF+ZIwiLv4t XPtw7YkbPHu6igsNd5XmpFHQeXnaHhICbthZ7FOm4CIfLu7I4OKPAZmFJHelL2fQjO dVKYcpiL1BQOQPTt58iaQCVla/a1656cCHyQY+M6DgHKS0PSMB0BzDme/Z9ylJEHTv kjSMHQQFsEdwA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 741ECC5DF94; Tue, 25 Aug 2026 05:18:17 +0000 (UTC) From: Rudraksha Gupta via B4 Relay Date: Mon, 24 Aug 2026 22:18:16 -0700 Subject: [PATCH v2 1/2] arm64: dts: rockchip: Enable the EG25-G modem on the Pinephone Pro Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260824-ppp_connectivity-v2-1-a4b0e11cd62c@gmail.com> References: <20260824-ppp_connectivity-v2-0-a4b0e11cd62c@gmail.com> In-Reply-To: <20260824-ppp_connectivity-v2-0-a4b0e11cd62c@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Lee Jones , Michael Turquette , Stephen Boyd , Brian Masney Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Rudraksha Gupta , linux-clk@vger.kernel.org, mfd@lists.linux.dev, Martijn Braam X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787635096; l=3686; i=guptarud@gmail.com; s=20240916; h=from:subject:message-id; bh=BKJ8ewE7fSzmNjTVUblEb/3+hReBdcpXwAlKzQmJ6A0=; b=JfLuqZDAAFi4RexAkel6rjPxl7Ab5EWlSrS/LXNb9jOehBe8iOvV5AQVjfdUL7x/lasiDV5iu R8unLNmd0Z6D/Or9z5ISDXintJ2aTYSBlEXJcMEiUDgmot8YG/DQ+xQ X-Developer-Key: i=guptarud@gmail.com; a=ed25519; pk=ETrudRugWAtOpr0OhRiheQ1lXM4Kk4KGFnBySlKDi2I= X-Endpoint-Received: by B4 Relay for guptarud@gmail.com/20240916 with auth_id=211 X-Original-From: Rudraksha Gupta Reply-To: guptarud@gmail.com From: Martijn Braam The Quectel EG25-G modem is soldered to the board. It sits on the USB 2.0 host controller behind u2phy1, with uart3 as its AT command port, and draws from two switched rails: vcc_4g_5v off the RK818 boost, and vcc_4g off vcc_sys. Neither rail supplies anything but the modem, which has to stay powered for the board to work as a phone, so both are always-on. The modem itself has no binding and no in-kernel driver, so it is not described here; its control lines are driven from userspace. Based on work by Martijn Braam, Kamil Trzciński, Ondrej Jirman and Dang Huynh. Signed-off-by: Martijn Braam Signed-off-by: Rudraksha Gupta --- .../boot/dts/rockchip/rk3399-pinephone-pro.dts | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts index 8d26bd9b7500..8d2b6a46b39d 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts @@ -134,6 +134,32 @@ vcca1v8_s3: regulator-vcc1v8-s3 { regulator-boot-on; }; + vcc_4g: regulator-vcc-4g { + compatible = "regulator-fixed"; + enable-active-high; + gpio = <&gpio4 RK_PC7 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&vcc_4g_en>; + regulator-name = "vcc_4g"; + regulator-min-microvolt = <3800000>; + regulator-max-microvolt = <3800000>; + vin-supply = <&vcc_sys>; + regulator-always-on; + }; + + vcc_4g_5v: regulator-vcc-4g-5v { + compatible = "regulator-fixed"; + enable-active-high; + gpio = <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&vcc_4g_5v_en>; + regulator-name = "vcc_4g_5v"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&vcc5v0_sys>; + regulator-always-on; + }; + vcc1v8_codec: regulator-vcc1v8-codec { compatible = "regulator-fixed"; enable-active-high; @@ -264,6 +290,7 @@ rk818: pmic@1c { system-power-controller; wakeup-source; + boost-supply = <&vcc_sys>; vcc1-supply = <&vcc_sys>; vcc2-supply = <&vcc_sys>; vcc3-supply = <&vcc_sys>; @@ -318,6 +345,17 @@ regulator-state-mem { }; }; + vcc5v0_sys: DCDC_BOOST { + regulator-name = "vcc5v0_sys"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + vcca3v0_codec: LDO_REG1 { regulator-name = "vcca3v0_codec"; regulator-min-microvolt = <3000000>; @@ -702,6 +740,16 @@ blue_led_pin: blue-led-pin { }; }; + modem { + vcc_4g_5v_en: vcc-4g-5v-en-pin { + rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>; + }; + + vcc_4g_en: vcc-4g-en-pin { + rockchip,pins = <4 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + pmic { pmic_int_l: pmic-int-l { rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>; @@ -827,6 +875,15 @@ &tsadc { status = "okay"; }; +&u2phy1 { + status = "okay"; +}; + +&u2phy1_host { + phy-supply = <&vcc5v0_sys>; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>; @@ -852,6 +909,18 @@ &uart2 { status = "okay"; }; +&uart3 { + status = "okay"; +}; + +&usb_host1_ehci { + status = "okay"; +}; + +&usb_host1_ohci { + status = "okay"; +}; + &vopb { status = "okay"; assigned-clocks = <&cru DCLK_VOP0_DIV>, <&cru DCLK_VOP0>, -- 2.55.0