From nobody Tue Apr 7 22:01:06 2026 Received: from mail-pj1-f43.google.com (mail-pj1-f43.google.com [209.85.216.43]) (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 9D63E3C6A44 for ; Wed, 11 Mar 2026 11:55:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773230114; cv=none; b=NDWIaxbG9rT0RQ7g4FhIfZnGYy70Ep/mvg1/48hUd2KS6+C8bKj4kbUQreP64Fs/8ysq08D0vnqLU2zOlfNVX9THiGvN+2esUmjmkLmDlI70wvdoSICftLFbx7T2hETAOAo4lbUGJyHkSSoBPkzlUomybgTT2QhwLYjfBE/udJ4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773230114; c=relaxed/simple; bh=D3H2n8eDK8yJykuaw8f5oXDSSGtOXEXmSSaisfcxnNA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=VRwm9lnMGMfsBNTlG2pWPSgWqn9pvikyKE7lhufbmf7oUtuZp3Xl/SBp3uIG15JwnFbuQWEj4WRFaUiSCTZW5BtvkK0MYUEO7oJIt4PauxhxPNwVUb8bU2UqyZB1l+mL9pbqP+PT6QEvRAqq8zT5qqygY52hkIz+tjoNuXBjb24= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ALZZiaqh; arc=none smtp.client-ip=209.85.216.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ALZZiaqh" Received: by mail-pj1-f43.google.com with SMTP id 98e67ed59e1d1-35a02ed9cbaso266061a91.0 for ; Wed, 11 Mar 2026 04:55:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1773230113; x=1773834913; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=tqpPz9P0T3i29nFtjm5Cg8H+Ilq/OTzWCRX5bsan7QQ=; b=ALZZiaqh7/x7PkFOh13By2PS/bNRQ01Hr8W6yGp9bV5zuptsf8tk3wA1/VhNCazLcp Ap5ZV0EEVE1r87BwTl1vB3XgxT+hseIsR6OzGwmpzSwlRqHeh3t/GYyipm+XCDOv3xKL Z9XoSCwj9TGDcISSLeuQSj66mM8NLtj5Y8HHi3LFOPByUPizHF5ispZfqYB9U81YLVEn SSIXDrekqzu+tWHZfknxkje7XWWSTSsRKK/Jx0P6HdsX0wc1PMq41241RrFTkXiH4zqQ IAn9Oy2M/6AtItBfpXpnax/kGYWyHU8zSk/UnkF8kVAdoRgGHCyecHRy8VeWoOwYUfsn TdWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773230113; x=1773834913; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=tqpPz9P0T3i29nFtjm5Cg8H+Ilq/OTzWCRX5bsan7QQ=; b=GeBrys1KWRCWpGuPvwYt1ebl9lmKvx/F1cfCQn30zT+bq+RJTd1teBHgCDnxhkLNOR INpLDc5WZDF5jGz9G5zlLBngh7AJUlXxBT6oXMDZE7ruMxhwE66Az2k5W58XR4VHnWhc x8QTCNqvBGd8wiQABT7aTVQ+jCblBaM42mbMBrZt8IfGiiVagTuGP7Rvw/sqVFmAFaK7 v67V5ee2aKvLV7GR9RaAp4wDipfMw4QqP5Y+siKjsKhcGiCBWXERo7RJc3ZUqMT47VCz Johh6XWBJA2zT3x2IySCeKZ33G4LgFyR+U6KdG+C3uk/aPQ1189K8mF5hjoIHuP1Ijtu qK+A== X-Forwarded-Encrypted: i=1; AJvYcCUPsp7oEhu3EakENuiHDVIlUEb8NY/DRJD7uTnCg7lSTQjlKv3Kvn70az/ScYrjkqeVZrOMYhblvVxwoKA=@vger.kernel.org X-Gm-Message-State: AOJu0YyT/NjhZLyGPvPM7t62fs+IJVX3Bb2avGA+yRgv6GvLDaVMXBMr fs1k4R5VapaDOwJzVBG3yd2ccYc7HLZmCV0b02VOfZzKMACtXKfEVCbE X-Gm-Gg: ATEYQzyZcUrCtN65HUWBAsrS3COL/SKPcwxpvgpG+pAvpebQaYDmm7KU+6ErDnR9sCo CVyaS4JJRoZw0E+t5PFVnsVpe3lDgtT/Ly5jb4plIN+7dYVOvsYgiccnlMFCWUkdy4Q2RvYOMq1 RVRaXheMAq9iiTLfzCMS6KTyYluu3UDXAmQbPg9PyYb0GRy6VgX7f+4Y/+Y8/l3+G2pniRWEyne MayCGA9t3OzXjoBE+qTL+e42iH36YZ0YylfAGKplWDNvE7kpUabzRGlIR6sJRSn6PA7D3+ySVvp UYrvXh9kNdwXLFI4+SAfmfcrC+q4BZPf0KOBGGwktvpaUKrwqUCsOGFERr7z27Y/acuZ9AFRsNl E0e1jAOLxIlaHBIFqz3NiNhaYCNXt+le+F5EV9jMoG0kKMxboJnMQNvc+vBzXm1ujWti9ok0GDB 5xYmXH5yCGnk1zfQc50cZyGJOrys4kAOo= X-Received: by 2002:a17:90b:2e52:b0:359:f5f4:7740 with SMTP id 98e67ed59e1d1-35a02830179mr1816790a91.17.1773230112844; Wed, 11 Mar 2026 04:55:12 -0700 (PDT) Received: from rockpi-5b ([45.112.0.200]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-359f01004f7sm5731790a91.0.2026.03.11.04.55.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2026 04:55:12 -0700 (PDT) From: Anand Moon To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , FUKAUMI Naoki , Nicolas Frattaroli , Sebastian Reichel , Diederik de Haas , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Rockchip SoC support), linux-rockchip@lists.infradead.org (open list:ARM/Rockchip SoC support), linux-kernel@vger.kernel.org (open list) Cc: Anand Moon , Shawn Lin Subject: [PATCH v1] arm64: dts: rockchip: Enable PCIe CLKREQ# for RK3588 on Rock 5b-5bp-5t series Date: Wed, 11 Mar 2026 17:24:30 +0530 Message-ID: <20260311115502.7353-1-linux.amoon@gmail.com> X-Mailer: git-send-email 2.50.1 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" Add supports-clkreq and the corresponding pinmux configurations for PCIe ASPM L1 substates on the Rock 5B, 5B+, and 5T. The supports-clkreq flag informs the PCIe controller that the hardware routing for the CLKREQ# sideband signal is present. This enables support for PCIe ASPM (Active State Power Management) L1 substates, allowing for better power efficiency. Cc: Shawn Lin Signed-off-by: Anand Moon --- arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi b/arch= /arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi index b3e76ad2d869..668b19c05f7e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi @@ -468,7 +468,8 @@ map1 { =20 &pcie2x1l0 { pinctrl-names =3D "default"; - pinctrl-0 =3D <&pcie2_0_rst>; + pinctrl-0 =3D <&pcie2_0_rst>, <&pcie30x1m1_0_clkreqn>; + supports-clkreq; reset-gpios =3D <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>; vpcie3v3-supply =3D <&vcc3v3_pcie2x1l0>; status =3D "okay"; @@ -476,7 +477,8 @@ &pcie2x1l0 { =20 &pcie2x1l2 { pinctrl-names =3D "default"; - pinctrl-0 =3D <&pcie2_2_rst>; + pinctrl-0 =3D <&pcie2_2_rst>, <&pcie20x1m0_clkreqn>; + supports-clkreq; reset-gpios =3D <&gpio3 RK_PB0 GPIO_ACTIVE_HIGH>; vpcie3v3-supply =3D <&vcc3v3_pcie2x1l2>; status =3D "okay"; @@ -488,7 +490,8 @@ &pcie30phy { =20 &pcie3x4 { pinctrl-names =3D "default"; - pinctrl-0 =3D <&pcie3_rst>; + pinctrl-0 =3D <&pcie3_rst>, <&pcie30x4m1_clkreqn>; + supports-clkreq; reset-gpios =3D <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>; vpcie3v3-supply =3D <&vcc3v3_pcie30>; status =3D "okay"; base-commit: b29fb8829bff243512bb8c8908fd39406f9fd4c3 --=20 2.50.1