From nobody Mon Feb 9 23:28:39 2026 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 7555C217F35; Wed, 16 Apr 2025 18:06:23 +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=1744826783; cv=none; b=UWGLc+ZbOdOz6UWKntaMW4NgMyDGcuBP0rVukV00Jcu7TFr2uPPHmHuLDMEAQPGMuBTIDsYrmvLUtstPobb3AQ1e79d9Kj1gASVdu/E9DwaOnOgkpSQXGwvTfGAlfDUn0si0TLFhZ3bgYJkfQMz73J5D5XvQG9JBrJ9fO99ckk4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744826783; c=relaxed/simple; bh=PVkhubuFxAaW2HEyB3Yl5c1VtK6NW7DIrcdAG8enNZc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=jg5TJXFyEoEf0RmmeAOOstcmaf/WAtOyMXRNx20PdpXvfDMipYuJ0kXg4vi+LcnlP9yWY1K5jaG/P1cmM3YXZDDOgRFixrUnz9V/UQ/uFunKkF7/AXoXnzOcptVXiHUC980aD6Za3zks8HUPppj8N87DksDKiyv2NNhsufH9Vhg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Im2xwCnb; 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="Im2xwCnb" Received: by smtp.kernel.org (Postfix) with ESMTPS id CF97AC4CEE2; Wed, 16 Apr 2025 18:06:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744826782; bh=PVkhubuFxAaW2HEyB3Yl5c1VtK6NW7DIrcdAG8enNZc=; h=From:Date:Subject:To:Cc:Reply-To:From; b=Im2xwCnbuWvXprxRMFN95uCNBl4XFTCLZC5G3/pNuuqiITId0KO4AYAhS49Bfljri U3+tG0xNx4jDl4XH/iM6UUCVlV/QE378Y4zhkcHMv0raFO6cVuOg1CAw8ZyaGYCYiU glfjWAcaNQt0/RdqWGH6PC22Y6LKk3c3uCUlUvVUzLQefupDJt8/5s0pb/Q0OFnLt9 AhdNdrvB5fmJqlAQRGLgYuOqCk0uLsPrTxtKChK+MQd7cNN8W6gTCMejvWIDmsdzte NoLOAMUZE4jqdJlnyJNc0uQF2HAvaP4Wwao26xK1iBQbJkRThTR9CaRo/l8jmJYnCZ IrTQrCVfVhUTw== 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 B75D7C369BA; Wed, 16 Apr 2025 18:06:22 +0000 (UTC) From: Janne Grunau via B4 Relay Date: Wed, 16 Apr 2025 20:06:18 +0200 Subject: [PATCH] arm64: dts: apple: touchbar: Mark ps_dispdfr_be as always-on Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250416-arm64_dts_apple_touchbar-v1-1-e1c0b53b9125@jannau.net> X-B4-Tracking: v=1; b=H4sIAJnx/2cC/x3MywqAIBBA0V+JWSdUmD1+JUJMpxroIWNFEP170 vIs7n0gIBMGaJMHGC8KtG8ReZqAnc02oSAXDUVWlJnMlTC8KqndEbTxfkF97KedB8NClbV1TSU dNhXE3DOOdP/rrn/fD/MfiopqAAAA X-Change-ID: 20250416-arm64_dts_apple_touchbar-658cd974de97 To: Sven Peter , Alyssa Rosenzweig , Neal Gompa , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nick Chan , Sasha Finkelstein Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Janne Grunau X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2090; i=j@jannau.net; s=yk2024; h=from:subject:message-id; bh=vW+HnwVsI6HKFCWS8Ni6G5ezcLgPyLTobLTnqE3VCiY=; b=owGbwMvMwCW2UNrmdq9+ahrjabUkhvT/H+dWvp50jXemd5qQ38RFF3hTijMsYu7mde2Ydziu+ KpFdK5BRykLgxgXg6yYIkuS9ssOhtU1ijG1D8Jg5rAygQxh4OIUgIkY+zH8z965537Wq0sasRts wlRYNmew7NDQK/Cxvlme92LpL6YWXoY/PILfNx+xaZGRT/UpC81uWrzrNUvCNpd5TLmLLgRUvLj MAQA= X-Developer-Key: i=j@jannau.net; a=openpgp; fpr=8B336A6BE4E5695E89B8532B81E806F586338419 X-Endpoint-Received: by B4 Relay for j@jannau.net/yk2024 with auth_id=264 X-Original-From: Janne Grunau Reply-To: j@jannau.net From: Janne Grunau The driver depends on boot loader initialized state which resets when the ps_dispdfr_be power-domain is powered off. This happens on suspend or when the driver is missing during boot. Mark the domain as always on until the driver can handle this. Fixes: 7275e795e520 ("arm64: dts: apple: Add touchbar screen nodes") Signed-off-by: Janne Grunau Reviewed-by: Alyssa Rosenzweig --- arch/arm64/boot/dts/apple/t8103-j293.dts | 10 ++++++++++ arch/arm64/boot/dts/apple/t8112-j493.dts | 10 ++++++++++ 2 files changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts= /apple/t8103-j293.dts index 2dfe7b895b2bc0a913e73141e558fa5124a13b2e..e2d9439397f71a93c28b75a7eea= 589f4bcb3e374 100644 --- a/arch/arm64/boot/dts/apple/t8103-j293.dts +++ b/arch/arm64/boot/dts/apple/t8103-j293.dts @@ -77,6 +77,16 @@ touchbar0: touchbar@0 { }; }; =20 +/* + * The driver depends on boot loader initialized state which resets when t= his + * power-domain is powered off. This happens on suspend or when the driver= is + * missing during boot. Mark the domain as always on until the driver can + * handle this. + */ +&ps_dispdfr_be { + apple,always-on; +}; + &display_dfr { status =3D "okay"; }; diff --git a/arch/arm64/boot/dts/apple/t8112-j493.dts b/arch/arm64/boot/dts= /apple/t8112-j493.dts index 3d73f9ee2f46a35a3b23da5b233ef316c7372ef7..be86d34c6696cb47d3169654126= 6e504cee8ce10 100644 --- a/arch/arm64/boot/dts/apple/t8112-j493.dts +++ b/arch/arm64/boot/dts/apple/t8112-j493.dts @@ -40,6 +40,16 @@ led-0 { }; }; =20 +/* + * The driver depends on boot loader initialized state which resets when t= his + * power-domain is powered off. This happens on suspend or when the driver= is + * missing during boot. Mark the domain as always on until the driver can + * handle this. + */ +&ps_dispdfr_be { + apple,always-on; +}; + &display_dfr { status =3D "okay"; }; --- base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8 change-id: 20250416-arm64_dts_apple_touchbar-658cd974de97 Best regards, --=20 Janne Grunau