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From: Janne Grunau <j@jannau.net>
To: "Sven Peter" <sven@kernel.org>, "Neal Gompa" <neal@gompa.dev>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
	"Manivannan Sadhasivam" <mani@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Mark Kettenis" <kettenis@openbsd.org>,
	"Joshua Peisach" <jpeisach@ubuntu.com>,
	"Michael Reeves" <michael.reeves077@gmail.com>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	 linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
	 linux-kernel@vger.kernel.org, Janne Grunau <j@jannau.net>
Subject: [PATCH 1/7] arm64: dts: apple: t8122: Keep ps_apcie_phy_sw always-on
Date: Thu, 05 Nov 2026 12:35:58 +0100	[thread overview]
Message-ID: <20261105-apple-m3-pcie-v1-1-e00a72a604f8@jannau.net> (raw)
In-Reply-To: <20261105-apple-m3-pcie-v1-0-e00a72a604f8@jannau.net>

The APCIE_PHY_SW power state is in Apple's device tree a child of the
virtual storage and general purpose PCIe power-states. MacOS however
keeps it always powered on. Mirror this behaviour like the M2 Pro/Max
device trees already do in t602x-pgmr.dtsi.

Fixes: c65ab4905e58 ("arm64: dts: apple: Initial t8122 (M3) device trees")
Signed-off-by: Janne Grunau <j@jannau.net>
---
 arch/arm64/boot/dts/apple/t8122-pmgr.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/apple/t8122-pmgr.dtsi b/arch/arm64/boot/dts/apple/t8122-pmgr.dtsi
index 3f8be74b5ea8..3206787dd208 100644
--- a/arch/arm64/boot/dts/apple/t8122-pmgr.dtsi
+++ b/arch/arm64/boot/dts/apple/t8122-pmgr.dtsi
@@ -899,7 +899,7 @@ ps_apcie_phy_sw: power-controller@4a0 {
 		#power-domain-cells = <0>;
 		#reset-cells = <0>;
 		label = "apcie_phy_sw";
-		power-domains = <&ps_apcie_st>, <&ps_apcie_gp>;
+		apple,always-on; /* macOS does not turn this off */
 	};
 
 	ps_atc0_cio_pcie: power-controller@4a8 {

-- 
2.56.0


  reply	other threads:[~2026-11-05 11:36 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-05 11:35 [PATCH 0/7] Apple M3, M3 Pro/Max/Ultra PCIe device trees Janne Grunau
2026-11-05 11:35 ` Janne Grunau [this message]
2026-11-05 11:35 ` [PATCH 2/7] dt-bindings: pci: apple,pcie: Add compatibles for M3 SoCs Janne Grunau
2026-11-05 19:33   ` Bjorn Helgaas
2026-11-05 11:36 ` [PATCH 3/7] arm64: dts: apple: t6030: Add PCIe nodes Janne Grunau
2026-11-05 11:36 ` [PATCH 4/7] arm64: dts: apple: t6031: " Janne Grunau
2026-11-05 11:36 ` [PATCH 5/7] arm64: dts: apple: t8122: Add PCIe device nodes Janne Grunau
2026-11-05 11:36 ` [PATCH 6/7] arm64: dts: apple: t603x-j514-j516: " Janne Grunau
2026-11-05 11:36 ` [PATCH 7/7] arm64: dts: apple: t6032-j575d: " Janne Grunau

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