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Message-ID: <43bb639c120f599106fca2deee6c6599b2692c5c.1763415706.git.geraldogabriel@gmail.com>
Date: Mon, 17 Nov 2025 18:47:43 -0300
From: Geraldo Nascimento <geraldogabriel@...il.com>
To: Shawn Lin <shawn.lin@...k-chips.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof WilczyĆski <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
Heiko Stuebner <heiko@...ech.de>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Johan Jonker <jbx6244@...il.com>,
Geraldo Nascimento <geraldogabriel@...il.com>,
Dragan Simic <dsimic@...jaro.org>
Cc: linux-rockchip@...ts.infradead.org, linux-pci@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH v2 3/4] arm64: dts: rockchip: remove dangerous max-link-speed
from helios64
Shawn Lin from Rockchip strongly discourages attempts to use their
RK3399 PCIe core at 5.0 GT/s speed, citing concerns about catastrophic
failures that may happen. Even if the odds are low, drop from last user
of this non-default property for the RK3399 platform, helios64 board
dts.
Fixes: 755fff528b1b ("arm64: dts: rockchip: add variables for pcie completion to helios64")
Link: https://lore.kernel.org/all/e8524bf8-a90c-423f-8a58-9ef05a3db1dd@rock-chips.com/
Cc: stable@...r.kernel.org
Reported-by: Shawn Lin <shawn.lin@...k-chips.com>
Reviewed-by: Dragan Simic <dsimic@...jaro.org>
Signed-off-by: Geraldo Nascimento <geraldogabriel@...il.com>
---
arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
index e7d4a2f9a95e..78a7775c3b22 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
@@ -424,7 +424,6 @@ &pcie_phy {
&pcie0 {
ep-gpios = <&gpio2 RK_PD4 GPIO_ACTIVE_HIGH>;
- max-link-speed = <2>;
num-lanes = <2>;
pinctrl-names = "default";
status = "okay";
--
2.49.0
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