[PATCH 6.12 052/169] arm64: dts: rockchip: remove dangerous max-link-speed from helios64

Greg Kroah-Hartman
2026-01-28T15:45:19Z

From: Geraldo Nascimento <geraldogabriel@gmail.com>

commit 0368e4afcf20f377c81fa77b1c7d0dee4a625a44 upstream.

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@vger.kernel.org
Reported-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Geraldo Nascimento <geraldogabriel@gmail.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Link: https://patch.msgid.link/43bb639c120f599106fca2deee6c6599b2692c5c.1763415706.git.geraldogabriel@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts | 1 -
1 file changed, 1 deletion(-)

--- a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
@@ -424,7 +424,6 @@

&pcie0 {
ep-gpios = <&gpio2 RK_PD4 GPIO_ACTIVE_HIGH>;
- max-link-speed = <2>;
num-lanes = <2>;
pinctrl-names = "default";
status = "okay";