arm64: dts: rockchip: Use only supported PCIe link speed on Pinebook Pro
authorSimon South <simon@simonsouth.net>
Wed, 30 Sep 2020 18:56:27 +0000 (14:56 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 10 Feb 2021 08:29:11 +0000 (09:29 +0100)
[ Upstream commit 642fb2795290c4abe629ca34fb8ff6d78baa9fd3 ]

On Pinebook Pro laptops with an NVMe SSD installed, prevent random
crashes in the NVMe driver by not attempting to use a PCIe link speed
higher than that supported by the RK3399 SoC.

See commit 712fa1777207 ("arm64: dts: rockchip: add max-link-speed for
rk3399").

Fixes: 5a65505a6988 ("arm64: dts: rockchip: Add initial support for Pinebook Pro")
Signed-off-by: Simon South <simon@simonsouth.net>
Link: https://lore.kernel.org/r/20200930185627.5918-1-simon@simonsouth.net
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts

index 06d4833..219b750 100644 (file)
 &pcie0 {
        bus-scan-delay-ms = <1000>;
        ep-gpios = <&gpio2 RK_PD4 GPIO_ACTIVE_HIGH>;
-       max-link-speed = <2>;
        num-lanes = <4>;
        pinctrl-names = "default";
        pinctrl-0 = <&pcie_clkreqn_cpm>;