linux-kernel - [PATCH 5.10 019/120] arm64: dts: rockchip: Use only supported PCIe link speed on Pinebook Pro

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Message-Id: <20210208145819.168198981@linuxfoundation.org>
Date:   Mon,  8 Feb 2021 16:00:06 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Simon South <simon@...onsouth.net>,
        Heiko Stuebner <heiko@...ech.de>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 019/120] arm64: dts: rockchip: Use only supported PCIe link speed on Pinebook Pro

From: Simon South <simon@...onsouth.net>

[ 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@...onsouth.net>
Link: https://lore.kernel.org/r/20200930185627.5918-1-simon@simonsouth.net
Signed-off-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
index 06d48338c8362..219b7507a10fb 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
@@ -790,7 +790,6 @@
 &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>;
-- 
2.27.0