6.6-stable review patch. If anyone has any objections, please let me know.
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From: Guoqing Jiang guoqing.jiang@canonical.com
[ Upstream commit 3374b5fb26b300809ecd6aed9f414987dd17c313 ]
When test suspend resume with 6.8 based kernel, system can't resume and I got below error which can be also reproduced with 6.16 rc6+ kernel.
mtk-pcie-gen3 112f0000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x0) mtk-pcie-gen3 112f0000.pcie: PM: dpm_run_callback(): genpd_resume_noirq returns -110 mtk-pcie-gen3 112f0000.pcie: PM: failed to resume noirq: error -110
After investigation, looks pcie0 has the same problem as pcie1 as decribed in commit 3d7fdd8e38aa ("arm64: dts: mediatek: mt8195: Remove suspend-breaking reset from pcie1").
Fixes: ecc0af6a3fe6 ("arm64: dts: mt8195: Add pcie and pcie phy nodes") Signed-off-by: Guoqing Jiang guoqing.jiang@canonical.com Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Reviewed-by: Macpaul Lin macpaul.lin@mediatek.com Link: https://lore.kernel.org/r/20250721095959.57703-1-guoqing.jiang@canonical.com Signed-off-by: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/mediatek/mt8195.dtsi | 3 --- 1 file changed, 3 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi index 22604d3abde3b..4b701afe995e2 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi @@ -1524,9 +1524,6 @@ pcie0: pcie@112f0000 {
power-domains = <&spm MT8195_POWER_DOMAIN_PCIE_MAC_P0>;
- resets = <&infracfg_ao MT8195_INFRA_RST2_PCIE_P0_SWRST>; - reset-names = "mac"; - #interrupt-cells = <1>; interrupt-map-mask = <0 0 0 7>; interrupt-map = <0 0 0 1 &pcie_intc0 0>,