]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
arm64: dts: rockchip: adjust SMMU interrupt type on rk3588
authorPatrick Wildt <patrick@blueri.se>
Mon, 10 Feb 2025 21:37:29 +0000 (22:37 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Feb 2025 12:30:19 +0000 (04:30 -0800)
commitdf072331325598d7706223f4d8d93f828bb3d020
tree42cacd1edeb5f8836c75994490ef067242e450fc
parentc1f3f3892d4526f18aaeffdb6068ce861e793ee3
arm64: dts: rockchip: adjust SMMU interrupt type on rk3588

[ Upstream commit 8546cfd08aa4b982acd2357403a1f15495d622ec ]

The SMMU architecture requires wired interrupts to be edge triggered,
which does not align with the DT description for the RK3588.  This leads
to interrupt storms, as the SMMU continues to hold the pin high and only
pulls it down for a short amount when issuing an IRQ.  Update the DT
description to be in line with the spec and perceived reality.

Signed-off-by: Patrick Wildt <patrick@blueri.se>
Fixes: cd81d3a0695c ("arm64: dts: rockchip: add rk3588 pcie and php IOMMUs")
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/Z6pxme2Chmf3d3uK@windev.fritz.box
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm64/boot/dts/rockchip/rk3588-base.dtsi