This is a note to let you know that I've just added the patch titled
arm64: dts: rockchip: Add missing power-domains for rk356x vop_mmu
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-rockchip-add-missing-power-domains-for-rk3.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 38550addac8eef348b96f2f9b71414b2afe04a01
Author: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
Date: Tue Jul 2 04:12:52 2024 +0300
arm64: dts: rockchip: Add missing power-domains for rk356x vop_mmu
[ Upstream commit 9d42c3ee3ce37cdad6f98c9e77bfbd0d791ac7da ]
The iommu@fe043e00 on RK356x SoC shares the VOP power domain, but the
power-domains property was not provided when the node has been added.
The consequence is that an attempt to reload the rockchipdrm module will
freeze the entire system. That is because on probe time,
pm_runtime_get_suppliers() gets called for vop@fe040000, which blocks
when pm_runtime_get_sync() is being invoked for iommu@fe043e00.
Fix the issue by adding the missing property.
Fixes: 9d6c6d978f97 ("arm64: dts: rockchip: rk356x: Add VOP2 nodes")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240702-rk356x-fix-vop-mmu-v1-1-a66d1a0c45ea@xxxxxxxxxxxxx
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index 820c98dbccc0a..2f885bc3665b5 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -749,6 +749,7 @@ vop_mmu: iommu@fe043e00 {
clocks = <&cru ACLK_VOP>, <&cru HCLK_VOP>;
clock-names = "aclk", "iface";
#iommu-cells = <0>;
+ power-domains = <&power RK3568_PD_VO>;
status = "disabled";
};
