[PATCH 5/5] arm64: dts: rockchip: add the clock of the RK3588 PCIe SMMU

[Arun Iyengar via B4 Relay]

From: Arun Iyengar <aiyengar1990 at gmail.com>

The PCIe MMU-600 runs from ACLK_MMU_PCIE, which is also the parent of
the PCIe controllers' master clocks. When no PCIe controller is enabled,
nothing holds it and it gets gated as unused after boot, while
arm-smmu-v3 is still bound to the SMMU.

Describe the clock, so that the SMMU driver keeps it running.

Fixes: da92d3dfc871 ("arm64: dts: rockchip: enable the mmu600_pcie IOMMU on the rk3588 SoC")
Signed-off-by: Arun Iyengar <aiyengar1990 at gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
index bcd342c025c9..8eed22ca69ab 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
@@ -559,6 +559,7 @@ mmu600_pcie: iommu at fc900000 {
 			     <GIC_SPI 374 IRQ_TYPE_EDGE_RISING 0>,
 			     <GIC_SPI 367 IRQ_TYPE_EDGE_RISING 0>;
 		interrupt-names = "eventq", "gerror", "priq", "cmdq-sync";
+		clocks = <&cru ACLK_MMU_PCIE>;
 		#iommu-cells = <1>;
 		power-domains = <&power RK3588_PD_PCIE>;
 	};

-- 
2.55.0