Commit 9156585280f1 for kernel

commit 9156585280f161fc1c3552cf1860559edb2bb7e3
Author: Sunil V L <sunilvl@oss.qualcomm.com>
Date:   Tue Mar 3 11:46:05 2026 +0530

    ACPI: RIMT: Add dependency between iommu and devices

    EPROBE_DEFER ensures IOMMU devices are probed before the devices that
    depend on them. During shutdown, however, the IOMMU may be removed
    first, leading to issues. To avoid this, a device link is added
    which enforces the correct removal order.

    Fixes: 8f7729552582 ("ACPI: RISC-V: Add support for RIMT")
    Signed-off-by: Sunil V L <sunilvl@oss.qualcomm.com>
    Link: https://patch.msgid.link/20260303061605.722949-1-sunilvl@oss.qualcomm.com
    Signed-off-by: Paul Walmsley <pjw@kernel.org>

diff --git a/drivers/acpi/riscv/rimt.c b/drivers/acpi/riscv/rimt.c
index 229c4a0d47a3..906282b0e63c 100644
--- a/drivers/acpi/riscv/rimt.c
+++ b/drivers/acpi/riscv/rimt.c
@@ -263,6 +263,13 @@ static int rimt_iommu_xlate(struct device *dev, struct acpi_rimt_node *node, u32
 	if (!rimt_fwnode)
 		return -EPROBE_DEFER;

+	/*
+	 * EPROBE_DEFER ensures IOMMU is probed before the devices that
+	 * depend on them. During shutdown, however, the IOMMU may be removed
+	 * first, leading to issues. To avoid this, a device link is added
+	 * which enforces the correct removal order.
+	 */
+	device_link_add(dev, rimt_fwnode->dev, DL_FLAG_AUTOREMOVE_CONSUMER);
 	return acpi_iommu_fwspec_init(dev, deviceid, rimt_fwnode);
 }