[PATCH v6 2/3] ACPI: scan: Add support for RISC-V in acpi_iommu_configure_id()

Sunil V L
2025-08-18T05:32:29Z

acpi_iommu_configure_id() currently supports only IORT (ARM) and VIOT.
Add support for RISC-V as well.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/scan.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fb1fe9f3b1a3..f022f32de8a4 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/acpi.h>
#include <linux/acpi_iort.h>
+#include <linux/acpi_rimt.h>
#include <linux/acpi_viot.h>
#include <linux/iommu.h>
#include <linux/signal.h>
@@ -1628,8 +1629,11 @@ static int acpi_iommu_configure_id(struct device *dev, const u32 *id_in)
}

err = iort_iommu_configure_id(dev, id_in);
+ if (err && err != -EPROBE_DEFER)
+ err = rimt_iommu_configure_id(dev, id_in);
if (err && err != -EPROBE_DEFER)
err = viot_iommu_configure(dev);
+
mutex_unlock(&iommu_probe_device_lock);

return err;