From 8db07ce532c0b51fea974613002cdc6a27732929 Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@arm.com>
Date: Sun, 16 Jun 2024 23:40:55 +0100
Subject: [PATCH] iommu: sun50i: Add H616 compatible string
The IOMMU IP in the Allwinner H616 SoC is *almost* compatible to the H6,
but uses a different reset value for the bypass register, and adds some
more registers.
While a driver *can* be written to support both variants (which we in
fact do), the hardware itself is not fully compatible, so we require a
separate compatible string.
Add the new compatible string to the list, but without changing the
behaviour, since the driver already supports both variants.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20240616224056.29159-5-andre.przywara@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/sun50i-iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index 20a07f829085d..8d8f11854676c 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -1067,6 +1067,7 @@ static int sun50i_iommu_probe(struct platform_device *pdev)
static const struct of_device_id sun50i_iommu_dt[] = {
{ .compatible = "allwinner,sun50i-h6-iommu", },
+ { .compatible = "allwinner,sun50i-h616-iommu", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, sun50i_iommu_dt);
--
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