linux-kernel - [PATCH v2 5/6] iommu/sun50i: Add support for the D1 variant

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Date:   Mon,  2 Jan 2023 19:09:02 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Maxime Ripard <mripard@...nel.org>,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v2 5/6] iommu/sun50i: Add support for the D1 variant

D1 contains an IOMMU similar to the one in the H6 SoC, but the D1
variant has no external reset signal. It also has some register
definition changes, but none that affect the current driver.

Reviewed-by: Jernej Skrabec <jernej.skrabec@...il.com>
Signed-off-by: Samuel Holland <samuel@...lland.org>
---

(no changes since v1)

 drivers/iommu/sun50i-iommu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index d19f6ce25f76..8652559a2ca3 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -1085,11 +1085,15 @@ static int sun50i_iommu_probe(struct platform_device *pdev)
 	return ret;
 }
 
+static const struct sun50i_iommu_variant sun20i_d1_iommu = {
+};
+
 static const struct sun50i_iommu_variant sun50i_h6_iommu = {
 	.has_reset = true,
 };
 
 static const struct of_device_id sun50i_iommu_dt[] = {
+	{ .compatible = "allwinner,sun20i-d1-iommu", .data = &sun20i_d1_iommu },
 	{ .compatible = "allwinner,sun50i-h6-iommu", .data = &sun50i_h6_iommu },
 	{ /* sentinel */ },
 };
-- 
2.37.4