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From: Ashish Mhetre via iommu <iommu@lists.linux-foundation.org>
To: <thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
	<vdumpa@nvidia.com>, <will@kernel.org>, <robin.murphy@arm.com>,
	<joro@8bytes.org>, <linux-arm-kernel@lists.infradead.org>,
	<iommu@lists.linux-foundation.org>,
	<linux-kernel@vger.kernel.org>, <linux-tegra@vger.kernel.org>
Cc: Snikam@nvidia.com, Ashish Mhetre <amhetre@nvidia.com>,
	mperttunen@nvidia.com
Subject: [Patch v1] iommu: arm-smmu: Use arm-smmu-nvidia impl for Tegra234
Date: Tue, 29 Mar 2022 10:14:36 +0530	[thread overview]
Message-ID: <20220329044436.27732-1-amhetre@nvidia.com> (raw)

Tegra234 has 2 pairs of ARM MMU-500 instances. Each pair is used
together and should be programmed identically.
Add compatible string of Tegra234 iommu nodes in arm_smmu_impl_init()
so that arm-smmu-nvidia implementation will be used for programming
these SMMU instances.

Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
index 2c25cce38060..658f3cc83278 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
@@ -211,7 +211,8 @@ struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu)
 	if (of_property_read_bool(np, "calxeda,smmu-secure-config-access"))
 		smmu->impl = &calxeda_impl;
 
-	if (of_device_is_compatible(np, "nvidia,tegra194-smmu") ||
+	if (of_device_is_compatible(np, "nvidia,tegra234-smmu") ||
+	    of_device_is_compatible(np, "nvidia,tegra194-smmu") ||
 	    of_device_is_compatible(np, "nvidia,tegra186-smmu"))
 		return nvidia_smmu_impl_init(smmu);
 
-- 
2.17.1

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             reply	other threads:[~2022-03-29  4:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-29  4:44 Ashish Mhetre via iommu [this message]
2022-03-30 10:37 ` [Patch v1] iommu: arm-smmu: Use arm-smmu-nvidia impl for Tegra234 Thierry Reding

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